Population by towns and sex



POPULATION BY TOWNS AND SEX AS OF 31.12.2019
(Number)
Districts
Towns
Population as of 31.12.2019
Total Male Female
Total 5 125 407 2 461 774 2 663 633
Blagoevgrad 182 137 87 034 95 103
Bansko 9 185 4 461 4 724
Belitsa 2 968 1 443 1 525
Blagoevgrad 68 679 32 583 36 096
Gotse Delchev 18 250 8 646 9 604
Dobrinishte 2 588 1 262 1 326
Kresna 3 459 1 762 1 697
Melnik 177 87 90
Petrich 26 932 12 824 14 108
Razlog 11 295 5 419 5 876
Sandanski 24 722 11 715 13 007
Simitli 6 263 3 132 3 131
Hadzhidimovo 2 444 1 227 1 217
Yakoruda 5 175 2 473 2 702
Burgas 313 132 149 712 163 420
Aytos 19 135 9 175 9 960
Aheloy 2 275 1 143 1 132
Ahtopol 1 201 593 608
Burgas 201 779 95 633 106 146
Bulgarovo 1 520 761 759
Kableshkovo 2 817 1 405 1 412
Kameno 4 103 2 000 2 103
Karnobat 16 971 8 216 8 755
Kiten 989 484 505
Malko Tarnovo 1 965 1 000 965
Nesebar 13 600 6 463 7 137
Obzor 2 423 1 263 1 160
Pomorie 13 734 6 472 7 262
Primorsko 2 937 1 472 1 465
Sveti Vlas 4 097 2 025 2 072
Sozopol 4 314 2 086 2 228
Sredets 8 512 4 215 4 297
Sungurlare 2 953 1 458 1 495
Tsarevo 5 693 2 807 2 886
Chernomorets 2 114 1 041 1 073
Varna 394 795 191 195 203 600
Aksakovo 7 658 3 760 3 898
Beloslav 7 226 3 620 3 606
Byala 2 120 1 061 1 059
Varna 336 216 162 280 173 936
Valchi Dol 2 833 1 385 1 448
Devnya 7 727 3 841 3 886
Dolni Chiflik 6 324 3 119 3 205
Dalgopol 4 413 2 211 2 202
Ignatievo 3 932 1 919 2 013
Provadia 11 903 5 821 6 082
Suvorovo 4 443 2 178 2 265
Veliko Tarnovo 164 538 78 970 85 568
Byala Cherkva 1 665 822 843
Veliko Tarnovo 68 828 32 625 36 203
Gorna Oryahovitsa 28 429 13 615 14 814
Debelets 3 689 1 810 1 879
Dolna Oryahovitsa 2 605 1 266 1 339
Elena 4 745 2 263 2 482
Zlataritsa 2 085 1 023 1 062
Kilifarevo 2 055 1 013 1 042
Lyaskovets 7 338 3 486 3 852
Pavlikeni 9 235 4 457 4 778
Polski Trambesh 3 829 1 909 1 920
Svishtov 24 275 11 864 12 411
Strazhitsa 4 165 2 039 2 126
Suhindol 1 595 778 817
Vidin 53 774 26 016 27 758
Belogradchik 4 409 2 153 2 256
Bregovo 2 082 1 007 1 075
Vidin 40 620 19 589 21 031
Gramada 1 263 657 606
Dimovo 1 020 510 510
Dunavtsi 1 826 876 950
Kula 2 554 1 224 1 330
Vratsa 93 905 45 270 48 635
Byala Slatina 9 644 4 643 5 001
Vratsa 51 674 24 725 26 949
Kozloduy 11 666 5 760 5 906
Krivodol 2 583 1 255 1 328
Mezdra 9 079 4 336 4 743
Mizia 2 564 1 275 1 289
Oryahovo 4 204 2 065 2 139
Roman 2 491 1 211 1 280
Gabrovo 87 265 41 913 45 352
Gabrovo 51 217 24 604 26 613
Dryanovo 6 455 3 091 3 364
Plachkovtsi 1 399 695 704
Sevlievo 20 210 9 748 10 462
Tryavna 7 984 3 775 4 209
Dobrich 118 492 56 744 61 748
Balchik 10 962 5 324 5 638
General Toshevo 6 029 2 938 3 091
Dobrich 82 240 39 109 43 131
Kavarna 10 690 5 145 5 545
Tervel 5 557 2 744 2 813
Shabla 3 014 1 484 1 530
Kardzhali 63 856 30 519 33 337
Ardino 4 135 2 053 2 082
Dzhebel 3 297 1 608 1 689
Krumovgrad 4 903 2 360 2 543
Kardzhali 43 600 20 646 22 954
Momchilgrad 7 921 3 852 4 069
Kyustendil 81 884 39 483 42 401
Bobovdol 4 793 2 503 2 290
Boboshevo 1 145 552 593
Dupnitsa 29 134 13 811 15 323
Kocherinovo 1 987 941 1 046
Kyustendil 39 284 18 942 20 342
Rila 2 039 993 1 046
Sapareva Banya 3 502 1 741 1 761
Lovech 77 180 37 361 39 819
Apriltsi 2 419 1 164 1 255
Letnitsa 2 408 1 191 1 217
Lovech 31 695 15 250 16 445
Lukovit 8 217 3 991 4 226
Teteven 8 548 4 169 4 379
Troyan 19 055 9 173 9 882
Ugarchin 2 322 1 162 1 160
Yablanitsa 2 516 1 261 1 255
Montana 81 689 39 445 42 244
Berkovitsa 11 841 5 767 6 074
Boychinovtsi 1 253 614 639
Brusartsi 913 451 462
Valchedram 3 016 1 433 1 583
Varshets 5 444 2 669 2 775
Lom 19 361 9 327 10 034
Montana 38 341 18 440 19 901
Chiprovtsi 1 520 744 776
Pazardzhik 158 814 76 887 81 927
Batak 2 706 1 363 1 343
Belovo 3 315 1 610 1 705
Bratsigovo 3 658 1 798 1 860
Velingrad 21 076 9 987 11 089
Vetren 2 742 1 362 1 380
Kostandovo 3 992 1 993 1 999
Pazardzhik 67 650 32 481 35 169
Panagyurishte 15 839 7 758 8 081
Peshtera 15 644 7 650 7 994
Rakitovo 7 871 3 885 3 986
Septemvri 7 201 3 535 3 666
Strelcha 3 738 1 764 1 974
Sarnitsa 3 382 1 701 1 681
Pernik 94 747 45 618 49 129
Batanovtsi 2 032 1 005 1 027
Breznik 3 850 1 857 1 993
Zemen 1 461 744 717
Pernik 72 241 34 567 37 674
Radomir 12 843 6 285 6 558
Tran 2 320 1 160 1 160
Pleven 158 186 76 084 82 102
Belene 6 860 3 670 3 190
Gulyantsi 2 835 1 380 1 455
Dolna Mitropolia 2 780 1 372 1 408
Dolni Dabnik 3 759 1 785 1 974
Iskar 2 770 1 363 1 407
Knezha 9 207 4 484 4 723
Koynare 3 155 1 569 1 586
Levski 8 623 4 079 4 544
Nikopol 2 828 1 383 1 445
Pleven 95 086 45 074 50 012
Pordim 1 812 893 919
Slavyanovo 3 490 1 688 1 802
Trastenik 3 931 1 932 1 999
Cherven Bryag 11 050 5 412 5 638
Plovdiv 505 158 240 547 264 611
Asenovgrad 48 483 23 315 25 168
Banya 3 139 1 450 1 689
Brezovo 1 626 821 805
Kalofer 2 695 1 246 1 449
Karlovo 20 809 9 883 10 926
Klisura 895 411 484
Krichim 7 817 3 847 3 970
Kuklen 5 763 2 820 2 943
Laki 1 808 902 906
Perushtitsa 4 710 2 318 2 392
Plovdiv 347 851 164 971 182 880
Parvomay 11 915 5 608 6 307
Rakovski 14 692 7 134 7 558
Sadovo 2 424 1 207 1 217
Sopot 8 177 3 915 4 262
Stamboliyski 10 758 5 155 5 603
Saedinenie 5 329 2 586 2 743
Hisarya 6 267 2 958 3 309
Razgrad 52 159 24 863 27 296
Zavet 2 638 1 299 1 339
Isperih 7 928 3 859 4 069
Kubrat 6 259 3 013 3 246
Loznitsa 2 008 972 1 036
Razgrad 30 173 14 194 15 979
Tsar Kaloyan 3 153 1 526 1 627
Ruse 168 519 81 932 86 587
Borovo 1 733 867 866
Byala 7 329 3 546 3 783
Vetovo 4 024 2 056 1 968
Glodzhevo 3 153 1 576 1 577
Dve Mogili 3 647 1 805 1 842
Marten 3 369 1 677 1 692
Ruse 141 231 68 407 72 824
Senovo 1 219 611 608
Slivo pole 2 814 1 387 1 427
Silistra 47 781 22 812 24 969
Alfatar 1 382 675 707
Glavinitsa 1 310 626 684
Dulovo 6 430 3 106 3 324
Silistra 30 983 14 689 16 294
Tutrakan 7 676 3 716 3 960
Sliven 121 033 58 030 63 003
Kermen 1 520 751 769
Kotel 5 092 2 422 2 670
Nova Zagora 20 239 9 768 10 471
Sliven 84 985 40 462 44 523
Tvarditsa 5 569 2 815 2 754
Shivachevo 3 628 1 812 1 816
Smolyan 58 401 27 947 30 454
Devin 5 927 2 782 3 145
Dospat 2 058 992 1 066
Zlatograd 6 248 2 927 3 321
Madan 5 233 2 589 2 644
Nedelino 3 766 1 812 1 954
Rudozem 3 364 1 648 1 716
Smolyan 27 092 12 889 14 203
Chepelare 4 713 2 308 2 405
Sofia (stolitsa) 1 270 169 608 444 661 725
Bankya 11 294 5 520 5 774
Buhovo 2 545 1 274 1 271
Novi Iskar 13 762 6 760 7 002
Sofia 1 242 568 594 890 647 678
Sofia 139 560 67 849 71 711
Bozhurishte 5 675 2 784 2 891
Botevgrad 19 086 9 105 9 981
Godech 3 872 1 894 1 978
Dolna Banya 4 369 2 138 2 231
Dragoman 3 014 1 454 1 560
Elin Pelin 6 802 3 256 3 546
Etropole 9 545 4 794 4 751
Zlatitsa 4 461 2 156 2 305
Ihtiman 12 641 6 216 6 425
Koprivshtitsa 1 976 961 1 015
Kostenets 5 877 2 834 3 043
Kostinbrod 11 321 5 519 5 802
Momin prohod 1 365 655 710
Pirdop 6 547 3 141 3 406
Pravets 3 573 1 776 1 797
Samokov 25 016 12 026 12 990
Svoge 7 438 3 676 3 762
Slivnitsa 6 982 3 464 3 518
Stara Zagora 226 997 108 952 118 045
Gurkovo 2 729 1 376 1 353
Galabovo 7 251 3 656 3 595
Kazanlak 44 699 21 150 23 549
Kran2 3 031 1 505 1 526
Maglizh 2 957 1 479 1 478
Nikolaevo 2 722 1 358 1 364
Pavel Banya 2 561 1 202 1 359
Radnevo 11 291 5 579 5 712
Stara Zagora 134 726 64 316 70 410
Chirpan 13 911 6 800 7 111
Shipka 1 119 531 588
Targovishte 60 050 28 592 31 458
Antonovo 1 404 689 715
Omurtag 7 079 3 341 3 738
Opaka 2 447 1 218 1 229
Popovo 13 776 6 585 7 191
Targovishte 35 344 16 759 18 585
Haskovo 162 659 78 735 83 924
Dimitrovgrad 33 088 15 885 17 203
Ivaylovgrad 3 168 1 572 1 596
Lyubimets 6 859 3 405 3 454
Madzharovo 575 296 279
Merichleri 1 450 691 759
Svilengrad 17 184 8 471 8 713
Simeonovgrad 7 020 3 525 3 495
Topolovgrad 4 701 2 295 2 406
Harmanli 19 395 9 819 9 576
Haskovo 69 219 32 776 36 443
Shumen 105 478 50 566 54 912
Veliki Preslav 6 981 3 382 3 599
Varbitsa 3 379 1 666 1 713
Kaolinovo 1 527 781 746
Kaspichan 2 700 1 312 1 388
Novi Pazar 11 086 5 391 5 695
Pliska 804 380 424
Smyadovo 3 559 1 724 1 835
Shumen 75 442 35 930 39 512
Yambol 83 049 40 254 42 795
Bolyarovo 1 113 558 555
Elhovo 9 211 4 462 4 749
Straldzha 5 503 2 782 2 721
Yambol 67 222 32 452 34 770
13.04.2020


Euro-SDMX Metadata Structure (ESMS)

POPULATION, DEMOGRAPHIC PROCESSES AND DEMOGRAPHIC PROJECTIONS - Population, Average annual population, Natural movement of the population, Population projections
Contact
Contact organisation

National Statistical Institute

Contact organisation unit

Population and Housing Fund Statistics

Contact name

Magdalena Kostova

Contact person function

Director "Demographic and Social Statistics" Directorate

 

Contact mail address

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

Contact email address

[email protected]

Contact phone number

+359 2 9857 411

Contact fax number
Metadata update
Metadata last certified13 April 2020
Metadata last posted13 April 2020
Metadata last update13 April 2020
Statistical presentation
Data description

The population and its structures are defined as of 31.12. of the respective year. The population number and structures at the end of each year are calculated based on the previous year data and data on natural and migration increase during the reference year.

In the census years, recalculations of the population are done as of the end of the respective and the previous year. The recalculations are based on the census results and the respective calculations for the natural and migration increase, received from the current demographic statistics for the reference year.

The concept "permanent population" is applied in calculation of the population and its structures. The persons are included, permanently living in the country (having current address) as of 31.12. of the respective year and who have not been absent from the country for more than 1 year period.

Demographic projections (the population perspective projections) are calculations done under settled in advance conditions for the future development of the fertility, mortality and migration. They give an idea for the population development during the projected period. Different scenarios for the population projections are used depending on the expected social-economic development of the country.

Classification system

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

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

Sector coverage

The data on population number and structures cover persons permanently living at the country territory no matter their citizenship and status. The population territorial distribution (by settlements, municipalities, districts and statistical regions) is done according to the country administrative-territorial division as of 31.12. of the reference year and current address officially stated address of residence.

The last demographic projection elaborated by the NSI concerns the development of population up to 2080 with a starting point - the country population as of 31.12.2016 and takes into account the number of demographic events in 2017. The projection is prepared by single ages for each year within the period. Data is published for five-year periods.

Statistical concepts and definitions

Population as of 31.12.

Persons permanently living (having current address) in the country as of 31.12. of the reference year and who have not been absent for more than 1 year period.

The population number and structures at the end of each year are calculated on the basis of the population data for the preceding year and the data for natural and mechanical movement of the population during the current year.

Average annual population

The average annual number of population is average arithmetical value of the population at the end of previous and the end of reference year.

Natural change

The difference between the number of live births and the number of deaths during the reference year.

Natural increase rate

Calculated per 1 000 population and representing the difference between the number of live births and deaths during the year and the average annual population for the same year.

Migration growth

The difference between immigration into and emigration from the area during the year.

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

Age

The population age is calculated as of 31.12. in completed years based on date of birth, i.e. the age reached at the end of the reference year.

Population under, at and over working age

The age limits used for distribution of the population under, at and over working age defined according to the annually updated retirement age, adopted by the Council of Ministers.

Age dependency ratio

Ratio of the number of persons under 15 years of age and number of persons 65 and more per 100 persons aged 15 to 64 years calculated in percentage.

Old age dependency ratio

Ratio of the number of persons aged 65 and more per 100 persons aged 15-64 years calculated in percentage.

Rate of demographic ageing

Rate of increase of the population over working age (according to the respective age limits for male and female) compared to the previous year calculated in percentage.

Demographic replacement rate

Ratio between the number of population aged 15 to 19 years (persons entering working age) and the number of population aged 60 to 64 years (persons leaving working age) calculated in percentage.

Statistical unit

Persons

Statistical population

Total population

Reference area

Regional breakdown of the population 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

For population:

· 1880 - 2011  by census years;

· 1946 - 2019  as of 31.12.;

· 2010 - 2019  on the NSI website.

For national projection - 2020 - 2080

For district projections - 2020 - 2080

Base period

Not applicable.

Unit of measure

Number; percentage (%)

Reference period

The calendar year

Institutional mandate
Legal acts and other agreements

· Law on Statistics;

· Regulation (EU) 223/2009 of the European Parliament and of the Council on the European statistics;

· Regulation (EU) 1260/2013 of the European Parliament and of the Council on the European demographic  statistics;

· Commission implementing regulation (EU) № 205/2014 laying down uniformed conditions for the implementation of Regulation (EU) No 1260/2013 of the European Parliament and the Council on European demographic statistics, as regards breakdowns of data, deadlines and data revisions

· Law on Civil Registration.

Data sharing

Data are transmitted to Eurostat on the basis of  Regulation (EU) 1260/2013 of the European Parliament and of the Council on the European demographic statistics;

 

 

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

 

User access

Data is published on the NSI website, section Population and demographic processes 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;

· Booklet Bulgaria.

On-line database

Data on population are available to all users of the NSI website under the heading Population (Demography, Migration and Projections): http://www.nsi.bg/en/node/6701

Information system Infostat: https://infostat.nsi.bg/infostat/pages/module.jsf?x_2=80 (Population) and https://infostat.nsi.bg/infostat/pages/module.jsf?x_2=122 (Population projections)

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 population and demographic processes: http://www.nsi.bg/sites/default/files/files/metadata/Pop_6_Metodology_population_en.pdf;

· Methodology on population projections.

Quality documentation

Not available.

Quality management
Quality assurance

Not applicable.

Quality assessment

Not applicable.

Relevance
User needs

Data on population and demographic processes are presented annually to the Eurostat, UN and UNICEF - 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, age (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

Recalculations of the population at the end of reference year and for the previous one are done in the census years.

Data revision - practice

The recalculation of population is based on the census results and the respective calculations of the natural and migration growth for the reference year, received form the current demographic statistics.

Statistical processing
Source data

Source of data on the population number and structures is the Information system "Demography" and the information on demographic events (births, deaths, marriages, divorces, migration) received from the Unified System for Civil registration and Administrative Service of Population.

Frequency of data collection

Monthly

Data collection

Exhaustively for all registered during the year demographic events.

Computer files are received from the Unified System for Civil registration and Administrative Service of Population (administrative source).

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
Metadata Structure Definition in SDMX 2.1: ESMS_MSD+BNSI+2.0+SDMX.2.1.xml
Metadata Structure Definition in SDMX 2.0: ESMS_MSD+BNSI+2.0+SDMX.2.0.xml


ESS Standard for Quality Reports Structure (ESQRS)

POPULATION, DEMOGRAPHIC PROCESSES AND DEMOGRAPHIC PROJECTIONS - Population, Average annual population, Natural movement of the population, Population projections
Contact
Contact organisation

National Statistical Institute

Contact organisation unit

Population and Housing Fund Statistics

Contact name

Magdalena Kostova

Contact person function

Director "Demographic and Social Statistics" Directorate

 

Contact mail address

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

Contact email address

[email protected]

Contact phone number

+359 2 9857 411

Contact fax number
Statistical presentation
Data description

The population and its structures are defined as of 31.12. of the respective year. The population number and structures at the end of each year are calculated based on the previous year data and data on natural and migration increase during the reference year.

In the census years, recalculations of the population are done as of the end of the respective and the previous year. The recalculations are based on the census results and the respective calculations for the natural and migration increase, received from the current demographic statistics for the reference year.

The concept "permanent population" is applied in calculation of the population and its structures. The persons are included, permanently living in the country (having current address) as of 31.12. of the respective year and who have not been absent from the country for more than 1 year period.

Demographic projections (the population perspective projections) are calculations done under settled in advance conditions for the future development of the fertility, mortality and migration. They give an idea for the population development during the projected period. Different scenarios for the population projections are used depending on the expected social-economic development of the country.

Classification system

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

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

Sector coverage

The data on population number and structures cover persons permanently living at the country territory no matter their citizenship and status. The population territorial distribution (by settlements, municipalities, districts and statistical regions) is done according to the country administrative-territorial division as of 31.12. of the reference year and current address officially stated address of residence.

The last demographic projection elaborated by the NSI concerns the development of population up to 2080 with a starting point - the country population as of 31.12.2016 and takes into account the number of demographic events in 2017. The projection is prepared by single ages for each year within the period. Data is published for five-year periods.

Statistical concepts and definitions

Population as of 31.12.

Persons permanently living (having current address) in the country as of 31.12. of the reference year and who have not been absent for more than 1 year period.

The population number and structures at the end of each year are calculated on the basis of the population data for the preceding year and the data for natural and mechanical movement of the population during the current year.

Average annual population

The average annual number of population is average arithmetical value of the population at the end of previous and the end of reference year.

Natural change

The difference between the number of live births and the number of deaths during the reference year.

Natural increase rate

Calculated per 1 000 population and representing the difference between the number of live births and deaths during the year and the average annual population for the same year.

Migration growth

The difference between immigration into and emigration from the area during the year.

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

Age

The population age is calculated as of 31.12. in completed years based on date of birth, i.e. the age reached at the end of the reference year.

Population under, at and over working age

The age limits used for distribution of the population under, at and over working age defined according to the annually updated retirement age, adopted by the Council of Ministers.

Age dependency ratio

Ratio of the number of persons under 15 years of age and number of persons 65 and more per 100 persons aged 15 to 64 years calculated in percentage.

Old age dependency ratio

Ratio of the number of persons aged 65 and more per 100 persons aged 15-64 years calculated in percentage.

Rate of demographic ageing

Rate of increase of the population over working age (according to the respective age limits for male and female) compared to the previous year calculated in percentage.

Demographic replacement rate

Ratio between the number of population aged 15 to 19 years (persons entering working age) and the number of population aged 60 to 64 years (persons leaving working age) calculated in percentage.

Statistical unit

Persons

Statistical population

Total population

Reference area

Regional breakdown of the population 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

For population:

· 1880 - 2011  by census years;

· 1946 - 2019  as of 31.12.;

· 2010 - 2019  on the NSI website.

For national projection - 2020 - 2080

For district projections - 2020 - 2080

Base period

Not applicable.

Statistical processing
Source data

Source of data on the population number and structures is the Information system "Demography" and the information on demographic events (births, deaths, marriages, divorces, migration) received from the Unified System for Civil registration and Administrative Service of Population.

Frequency of data collection

Monthly

Data collection

Exhaustively for all registered during the year demographic events.

Computer files are received from the Unified System for Civil registration and Administrative Service of Population (administrative source).

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 population and demographic processes are presented annually to the Eurostat, UN and UNICEF - 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, age (different groupings), residence (different territorial levels), citizenship and country of birth.

Data completeness - rate

Not applicable

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

Recalculations of the population at the end of reference year and for the previous one are done in the census years.

Data revision - practice

The recalculation of population is based on the census results and the respective calculations of the natural and migration growth for the reference year, received form the current demographic statistics.

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 date

Time lag - final results

4 months after the reference date

Punctuality

Data is released according to the terms.

Punctuality - delivery and publication

Not applicable

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

since 2000

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;

· Booklet Bulgaria.

On-line database

Data on population are available to all users of the NSI website under the heading Population (Demography, Migration and Projections): http://www.nsi.bg/en/node/6701

Information system Infostat: https://infostat.nsi.bg/infostat/pages/module.jsf?x_2=80 (Population) and https://infostat.nsi.bg/infostat/pages/module.jsf?x_2=122 (Population projections)

Data tables - consultations

Not applicable

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

Not applicable

Documentation on methodology

· Methodology on population and demographic processes: http://www.nsi.bg/sites/default/files/files/metadata/Pop_6_Metodology_population_en.pdf;

· Methodology on population projections.

Metadata completeness – rate

100%

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
Metadata Structure Definition in SDMX 2.1: ESQRS_MSD+BNSI+2.0+SDMX.2.1.xml
Metadata Structure Definition in SDMX 2.0: ESQRS_MSD+BNSI+2.0+SDMX.2.0.xml
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