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Population in Bulgaria compared to Kazakhstan: Trends, Charts, Rankings

Updated on by Georank

The latest officially reported population of Bulgaria was 6,433,302 in 2025 vs 20,843,754 people in Kazakhstan in 2025. In 2026, based on the adjusted UN estimation, the current Bulgaria's population is 6,390,149 people compared to 21,211,812 in Kazakhstan.

Population statistics:

  • Kazakhstan's population is 3.32 times bigger than Bulgaria's.
  • Bulgaria is ranked the 112th most populous country in the world, while Kazakhstan is the 65th.
  • The countries together account for 0.33% of the world: 0.08% for Bulgaria vs 0.26% for Kazakhstan.
  • For the last 10 years, Bulgaria has had an average growth rate of -0.86% per year vs +1.44% in Kazakhstan.
  • Since 2006, the population of Bulgaria has decreased from 7.6M people to 6.39M (15.9% decline), while Kazakhstan has grown from 16.1M to 21.2M (31.7% growth).

Bulgaria vs Kazakhstan: population by year and forecast

Bulgaria
Factual

Projection
Kazakhstan
Factual

Projection
1x
Year Population
Bulgaria Kazakhstan
2100 3,384,288 33,837,050
2099 3,408,821 33,761,154
2098 3,433,149 33,683,919
2097 3,457,549 33,603,915
2096 3,482,057 33,512,477
2095 3,506,060 33,413,253
2094 3,530,278 33,314,594
2093 3,554,432 33,213,155
2092 3,578,667 33,116,688
2091 3,602,907 33,013,240
2090 3,627,300 32,907,211
2089 3,652,188 32,798,108
2088 3,677,416 32,686,460
2087 3,703,460 32,563,627
2086 3,730,284 32,439,780
2085 3,757,953 32,315,125
2084 3,786,496 32,187,026
2083 3,815,548 32,051,485
2082 3,845,662 31,925,242
2081 3,876,344 31,787,284
2080 3,908,874 31,648,962
2079 3,942,344 31,514,214
2078 3,976,345 31,366,796
2077 4,011,440 31,219,906
2076 4,047,182 31,072,192
2075 4,083,977 30,923,546
2074 4,122,447 30,771,280
2073 4,161,511 30,625,478
2072 4,201,158 30,477,563
2071 4,241,639 30,326,181
2070 4,283,145 30,173,109
2069 4,325,083 30,013,948
2068 4,367,606 29,862,364
2067 4,411,116 29,712,186
2066 4,455,358 29,557,994
2065 4,500,141 29,396,139
2064 4,545,243 29,235,466
2063 4,590,439 29,071,908
2062 4,635,634 28,907,357
2061 4,681,315 28,738,535
2060 4,727,089 28,568,026
2059 4,772,667 28,391,809
2058 4,817,532 28,215,085
2057 4,862,597 28,037,220
2056 4,907,646 27,842,554
2055 4,953,105 27,643,057
2054 4,998,650 27,444,561
2053 5,044,397 27,234,548
2052 5,089,817 27,022,716
2051 5,135,505 26,809,526
2050 5,181,635 26,593,675
2049 5,228,058 26,376,242
2048 5,274,692 26,146,925
2047 5,322,212 25,911,330
2046 5,369,645 25,678,409
2045 5,417,381 25,442,326
2044 5,465,818 25,206,576
2043 5,514,902 24,971,131
2042 5,564,573 24,737,722
2041 5,615,489 24,507,695
2040 5,667,076 24,273,388
2039 5,719,506 24,047,108
2038 5,771,452 23,821,741
2037 5,824,628 23,600,163
2036 5,877,980 23,374,793
2035 5,930,517 23,151,259
2034 5,983,205 22,926,675
2033 6,036,049 22,700,937
2032 6,088,107 22,470,522
2031 6,140,619 22,247,053
2030 6,193,318 22,020,172
2029 6,244,785 21,792,016
2028 6,294,981 21,558,709
2027 6,343,732 21,326,341
2026 6,390,149 21,090,850
2025 6,433,302 20,843,754
2024 6,441,421 20,592,571
2023 6,446,596 20,330,104
2022 6,465,097 20,034,609
2021 6,507,301 19,743,603
2020 6,550,696 19,482,117
2019 6,616,726 19,209,555
2018 6,710,798 18,932,727
2017 6,803,468 18,651,931
2016 6,894,139 18,363,600
2015 6,984,225 18,084,169
2014 7,073,572 17,816,285
2013 7,160,005 17,556,502
2012 7,305,888 17,306,106
2011 7,348,328 17,066,002
2010 7,395,599 16,836,810
2009 7,444,443 16,619,846
2008 7,492,561 16,426,525
2007 7,545,338 16,257,214
2006 7,601,022 16,103,716
2005 7,658,972 15,968,117
2004 7,716,860 15,850,159
2003 7,775,327 15,747,380
2002 7,837,161 15,656,677
2001 8,009,142 15,575,550
2000 8,170,172 15,501,103
1999 8,210,624 15,455,874
1998 8,256,786 15,647,785
1997 8,312,068 16,043,251
1996 8,362,826 16,416,027
1995 8,406,067 16,730,536
1994 8,443,591 17,043,771
1993 8,472,313 17,274,487
1992 8,540,164 17,332,625
1991 8,632,367 17,278,600
1990 8,718,289 17,154,054
1989 8,876,972 16,997,013
1988 8,981,446 16,781,168
1987 8,971,359 16,527,715
1986 8,958,171 16,262,702
1985 8,960,547 16,031,090
1984 8,960,679 15,844,621
1983 8,939,738 15,665,551
1982 8,917,457 15,492,595
1981 8,891,117 15,323,082
1980 8,861,535 15,152,949
1979 8,825,940 14,978,696
1978 8,814,032 14,711,497
1977 8,804,183 14,353,265
1976 8,758,599 13,998,738
1975 8,720,742 13,700,843
1974 8,678,745 13,454,570
1973 8,620,967 13,208,121
1972 8,576,200 12,951,798
1971 8,536,395 12,684,813
1970 8,489,574 12,419,057
1969 8,434,172 12,156,212
1968 8,369,603 11,879,182
1967 8,310,226 11,584,428
1966 8,258,057 11,288,989
1965 8,204,168 10,993,183
1964 8,144,340 10,690,309
1963 8,078,145 10,377,466
1962 8,012,946 10,058,928
1961 7,943,118 9,742,085
1960 7,867,374 9,429,981

Data sources: United Nations | World Population Prospects (2026–2100, retrieved 2026-07-08); World Bank | Health (1960–2025, retrieved 2026-07-08).

GeoRank.org/population/bulgaria/kazakhstan | CC BY

From 2006 to 2016, the population of Bulgaria decreased by 706,883 people (a 9.3% decline), while Kazakhstan gained 2,259,884 people (a 14% growth).

For the next 10 years, from 2016 to 2026, Bulgaria lost 503,990 people (a 7.31% decline), while Kazakhstan's population increased by 2,848,212 people (a 15.5% growth).

Bulgaria was ranked 95th most populous country in 2006 and is 112th in 2026. Kazakhstan was ranked 62nd in 2006 and ranked 65th now.

The UN's World Population Prospects forecasts that in 24 years (in 2050) Bulgaria's population will shrink by 18.9% to 5,181,635 people with a rank change from 112th to 128th. The population of Kazakhstan will increase by 25.4% to 26,593,675 people and rank change from 65th to 64th.

Kazakhstan is projected to reach its peak in 2100 at 33.8M people, while Bulgaria's population already peaked in 1988 at 8.98M people and is projected to decrease to 3.38M people by 2100.

Population growth rate by year

Bulgaria
Factual

Projection
Kazakhstan
Factual

Projection
1x
Year Growth rate
Bulgaria Kazakhstan
2100 -0.72% 0.22%
2099 -0.71% 0.23%
2098 -0.71% 0.24%
2097 -0.7% 0.27%
2096 -0.68% 0.3%
2095 -0.69% 0.3%
2094 -0.68% 0.31%
2093 -0.68% 0.29%
2092 -0.67% 0.31%
2091 -0.67% 0.32%
2090 -0.68% 0.33%
2089 -0.69% 0.34%
2088 -0.7% 0.38%
2087 -0.72% 0.38%
2086 -0.74% 0.39%
2085 -0.75% 0.4%
2084 -0.76% 0.42%
2083 -0.78% 0.4%
2082 -0.79% 0.43%
2081 -0.83% 0.44%
2080 -0.85% 0.43%
2079 -0.86% 0.47%
2078 -0.87% 0.47%
2077 -0.88% 0.48%
2076 -0.9% 0.48%
2075 -0.93% 0.49%
2074 -0.94% 0.48%
2073 -0.94% 0.49%
2072 -0.95% 0.5%
2071 -0.97% 0.51%
2070 -0.97% 0.53%
2069 -0.97% 0.51%
2068 -0.99% 0.51%
2067 -0.99% 0.52%
2066 -1% 0.55%
2065 -0.99% 0.55%
2064 -0.98% 0.56%
2063 -0.97% 0.57%
2062 -0.98% 0.59%
2061 -0.97% 0.6%
2060 -0.95% 0.62%
2059 -0.93% 0.63%
2058 -0.93% 0.63%
2057 -0.92% 0.7%
2056 -0.92% 0.72%
2055 -0.91% 0.72%
2054 -0.91% 0.77%
2053 -0.89% 0.78%
2052 -0.89% 0.8%
2051 -0.89% 0.81%
2050 -0.89% 0.82%
2049 -0.88% 0.88%
2048 -0.89% 0.91%
2047 -0.88% 0.91%
2046 -0.88% 0.93%
2045 -0.89% 0.94%
2044 -0.89% 0.94%
2043 -0.89% 0.94%
2042 -0.91% 0.94%
2041 -0.91% 0.97%
2040 -0.92% 0.94%
2039 -0.9% 0.95%
2038 -0.91% 0.94%
2037 -0.91% 0.96%
2036 -0.89% 0.97%
2035 -0.88% 0.98%
2034 -0.88% 0.99%
2033 -0.86% 1.03%
2032 -0.86% 1%
2031 -0.85% 1.03%
2030 -0.82% 1.05%
2029 -0.8% 1.08%
2028 -0.77% 1.09%
2027 -0.73% 1.12%
2026 -0.67% 1.19%
2025 -0.13% 1.22%
2024 -0.08% 1.29%
2023 -0.29% 1.47%
2022 -0.65% 1.47%
2021 -0.66% 1.34%
2020 -1% 1.42%
2019 -1.4% 1.46%
2018 -1.36% 1.51%
2017 -1.32% 1.57%
2016 -1.29% 1.55%
2015 -1.26% 1.5%
2014 -1.21% 1.48%
2013 -2% 1.45%
2012 -0.58% 1.41%
2011 -0.64% 1.36%
2010 -0.66% 1.31%
2009 -0.64% 1.18%
2008 -0.7% 1.04%
2007 -0.73% 0.95%
2006 -0.76% 0.85%
2005 -0.75% 0.74%
2004 -0.75% 0.65%
2003 -0.79% 0.58%
2002 -2.15% 0.52%
2001 -1.97% 0.48%
2000 -0.49% 0.29%
1999 -0.56% -1.23%
1998 -0.67% -2.46%
1997 -0.61% -2.27%
1996 -0.51% -1.88%
1995 -0.44% -1.84%
1994 -0.34% -1.34%
1993 -0.79% -0.34%
1992 -1.07% 0.31%
1991 -0.99% 0.73%
1990 -1.79% 0.92%
1989 -1.16% 1.29%
1988 0.11% 1.53%
1987 0.15% 1.63%
1986 -0.03% 1.44%
1985 -0.001% 1.18%
1984 0.23% 1.14%
1983 0.25% 1.12%
1982 0.3% 1.11%
1981 0.33% 1.12%
1980 0.4% 1.16%
1979 0.14% 1.82%
1978 0.11% 2.5%
1977 0.52% 2.53%
1976 0.43% 2.17%
1975 0.48% 1.83%
1974 0.67% 1.87%
1973 0.52% 1.98%
1972 0.47% 2.1%
1971 0.55% 2.14%
1970 0.66% 2.16%
1969 0.77% 2.33%
1968 0.71% 2.54%
1967 0.63% 2.62%
1966 0.66% 2.69%
1965 0.73% 2.83%
1964 0.82% 3.01%
1963 0.81% 3.17%
1962 0.88% 3.25%
1961 0.96% 3.31%

Data sources: United Nations | World Population Prospects (2026–2100, retrieved 2026-07-08); World Bank | Health (1961–2025, retrieved 2026-07-08).

GeoRank.org/population/bulgaria/kazakhstan | CC BY

In 2025, the population of Bulgaria declined by 0.13%, while Kazakhstan's population grew by 1.22%.

Live population counters

Bulgaria Kazakhstan
Current population
6390149
21211812
Population rank 112/197 65/197
Percent of world population 0.08% 0.26%
One net population change
1.08 hours
2.1 minutes
One birth every
9.83 minutes
1.31 minutes
One death every
5.23 minutes
3.81 minutes
Daily growth/decline -22 +688
Annual growth/decline -8,119 +251,183
Annual growth/decline rate -0.13% +1.22%
Population growth rate rank 168/197 85/197
One migration net change every
2.97 hours
59.7 minutes
Annual migration change -2,961 -8,834
Net migration rank 106/196 130/196
Foreign-born residents 299,100 2,089,797
Foreign-born residents rank 98/195 36/195
Foreign-born share of population 4.4% 10.1%
Foreign-born share rank 99/195 66/195

Natural population change vs migration

Bulgaria
Natural

Migration
Kazakhstan
Natural

Migration
1x
Year Population change
Bulgaria Kazakhstan
Natural Migration Natural Migration
2025 - -2,961 - -8,834
2024 -47,023 524 264,079 -7,368
2023 -43,837 5,173 273,013 -4,822
2022 -62,065 26,498 277,019 45,755
2021 -90,452 11,756 269,026 -9,804
2020 -65,507 30,167 272,458 -8,716
2019 -46,317 -2,156 278,788 2,594
2018 -46,304 -3,873 278,917 -6,644
2017 -45,583 -6,109 268,066 21,248
2016 -42,744 -9,482 277,878 9,478
2015 -44,699 -4,227 273,523 -2,011
2014 -41,027 -2,180 274,406 -10,170
2013 -37,948 -1,324 259,239 -3,925
2012 -40,183 -26,334 249,987 -4,512
2011 -37,477 -23,360 237,883 -3,160
2010 -34,759 -21,668 230,479 -6,840
2009 -26,800 -19,060 218,036 -7,758
2008 -32,967 -17,595 214,169 -37,796
2007 -37,727 -16,366 188,486 -26,237
2006 -39,526 -15,184 166,480 -21,728
2005 -42,124 -14,435 146,619 -20,171
2004 -40,128 -13,604 132,286 -22,841
2003 -44,319 -13,183 112,137 -16,027
2002 -46,240 -12,735 93,564 -8,272
2001 -44,050 -30,726 84,279 -7,333
2000 -41,668 -26,211 80,699 -8,754
1999 -39,411 -23,846 79,536 -61,031
1998 -52,844 -23,262 85,735 -488,075
1997 -58,185 -22,963 92,778 -481,380
1996 -45,159 -21,520 112,384 -469,331
1995 -42,030 -22,020 140,721 -412,775
1994 -32,086 -20,984 165,631 -520,028
1993 -24,569 -19,973 185,649 -292,682
1992 -18,789 -120,552 204,785 -214,015
1991 -14,675 -119,356 221,581 -104,271
1990 -3,487 -116,817 235,113 -103,336
1989 5,326 -114,705 254,394 -72,096
1988 9,879 215 275,278 -25,892
1987 8,971 357 290,227 -32,724
1986 16,125 1,104 295,818 -23,297
1985 11,649 -19,230 293,834 -103,115
1984 20,610 -1,032 278,485 -96,266
1983 21,455 -1,872 260,471 -84,566
1982 24,077 -1,860 246,983 -76,976
1981 29,341 -1,830 243,652 -74,624
1980 30,129 -2,045 238,977 -67,731
1979 40,599 -872 237,442 -60,198
1978 44,070 -62,769 225,895 131,248
1977 47,543 -11,955 224,284 135,047
1976 56,055 -2,522 221,992 127,735
1975 54,941 -38,071 219,748 26,332
1974 64,223 -1,402 217,668 28,807
1973 57,760 -5,409 215,940 30,467
1972 47,169 -11,296 212,319 53,914
1971 52,925 -7,654 202,450 65,291
1970 61,125 -11,315 191,775 72,000
1969 63,256 -3,204 184,118 77,805
1968 69,468 -132 186,254 105,890
1967 49,861 -420 191,536 105,830
1966 54,504 -144 191,506 101,999
1965 58,249 -1,406 194,470 103,626
1964 66,783 505 208,899 98,761
1963 66,241 500 223,105 94,932
1962 64,104 499 228,177 90,842
1961 75,460 378 228,686 85,981
1960 76,314 -1,112 226,027 83,525

Data sources: World Bank | Health (1960–2025, retrieved 2026-07-08).

GeoRank.org/population/bulgaria/kazakhstan | CC BY

Over the last 10 years, 91.7% of the population change in Bulgaria is from natural causes (a loss of 534,531 people) and 8.28% is from migration (a gain of 48,271 people). In Kazakhstan 98.6% is from natural causes (a gain of 2,732,767 people) and 1.43% is from migration (a gain of 39,710 people).

As of 2024, 299,100 residents or 4.4% of the population were not native-born in Bulgaria, compared to 2,089,797 people or 10.1% in Kazakhstan.

Biggest cities by population

Bulgaria
City Population
Sofia 1.21M
Plovdiv 334K
Varna 323K
Burgas 189K
Stara Zagora 121K
Ruse 120K
Pleven 88.1K
Sliven 77.8K
Dobrich 68.6K
Shumen 66.4K
Kazakhstan
City Population
Almaty 2.23M
Shymkent 1.19M
Nur-Sultan 1.08M
Karaganda 516K
Taraz 418K
Aktobe 388K
Semey 350K
Pavlodar 333K
Oskemen 333K
Atyrau 323K

Compare countries by 7 more topics

Population map with other countries

1x

Data sources: World Bank | Health (1960–2025, retrieved 2026-07-08); United Nations | World Population Prospects (1960–2026, retrieved 2026-07-08); U.S. Census Bureau (1960–2025, retrieved 2026-07-08); Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-07-08).

GeoRank.org/population/bulgaria/kazakhstan | CC BY

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Data sources:

  1. World Bank | Health (1960–2025, retrieved 2026-07-08)
  2. United Nations | World Population Prospects (1960–2100, retrieved 2026-07-08)
  3. U.S. Census Bureau (1960–2025, retrieved 2026-07-08)
  4. Wikidata (2026, retrieved 2026-07-08)
  5. Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-07-08)

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