ABOUT NSI

The National Statistical Institute (NSI) is a state institution in Bulgaria that collects, processes and disseminates official statistical information on social, economic and demographic processes in the country. The NSI's activities are aimed at providing objective and reliable data that support informed decision-making by the state, business and society. The Institute works in accordance with international statistical standards and is an active participant in the European Statistical System.

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Migration of the population by place of residence, districts, age and sex

Migration of the population by place of residence, districts, age and sex

  • Data
    
    Place of residence
    Districts
    Age (years)    		ImmigrantsEmigrantsMigration increase
    TotalMalesFemalesTotalMalesFemalesTotalMalesFemales
    Rural residence 45 809 22 140 23 669 38 256 16 695 21 561 7 553 5 445 2 108
    0 - 9 5 652 2 895 2 757 6 046 3 039 3 007 -394 -144 -250
    10 - 19 4 005 1 773 2 232 5 027 1 976 3 051 -1 022 -203 -819
    20 - 29 4 983 1 913 3 070 5 783 1 948 3 835 -800 -35 -765
    30 - 39 5 753 2 757 2 996 5 265 2 170 3 095 488 587 -99
    40 - 49 5 947 3 126 2 821 3 874 1 851 2 023 2 073 1 275 798
    50 - 59 6 478 3 379 3 099 3 128 1 572 1 556 3 350 1 807 1 543
    60 - 69 6 729 3 582 3 147 3 420 1 786 1 634 3 309 1 796 1 513
    70+ 6 262 2 715 3 547 5 713 2 353 3 360 549 362 187
    Blagoevgrad 1 850 923 927 2 206 951 1 255 -356 -28 -328
    0 - 9 243 131 112 301 158 143 -58 -27 -31
    10 - 19 149 63 86 425 166 259 -276 -103 -173
    20 - 29 322 104 218 422 141 281 -100 -37 -63
    30 - 39 288 162 126 351 153 198 -63 9 -72
    40 - 49 233 134 99 196 86 110 37 48 -11
    50 - 59 226 135 91 168 88 80 58 47 11
    60 - 69 197 107 90 150 81 69 47 26 21
    70+ 192 87 105 193 78 115 -1 9 -10
    Burgas 2 999 1 494 1 505 1 980 833 1 147 1 019 661 358
    0 - 9 237 129 108 262 131 131 -25 -2 -23
    10 - 19 260 110 150 276 105 171 -16 5 -21
    20 - 29 300 103 197 314 94 220 -14 9 -23
    30 - 39 353 183 170 274 91 183 79 92 -13
    40 - 49 400 224 176 201 104 97 199 120 79
    50 - 59 472 244 228 168 90 78 304 154 150
    60 - 69 568 308 260 197 101 96 371 207 164
    70+ 409 193 216 288 117 171 121 76 45
    Varna 1 885 930 955 1 565 684 881 320 246 74
    0 - 9 219 107 112 267 123 144 -48 -16 -32
    10 - 19 179 64 115 189 60 129 -10 4 -14
    20 - 29 204 79 125 230 67 163 -26 12 -38
    30 - 39 249 141 108 217 105 112 32 36 -4
    40 - 49 303 164 139 190 96 94 113 68 45
    50 - 59 259 130 129 132 59 73 127 71 56
    60 - 69 241 131 110 129 70 59 112 61 51
    70+ 231 114 117 211 104 107 20 10 10
    Veliko Tarnovo 1 453 672 781 1 373 618 755 80 54 26
    0 - 9 159 80 79 181 87 94 -22 -7 -15
    10 - 19 125 40 85 150 53 97 -25 -13 -12
    20 - 29 133 48 85 149 51 98 -16 -3 -13
    30 - 39 153 65 88 147 61 86 6 4 2
    40 - 49 187 94 93 156 80 76 31 14 17
    50 - 59 181 99 82 134 64 70 47 35 12
    60 - 69 229 138 91 152 91 61 77 47 30
    70+ 286 108 178 304 131 173 -18 -23 5
    Vidin 810 377 433 810 360 450 0 17 -17
    0 - 9 55 33 22 81 49 32 -26 -16 -10
    10 - 19 62 24 38 94 35 59 -32 -11 -21
    20 - 29 78 29 49 93 36 57 -15 -7 -8
    30 - 39 71 36 35 101 44 57 -30 -8 -22
    40 - 49 94 46 48 86 34 52 8 12 -4
    50 - 59 132 68 64 76 36 40 56 32 24
    60 - 69 133 79 54 87 44 43 46 35 11
    70+ 185 62 123 192 82 110 -7 -20 13
    Vratsa 1 727 771 956 1 758 777 981 -31 -6 -25
    0 - 9 250 128 122 258 136 122 -8 -8 0
    10 - 19 176 73 103 221 87 134 -45 -14 -31
    20 - 29 200 64 136 266 97 169 -66 -33 -33
    30 - 39 191 80 111 224 103 121 -33 -23 -10
    40 - 49 189 96 93 168 74 94 21 22 -1
    50 - 59 232 117 115 208 104 104 24 13 11
    60 - 69 206 106 100 168 80 88 38 26 12
    70+ 283 107 176 245 96 149 38 11 27
    Gabrovo 775 397 378 461 220 241 314 177 137
    0 - 9 71 34 37 63 32 31 8 2 6
    10 - 19 54 24 30 65 34 31 -11 -10 -1
    20 - 29 54 28 26 55 23 32 -1 5 -6
    30 - 39 76 48 28 57 26 31 19 22 -3
    40 - 49 118 65 53 30 13 17 88 52 36
    50 - 59 127 72 55 30 16 14 97 56 41
    60 - 69 91 53 38 39 25 14 52 28 24
    70+ 184 73 111 122 51 71 62 22 40
    Dobrich 1 664 810 854 1 100 472 628 564 338 226
    0 - 9 191 91 100 160 78 82 31 13 18
    10 - 19 135 64 71 108 45 63 27 19 8
    20 - 29 128 49 79 139 45 94 -11 4 -15
    30 - 39 166 86 80 118 51 67 48 35 13
    40 - 49 205 98 107 115 46 69 90 52 38
    50 - 59 257 143 114 107 54 53 150 89 61
    60 - 69 321 158 163 162 76 86 159 82 77
    70+ 261 121 140 191 77 114 70 44 26
    Kardzhali 5 200 2 532 2 668 1 852 790 1 062 3 348 1 742 1 606
    0 - 9 446 238 208 235 118 117 211 120 91
    10 - 19 287 147 140 262 93 169 25 54 -29
    20 - 29 451 181 270 360 112 248 91 69 22
    30 - 39 705 287 418 324 131 193 381 156 225
    40 - 49 709 370 339 200 102 98 509 268 241
    50 - 59 1 047 517 530 137 68 69 910 449 461
    60 - 69 1 178 608 570 156 75 81 1 022 533 489
    70+ 377 184 193 178 91 87 199 93 106
    Kyustendil 788 396 392 893 442 451 -105 -46 -59
    0 - 9 68 35 33 95 48 47 -27 -13 -14
    10 - 19 58 31 27 97 50 47 -39 -19 -20
    20 - 29 86 37 49 120 51 69 -34 -14 -20
    30 - 39 109 50 59 134 64 70 -25 -14 -11
    40 - 49 110 58 52 88 43 45 22 15 7
    50 - 59 105 60 45 67 38 29 38 22 16
    60 - 69 105 64 41 114 62 52 -9 2 -11
    70+ 147 61 86 178 86 92 -31 -25 -6
    Lovech 1 131 513 618 1 047 472 575 84 41 43
    0 - 9 158 71 87 195 95 100 -37 -24 -13
    10 - 19 111 39 72 155 57 98 -44 -18 -26
    20 - 29 112 42 70 153 55 98 -41 -13 -28
    30 - 39 101 52 49 118 48 70 -17 4 -21
    40 - 49 119 62 57 76 40 36 43 22 21
    50 - 59 126 71 55 73 40 33 53 31 22
    60 - 69 159 75 84 89 49 40 70 26 44
    70+ 245 101 144 188 88 100 57 13 44
    Montana 1 298 634 664 1 271 546 725 27 88 -61
    0 - 9 175 95 80 194 104 90 -19 -9 -10
    10 - 19 123 51 72 151 59 92 -28 -8 -20
    20 - 29 135 50 85 175 55 120 -40 -5 -35
    30 - 39 140 69 71 178 75 103 -38 -6 -32
    40 - 49 146 81 65 105 49 56 41 32 9
    50 - 59 160 84 76 121 59 62 39 25 14
    60 - 69 166 95 71 127 67 60 39 28 11
    70+ 253 109 144 220 78 142 33 31 2
    Pazardzhik 1 144 517 627 1 413 609 804 -269 -92 -177
    0 - 9 174 82 92 201 94 107 -27 -12 -15
    10 - 19 123 54 69 233 87 146 -110 -33 -77
    20 - 29 165 55 110 255 89 166 -90 -34 -56
    30 - 39 138 67 71 209 83 126 -71 -16 -55
    40 - 49 133 57 76 122 66 56 11 -9 20
    50 - 59 147 78 69 107 57 50 40 21 19
    60 - 69 126 65 61 122 68 54 4 -3 7
    70+ 138 59 79 164 65 99 -26 -6 -20
    Pernik 810 393 417 650 297 353 160 96 64
    0 - 9 58 33 25 65 33 32 -7 0 -7
    10 - 19 52 25 27 52 21 31 0 4 -4
    20 - 29 49 13 36 69 25 44 -20 -12 -8
    30 - 39 89 41 48 61 24 37 28 17 11
    40 - 49 113 66 47 70 39 31 43 27 16
    50 - 59 110 60 50 60 27 33 50 33 17
    60 - 69 110 61 49 89 49 40 21 12 9
    70+ 229 94 135 184 79 105 45 15 30
    Pleven 1 333 612 721 1 532 662 870 -199 -50 -149
    0 - 9 213 98 115 248 129 119 -35 -31 -4
    10 - 19 156 48 108 227 85 142 -71 -37 -34
    20 - 29 147 49 98 235 98 137 -88 -49 -39
    30 - 39 137 58 79 166 72 94 -29 -14 -15
    40 - 49 136 68 68 161 72 89 -25 -4 -21
    50 - 59 161 83 78 126 61 65 35 22 13
    60 - 69 173 106 67 112 56 56 61 50 11
    70+ 210 102 108 257 89 168 -47 13 -60
    Plovdiv 3 211 1 491 1 720 2 958 1 213 1 745 253 278 -25
    0 - 9 558 284 274 604 290 314 -46 -6 -40
    10 - 19 274 130 144 330 134 196 -56 -4 -52
    20 - 29 423 146 277 410 109 301 13 37 -24
    30 - 39 457 197 260 455 157 298 2 40 -38
    40 - 49 419 215 204 295 123 172 124 92 32
    50 - 59 356 194 162 218 117 101 138 77 61
    60 - 69 345 187 158 225 122 103 120 65 55
    70+ 379 138 241 421 161 260 -42 -23 -19
    Razgrad 1 331 594 737 1 306 550 756 25 44 -19
    0 - 9 208 104 104 201 100 101 7 4 3
    10 - 19 85 40 45 188 70 118 -103 -30 -73
    20 - 29 158 40 118 256 89 167 -98 -49 -49
    30 - 39 161 72 89 221 89 132 -60 -17 -43
    40 - 49 160 77 83 127 56 71 33 21 12
    50 - 59 216 105 111 117 58 59 99 47 52
    60 - 69 203 102 101 76 39 37 127 63 64
    70+ 140 54 86 120 49 71 20 5 15
    Ruse 1 088 543 545 872 385 487 216 158 58
    0 - 9 174 89 85 151 82 69 23 7 16
    10 - 19 92 50 42 100 36 64 -8 14 -22
    20 - 29 113 47 66 124 45 79 -11 2 -13
    30 - 39 147 79 68 112 54 58 35 25 10
    40 - 49 151 81 70 100 48 52 51 33 18
    50 - 59 144 75 69 61 27 34 83 48 35
    60 - 69 107 63 44 55 28 27 52 35 17
    70+ 160 59 101 169 65 104 -9 -6 -3
    Silistra 1 174 527 647 1 123 440 683 51 87 -36
    7 - 9 141 78 63 166 83 83 -25 -5 -20
    10 - 19 125 51 74 184 60 124 -59 -9 -50
    20 - 29 161 47 114 215 66 149 -54 -19 -35
    30 - 39 115 43 72 138 51 87 -23 -8 -15
    40 - 49 123 56 67 89 35 54 34 21 13
    50 - 59 167 90 77 70 28 42 97 62 35
    60 - 69 192 95 97 103 47 56 89 48 41
    70+ 150 67 83 158 70 88 -8 -3 -5
    Sliven 1 102 484 618 1 272 557 715 -170 -73 -97
    0 - 9 175 86 89 269 141 128 -94 -55 -39
    10 - 19 158 54 104 250 91 159 -92 -37 -55
    20 - 29 115 46 69 164 57 107 -49 -11 -38
    30 - 39 109 52 57 130 57 73 -21 -5 -16
    40 - 49 117 54 63 114 52 62 3 2 1
    50 - 59 150 81 69 81 46 35 69 35 34
    60 - 69 136 56 80 107 56 51 29 0 29
    70+ 142 55 87 157 57 100 -15 -2 -13
    Smolyan 577 313 264 775 350 425 -198 -37 -161
    0 - 9 81 44 37 84 44 40 -3 0 -3
    10 - 19 21 11 10 114 46 68 -93 -35 -58
    20 - 29 65 28 37 166 59 107 -101 -31 -70
    30 - 39 85 47 38 117 53 64 -32 -6 -26
    40 - 49 79 48 31 92 46 46 -13 2 -15
    50 - 59 67 44 23 58 33 25 9 11 -2
    60 - 69 82 50 32 62 34 28 20 16 4
    70+ 97 41 56 82 35 47 15 6 9
    Sofia (stolitsa) 1 777 959 818 1 225 559 666 552 400 152
    0 - 9 325 162 163 236 117 119 89 45 44
    10 - 19 163 94 69 123 62 61 40 32 8
    20 - 29 305 194 111 130 54 76 175 140 35
    30 - 39 364 197 167 212 79 133 152 118 34
    40 - 49 240 128 112 181 85 96 59 43 16
    50 - 59 139 77 62 94 51 43 45 26 19
    60 - 69 114 58 56 112 58 54 2 0 2
    70+ 127 49 78 137 53 84 -10 -4 -6
    Sofia 2 410 1 216 1 194 2 021 960 1 061 389 256 133
    0 - 9 288 144 144 338 172 166 -50 -28 -22
    10 - 19 179 83 96 186 75 111 -7 8 -15
    20 - 29 247 105 142 288 112 176 -41 -7 -34
    30 - 39 369 192 177 323 145 178 46 47 -1
    40 - 49 321 185 136 244 145 99 77 40 37
    50 - 59 290 149 141 177 93 84 113 56 57
    60 - 69 302 158 144 161 97 64 141 61 80
    70+ 414 200 214 304 121 183 110 79 31
    Stara Zagora 1 899 928 971 1 964 841 1 123 -65 87 -152
    0 - 9 255 132 123 413 207 206 -158 -75 -83
    10 - 19 238 115 123 258 108 150 -20 7 -27
    20 - 29 174 64 110 263 87 176 -89 -23 -66
    30 - 39 167 71 96 245 87 158 -78 -16 -62
    40 - 49 272 146 126 152 66 86 120 80 40
    50 - 59 232 125 107 171 78 93 61 47 14
    60 - 69 231 124 107 147 73 74 84 51 33
    70+ 330 151 179 315 135 180 15 16 -1
    Targovishte 1 026 506 520 1 007 451 556 19 55 -36
    7 - 9 142 89 53 170 100 70 -28 -11 -17
    10 - 19 131 52 79 143 67 76 -12 -15 3
    20 - 29 90 28 62 168 47 121 -78 -19 -59
    30 - 39 131 61 70 153 62 91 -22 -1 -21
    40 - 49 134 74 60 98 45 53 36 29 7
    50 - 59 158 73 85 70 37 33 88 36 52
    60 - 69 137 81 56 96 50 46 41 31 10
    70+ 103 48 55 109 43 66 -6 5 -11
    Haskovo 2 473 1 263 1 210 1 698 784 914 775 479 296
    0 - 9 332 166 166 249 130 119 83 36 47
    10 - 19 229 122 107 222 101 121 7 21 -14
    20 - 29 283 155 128 229 84 145 54 71 -17
    30 - 39 334 165 169 206 98 108 128 67 61
    40 - 49 352 180 172 194 102 92 158 78 80
    50 - 59 367 185 182 137 70 67 230 115 115
    60 - 69 342 167 175 179 89 90 163 78 85
    70+ 234 123 111 282 110 172 -48 13 -61
    Shumen 1 952 905 1 047 1 362 533 829 590 372 218
    0 - 9 153 80 73 235 98 137 -82 -18 -64
    10 - 19 165 72 93 140 51 89 25 21 4
    20 - 29 205 52 153 252 73 179 -47 -21 -26
    30 - 39 256 109 147 185 71 114 71 38 33
    40 - 49 270 138 132 157 72 85 113 66 47
    50 - 59 321 158 163 101 45 56 220 113 107
    60 - 69 397 209 188 123 55 68 274 154 120
    70+ 185 87 98 169 68 101 16 19 -3
    Yambol 922 440 482 762 339 423 160 101 59
    0 - 9 103 52 51 124 60 64 -21 -8 -13
    10 - 19 95 42 53 84 38 46 11 4 7
    20 - 29 80 30 50 83 27 56 -3 3 -6
    30 - 39 92 47 45 89 36 53 3 11 -8
    40 - 49 114 61 53 67 32 35 47 29 18
    50 - 59 129 62 67 59 28 31 70 34 36
    60 - 69 138 78 60 81 44 37 57 34 23
    70+ 171 68 103 175 74 101 -4 -6 2
    *Since 2007 the migration increase includes not only internal, but also the international migration.
    29.04.2025
  • Time series

    Pop_5.3_Migration_DR_EN.xlsx

  • Metadata
    

    Euro-SDMX Metadata Structure (ESMS)

    INTERNAL AND INTERNATIONAL MIGRATION - Immigrants, Emigrants, Migration increase, Internal migration and International migration
    Contact
    Contact organisation

    National Statistical Institute

    Contact organisation unit

    Population and Housing Fund Statistics Department

    Contact name

    Chrastina Petkova-Tancheva

    Contact person function

    Head of Population and Housing Fund Statistics Department

    Contact mail address

    2, P. Volov Str.; 1038 Sofia, Bulgaria

    Contact email address

    ChPetkova@nsi.bg

    Contact phone number

    +359 2 9857 553

    Contact fax number
    Metadata update
    Metadata last certified29 April 2025
    Metadata last posted29 April 2025
    Metadata last update29 April 2025
    Statistical presentation
    Data description

    Persons who have changed their usual residence (current address) are surveyed. The registration is done at the moment of migration and the total migration is calculated as of 31.12 of the reference year. Internal migration is the change of usual residence within the country and international - the change of usual residence in Bulgaria with a residence abroad or vice versa. Migration growth of a given country territory is the difference between the immigration to and emigration from the area during the year.

    Classification system

    · Classification of Territorial Units for Statistical Purposes in Bulgaria (NUTS);

    · Unified Classification of the Administrative-Territorial and Territorial Units in Bulgaria (UCATTU);

    · Classification of countries (for the international migration purposes only).

    Sector coverage

    Data on migration concerns a calendar year and include all persons who have changed their current address within the country, address in the country with an address abroad and address abroad with an address in the country.

    Statistical concepts and definitions

    Migration growth of a given country territory is the difference between the immigration to and emigration from the area during the year.

    Net international migration is the difference between immigration into and emigration from the country.

    Statistical unit

    Migrated persons

    Statistical population

    Migrants - total number

    Reference area

    Regional breakdown of migrants is done according to the country administrative-territorial division as of 31.12 of the reference year - settlements, municipalities, districts and statistical regions.

    Time coverage

    On the NSI website

    · 2010 - 2024 internal migration;

    · 2010 - 2024 international migration.

    Base period

    Not applicable.

    Unit of measure

    Number; per 1000 population

    Reference period

    Calendar year

    Institutional mandate
    Legal acts and other agreements

    · Regulation (EU) 2020/851 of the European Parliament and of the Council amending Regulation (EC) No 862/2007 on Community statistics on migration and international protection;

    · Law on Statistics;

    · Law on Civil Registration.

    Data sharing

    Data is presented based on Regulation (EU) 2020/851 of the European Parliament and of the Council amending Regulation (EC) No 862/2007 on Community statistics on migration and international protection.

    Confidentiality
    Confidentiality - policy

    · Law on Statistics

    · Regulation (EC) No 223/2009 on European statistics (recital 24 and Article 20(4)) of 11 March 2009 (OJ L 87, p. 164), stipulates the need to establish common principles and guidelines ensuring the confidentiality of data used for the production of European statistics and the access to those confidential data with due account for technical developments and the requirements of users in a democratic society.

    Confidentiality - data treatment

    Individual data are not published in accordance with article 25 of the Law on Statistics. The publishing of individual data can be performed only in accordance with article 26 of the same law.

    Release policy
    Release calendar

    Information is published annually according to the Release Calendar presenting the results of the statistical surveys carried out by the National Statistical Institute.

    Release calendar access

    The calendar is available on the NSI website: http://www.nsi.bg/en/node/480

    User access

    Data is published on the NSI website, section Population (Demography, Migration and Projections) in accordance with the Law on Statistics and the European Statistics Code of Practice respecting the professional independence and aimed at objectivity, transparency and equal treatment of all consumers.

    Frequency of dissemination

    Annually

    Accessibility and clarity
    News release

    News release "Population and demographic processes".

    Publications

    · Population and demographic processes;

    · Statistical Reference book;

    · Statistical Yearbook.

    On-line database

    Data on migration are available to all users of the NSI website under the heading Population (Demography, Migration and Projections) - Migration: http://www.nsi.bg/en/node/6683

    Information System INFOSTAT     Internal migration:  https://infostat.nsi.bg/infostat/pages/module.jsf?x_2=32

    International migration:  https://infostat.nsi.bg/infostat/pages/module.jsf?x_2=38

     

     

     

    Micro-data access

    Anonymised individual data can be provide for scientific and research purposes, and for individual request according to the Rules for the provision of anonymised individual data for scientific and research purposes.

    Other

    Information service on request, according to the Rules for the dissemination of statistical products and services in NSI.

    Documentation on methodology

    · Methodology on migration: http://www.nsi.bg/sites/default/files/files/metadata/Pop_5_Metodology_migration_en.pdf;

    · Manual for functioning of the Unified System for Civil registration and Administrative Service of Population.

    Quality documentation

    Not available.

    Quality management
    Quality assurance

    Not applicable.

    Quality assessment

    Not applicable.

    Relevance
    User needs

    Data on migration are presented annually to the Eurostat and others - questionnaires filled in annually.

    At national and regional level the main data users are ministries, agencies, national organisations and local authorities.

    Data is presented to scientific institutes, universities, NGOs and others based on requests.

    User satisfaction

    No user' satisfaction surveys are carried out.

    Completeness

    Population data is available by sex, ages (different groupings) residence (different territorial levels), citizenship and country of birth.

    Accuracy and reliability
    Overall accuracy

    Not applicable.

    Sampling error

    Not applicable.

    Non-sampling error

    Not applicable.

    Timeliness and punctuality
    Timeliness

    Data are published up to the end of April in the year following the reference year.

    Punctuality

    Data is released according to the terms.

    Coherence and comparability

    Comparability - geographical

    Data is collected and processed for the different territorial units using one and the same methodology and definitions.

    Comparability - over time

    Changes of the methodology and definitions for different time periods are published in the survey methodology.

    Coherence - cross domain

    Not applicable.

    Coherence - internal

    Not applicable.

    Cost and burden

    Not applicable.

    Data revision
    Data revision - policy

    Not applicable.

    Data revision - practice

    Not applicable.

    Statistical processing
    Source data

    · Source of data on migrants is the Unified System for Civil registration and Administrative Service of Population. Migration is registered through a common USCRASP-CDS document "Change of current address";

    · Source of data on permanently staying foreigners is the Register of foreigners, Ministry of Interior;

    · Source of data on Bulgarians leaving the country - National Revenue Agency, declaration on refusal of health insurance rights due to absence from the country; National Social Security Institute

    Frequency of data collection

    · Monthly  for USCRASP data;

    · Annually- for NRA, MI and NSSI data.

    Data collection

    Exhaustively for all migrations registered during the year.

    Data validation

    Data on demographic events is checked and controlled before to be loaded in the IS Demography.

    For successful processing, the initial notification should meet the system rules on validation and control.

    The processed results are validated in respect the consistency of a single table and between the tables.

    Data compilation

    Data is processed by the IS "Demography" according to the rules for validation and control of the demographic events.

    Adjustment

    Not applicable.

    Comment
    Download in SDMX 2.1 file format: INTERNAL AND INTERNATIONAL MIGRATION - Immigrants, Emigrants, Migration increase, Internal migration and International migration
    Metadata Structure Definition in SDMX 2.1: ESMS_MSD+BNSI+2.0+SDMX.2.1.xml
    Download in SDMX 2.0 file format: INTERNAL AND INTERNATIONAL MIGRATION - Immigrants, Emigrants, Migration increase, Internal migration and International migration
    Metadata Structure Definition in SDMX 2.0: ESMS_MSD+BNSI+2.0+SDMX.2.0.xml
  • Quality reports
    

    ESS Standard for Quality Reports Structure (ESQRS)

    INTERNAL AND INTERNATIONAL MIGRATION - Immigrants, Emigrants, Migration increase, Internal migration and International migration
    Contact
    Contact organisation

    National Statistical Institute

    Contact organisation unit

    Population and Housing Fund Statistics Department

    Contact name

    Chrastina Petkova-Tancheva

    Contact person function

    Head of Population and Housing Fund Statistics Department

    Contact mail address

    2, P. Volov Str.; 1038 Sofia, Bulgaria

    Contact email address

    ChPetkova@nsi.bg

    Contact phone number

    +359 2 9857 553

    Contact fax number
    Statistical presentation
    Data description

    Persons who have changed their usual residence (current address) are surveyed. The registration is done at the moment of migration and the total migration is calculated as of 31.12 of the reference year. Internal migration is the change of usual residence within the country and international - the change of usual residence in Bulgaria with a residence abroad or vice versa. Migration growth of a given country territory is the difference between the immigration to and emigration from the area during the year.

    Classification system

    · Classification of Territorial Units for Statistical Purposes in Bulgaria (NUTS);

    · Unified Classification of the Administrative-Territorial and Territorial Units in Bulgaria (UCATTU);

    · Classification of countries (for the international migration purposes only).

    Sector coverage

    Data on migration concerns a calendar year and include all persons who have changed their current address within the country, address in the country with an address abroad and address abroad with an address in the country.

    Statistical concepts and definitions

    Migration growth of a given country territory is the difference between the immigration to and emigration from the area during the year.

    Net international migration is the difference between immigration into and emigration from the country.

    Statistical unit

    Migrated persons

    Statistical population

    Migrants - total number

    Reference area

    Regional breakdown of migrants is done according to the country administrative-territorial division as of 31.12 of the reference year - settlements, municipalities, districts and statistical regions.

    Time coverage

    On the NSI website

    · 2010 - 2024 internal migration;

    · 2010 - 2024 international migration.

    Base period

    Not applicable.

    Statistical processing
    Source data

    · Source of data on migrants is the Unified System for Civil registration and Administrative Service of Population. Migration is registered through a common USCRASP-CDS document "Change of current address";

    · Source of data on permanently staying foreigners is the Register of foreigners, Ministry of Interior;

    · Source of data on Bulgarians leaving the country - National Revenue Agency, declaration on refusal of health insurance rights due to absence from the country; National Social Security Institute

    Frequency of data collection

    · Monthly  for USCRASP data;

    · Annually- for NRA, MI and NSSI data.

    Data collection

    Exhaustively for all migrations registered during the year.

    Data validation

    Data on demographic events is checked and controlled before to be loaded in the IS Demography.

    For successful processing, the initial notification should meet the system rules on validation and control.

    The processed results are validated in respect the consistency of a single table and between the tables.

    Data compilation

    Data is processed by the IS "Demography" according to the rules for validation and control of the demographic events.

    Adjustment

    Not applicable.

    Quality management
    Quality assurance

    Not applicable.

    Quality assessment

    Not applicable.

    Relevance
    User needs

    Data on migration are presented annually to the Eurostat and others - questionnaires filled in annually.

    At national and regional level the main data users are ministries, agencies, national organisations and local authorities.

    Data is presented to scientific institutes, universities, NGOs and others based on requests.

    User satisfaction

    No user' satisfaction surveys are carried out.

    Completeness

    Population data is available by sex, ages (different groupings) residence (different territorial levels), citizenship and country of birth.

    Data completeness - rate

    100%

    Accuracy and reliability
    Overall accuracy

    Not applicable.

    Sampling error

    Not applicable.

    Sampling errors - indicators

    Not applicable

    Non-sampling error

    Not applicable.

    Coverage error

    Not applicable

    Over-coverage - rate

    Not applicable

    Common units - proportion

    Not applicable

    Measurement error

    Not applicable

    Non response error

    Not applicable

    Unit non-response - rate

    not applicable

    Item non-response - rate

    Not applicable

    Processing error

    Not applicable

    Imputation - rate

    Not applicable

    Model assumption error

    Not applicable

    Seasonal adjustment

    Not applicable

    Data revision - policy

    Not applicable.

    Data revision - practice

    Not applicable.

    Data revision - average size

    Not applicable

    Timeliness and punctuality
    Timeliness

    Data are published up to the end of April in the year following the reference year.

    Time lag - first results

    4 months after the reference year

    Time lag - final results

    4 months after the reference year

    Punctuality

    Data is released according to the terms.

    Punctuality - delivery and publication

    Data is released and published according to the terms

    Coherence and comparability

    Comparability - geographical

    Data is collected and processed for the different territorial units using one and the same methodology and definitions.

    Asymmetry for mirror flows statistics - coefficient

    Not applicable

    Comparability - over time

    Changes of the methodology and definitions for different time periods are published in the survey methodology.

    Length of comparable time series

    2007 onwards

    Coherence - cross domain

    Not applicable.

    Coherence - sub annual and annual statistics

    Not applicable

    Coherence - National Accounts

    Not applicable

    Coherence - internal

    Not applicable.

    Accessibility and clarity
    News release

    News release "Population and demographic processes".

    Publications

    · Population and demographic processes;

    · Statistical Reference book;

    · Statistical Yearbook.

    On-line database

    Data on migration are available to all users of the NSI website under the heading Population (Demography, Migration and Projections) - Migration: http://www.nsi.bg/en/node/6683

    Information System INFOSTAT     Internal migration:  https://infostat.nsi.bg/infostat/pages/module.jsf?x_2=32

    International migration:  https://infostat.nsi.bg/infostat/pages/module.jsf?x_2=38

     

     

     

    Data tables - consultations
    Micro-data access

    Anonymised individual data can be provide for scientific and research purposes, and for individual request according to the Rules for the provision of anonymised individual data for scientific and research purposes.

    Other

    Information service on request, according to the Rules for the dissemination of statistical products and services in NSI.

    Metadata - consultations
    Documentation on methodology

    · Methodology on migration: http://www.nsi.bg/sites/default/files/files/metadata/Pop_5_Metodology_migration_en.pdf;

    · Manual for functioning of the Unified System for Civil registration and Administrative Service of Population.

    Metadata completeness – rate
    Quality documentation

    Not available.

    Cost and burden

    Not applicable.

    Confidentiality
    Confidentiality - policy

    · Law on Statistics

    · Regulation (EC) No 223/2009 on European statistics (recital 24 and Article 20(4)) of 11 March 2009 (OJ L 87, p. 164), stipulates the need to establish common principles and guidelines ensuring the confidentiality of data used for the production of European statistics and the access to those confidential data with due account for technical developments and the requirements of users in a democratic society.

    Confidentiality – data treatment

    Individual data are not published in accordance with article 25 of the Law on Statistics. The publishing of individual data can be performed only in accordance with article 26 of the same law.

    Comment
    Download in SDMX 2.1 file format: INTERNAL AND INTERNATIONAL MIGRATION - Immigrants, Emigrants, Migration increase, Internal migration and International migration
    Metadata Structure Definition in SDMX 2.1: ESQRS_MSD+BNSI+2.0+SDMX.2.1.xml
    Download in SDMX 2.0 file format: INTERNAL AND INTERNATIONAL MIGRATION - Immigrants, Emigrants, Migration increase, Internal migration and International migration
    Metadata Structure Definition in SDMX 2.0: ESQRS_MSD+BNSI+2.0+SDMX.2.0.xml
  • Press releases
    Date Name File
    22.05.2025 Mortality and Life expectancy - 2022 - 2024 738.1 kb
    29.04.2025 Population and Demographic processes - 2024 - final data 646.4 kb
    26.07.2024 Post census revision of the population data for the period 2012 – 2021 220.84 kb
    22.05.2024 Life Expectancy at Birth in the Period 2021 - 2023 456.11 kb
    29.04.2024 Population and Demographic Processes in 2023 1370.09 kb
    22.06.2023 Households in the Republic of Bulgaria as of September 7, 2021 996.63 kb
    More pressreleases from Demographic and social statistics
  • Upcoming press releases and data (3)
    Date Name
    29.04.2026 Population and Demographic processes - 2025 - final data
    8.05.2026 Mortality and Life expectancy - 2023 - 2025
    6.07.2026 Residence permits for foreigners in the Republic of Bulgaria - 2025
  • Publications
    Date Name File
    4.03.2025 Regions, districts and municipalities in the Republic of Bulgaria 2023 5547.02 kb
    13.12.2024 Health Services 2024 8092.74 kb
    9.10.2024 Population and Demographic Processes 2023 5251.38 kb
    24.06.2024 Statistical Reference Book 2024 12671.2 kb
    14.06.2024 Bulgaria 2024 13033.13 kb
    14.06.2024 Statistical Reference Book 2024 (Bulgarian version) 8295.99 kb
    More publications in Demographic and social statistics
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The National Statistical Institute (NSI) is a state institution in Bulgaria that collects, processes and disseminates official statistical information on social, economic and demographic processes in the country. The NSI's activities are aimed at providing objective and reliable data that support informed decision-making by the state, business and society. The Institute works in accordance with international statistical standards and is an active participant in the European Statistical System.

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Contacts

Contact number

(02) 9857 111

Email

Info@nsi.bg

Address

2, P. Volov Str. 1038 Sofia, Bulgaria
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