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Population in Bulgaria compared to the Congo: Trends, Charts, Rankings

Updated on by Georank team

The latest officially reported population of Bulgaria was 6,441,421 in 2024 vs 6,332,961 people in the Congo in 2024. In 2026, based on the adjusted UN estimation, the current Bulgaria's population is 6,359,449 people compared to 6,681,829 in the Congo.

Population statistics:

  • The Congo's population is 1.05 times bigger than Bulgaria's.
  • Bulgaria is ranked the 112th most populous country in the world, while the Congo is the 109th.
  • The countries together account for 0.16% of the world: 0.08% for Bulgaria vs 0.08% for the Congo.
  • For the last 10 years, Bulgaria has had an average growth rate of -0.96% per year vs +2.44% in the Congo.
  • Since 2006, the population of Bulgaria has decreased from 7.6M people to 6.36M (16.3% decline), while the Congo has grown from 3.84M to 6.68M (74.1% growth).

Bulgaria vs Congo: population by year and forecast

Bulgaria
Factual

Projection
Congo
Factual

Projection
1x
Year Population
Bulgaria Congo
2100 3,368,029 20,197,393
2099 3,392,444 20,056,338
2098 3,416,655 19,909,990
2097 3,440,938 19,763,169
2096 3,465,328 19,613,556
2095 3,489,216 19,462,505
2094 3,513,318 19,309,823
2093 3,537,356 19,154,254
2092 3,561,475 18,993,517
2091 3,585,597 18,831,137
2090 3,609,873 18,666,035
2089 3,634,642 18,500,705
2088 3,659,749 18,328,408
2087 3,685,668 18,156,542
2086 3,712,363 17,982,556
2085 3,739,898 17,810,599
2084 3,768,305 17,634,115
2083 3,797,217 17,455,922
2082 3,827,186 17,273,447
2081 3,857,721 17,095,916
2080 3,890,095 16,913,187
2079 3,923,403 16,731,545
2078 3,957,241 16,545,390
2077 3,992,168 16,360,458
2076 4,027,738 16,175,508
2075 4,064,356 15,984,378
2074 4,102,642 15,794,071
2073 4,141,518 15,599,735
2072 4,180,975 15,404,494
2071 4,221,261 15,207,921
2070 4,262,568 15,011,471
2069 4,304,304 14,810,543
2068 4,346,623 14,612,051
2067 4,389,924 14,415,033
2066 4,433,953 14,213,222
2065 4,478,521 14,012,829
2064 4,523,406 13,813,071
2063 4,568,385 13,611,733
2062 4,613,363 13,407,155
2061 4,658,825 13,206,406
2060 4,704,379 13,006,970
2059 4,749,738 12,808,144
2058 4,794,388 12,611,185
2057 4,839,236 12,415,316
2056 4,884,068 12,219,298
2055 4,929,309 12,024,601
2054 4,974,635 11,826,644
2053 5,020,162 11,629,783
2052 5,065,364 11,433,645
2051 5,110,833 11,236,927
2050 5,156,741 11,041,020
2049 5,202,941 10,846,652
2048 5,249,351 10,651,879
2047 5,296,642 10,455,019
2046 5,343,848 10,260,138
2045 5,391,354 10,065,444
2044 5,439,559 9,872,742
2043 5,488,407 9,677,498
2042 5,537,839 9,483,953
2041 5,588,510 9,288,673
2040 5,639,850 9,097,986
2039 5,692,028 8,908,556
2038 5,743,725 8,720,599
2037 5,796,645 8,534,256
2036 5,849,741 8,350,011
2035 5,902,025 8,167,940
2034 5,954,460 7,986,915
2033 6,007,050 7,806,956
2032 6,058,858 7,629,621
2031 6,111,118 7,454,630
2030 6,163,564 7,285,238
2029 6,214,784 7,119,031
2028 6,264,738 6,956,345
2027 6,313,255 6,795,830
2026 6,359,449 6,639,560
2025 6,402,394 6,485,440
2024 6,441,421 6,332,961
2023 6,446,596 6,182,885
2022 6,465,097 6,035,104
2021 6,507,301 5,892,183
2020 6,550,696 5,752,791
2019 6,616,726 5,616,661
2018 6,710,798 5,483,118
2017 6,803,468 5,351,011
2016 6,894,139 5,222,536
2015 6,984,225 5,097,581
2014 7,073,572 4,975,880
2013 7,160,005 4,857,099
2012 7,305,888 4,740,450
2011 7,348,328 4,609,724
2010 7,395,599 4,462,290
2009 7,444,443 4,281,219
2008 7,492,561 4,113,517
2007 7,545,338 3,980,430
2006 7,601,022 3,837,409
2005 7,658,972 3,696,393
2004 7,716,860 3,565,554
2003 7,775,327 3,445,753
2002 7,837,161 3,350,771
2001 8,009,142 3,272,537
2000 8,170,172 3,151,345
1999 8,210,624 3,032,874
1998 8,256,786 2,952,061
1997 8,312,068 2,887,862
1996 8,362,826 2,826,785
1995 8,406,067 2,749,461
1994 8,443,591 2,673,144
1993 8,472,313 2,595,124
1992 8,540,164 2,519,465
1991 8,632,367 2,449,229
1990 8,718,289 2,380,560
1989 8,876,972 2,313,558
1988 8,981,446 2,247,653
1987 8,971,359 2,183,473
1986 8,958,171 2,120,602
1985 8,960,547 2,059,311
1984 8,960,679 1,999,528
1983 8,939,738 1,950,321
1982 8,917,457 1,910,430
1981 8,891,117 1,869,759
1980 8,861,535 1,828,985
1979 8,825,940 1,788,524
1978 8,814,032 1,748,089
1977 8,804,183 1,707,568
1976 8,758,599 1,667,225
1975 8,720,742 1,627,032
1974 8,678,745 1,582,301
1973 8,620,967 1,533,680
1972 8,576,200 1,486,468
1971 8,536,395 1,441,039
1970 8,489,574 1,397,638
1969 8,434,172 1,356,182
1968 8,369,603 1,316,519
1967 8,310,226 1,278,691
1966 8,258,057 1,242,534
1965 8,204,168 1,207,880
1964 8,144,340 1,174,816
1963 8,078,145 1,143,263
1962 8,012,946 1,113,175
1961 7,943,118 1,084,389
1960 7,867,374 1,056,732

Data sources: United Nations | World Population Prospects (2025–2100, retrieved 2026-03-10); World Bank | Health (1960–2024, retrieved 2026-04-06).

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

From 2006 to 2016, the population of Bulgaria decreased by 706,883 people (a 9.3% decline), while the Congo gained 1,385,127 people (a 36.1% growth).

For the next 10 years, from 2016 to 2026, Bulgaria lost 534,690 people (a 7.76% decline), while the Congo's population increased by 1,459,293 people (a 27.9% growth).

Bulgaria was ranked 95th most populous country in 2006 and is 112th in 2026. The Congo was ranked 125th in 2006 and ranked 109th now.

The UN's World Population Prospects forecasts that in 24 years (in 2050) Bulgaria's population will shrink by 18.9% to 5,156,741 people with a rank change from 112th to 128th. The population of the Congo will increase by 65.2% to 11,041,020 people and rank change from 109th to 95th.

The Congo is projected to reach its peak in 2100 at 20.2M people, while Bulgaria's population already peaked in 1988 at 8.98M people and is projected to decrease to 3.37M people by 2100.

Population growth rate by year

Bulgaria
Factual

Projection
Congo
Factual

Projection
1x
Year Growth rate
Bulgaria Congo
2100 -0.72% 0.7%
2099 -0.71% 0.74%
2098 -0.71% 0.74%
2097 -0.7% 0.76%
2096 -0.68% 0.78%
2095 -0.69% 0.79%
2094 -0.68% 0.81%
2093 -0.68% 0.85%
2092 -0.67% 0.86%
2091 -0.67% 0.88%
2090 -0.68% 0.89%
2089 -0.69% 0.94%
2088 -0.7% 0.95%
2087 -0.72% 0.97%
2086 -0.74% 0.97%
2085 -0.75% 1%
2084 -0.76% 1.02%
2083 -0.78% 1.06%
2082 -0.79% 1.04%
2081 -0.83% 1.08%
2080 -0.85% 1.09%
2079 -0.86% 1.13%
2078 -0.87% 1.13%
2077 -0.88% 1.14%
2076 -0.9% 1.2%
2075 -0.93% 1.2%
2074 -0.94% 1.25%
2073 -0.94% 1.27%
2072 -0.95% 1.29%
2071 -0.97% 1.31%
2070 -0.97% 1.36%
2069 -0.97% 1.36%
2068 -0.99% 1.37%
2067 -0.99% 1.42%
2066 -1% 1.43%
2065 -0.99% 1.45%
2064 -0.98% 1.48%
2063 -0.97% 1.53%
2062 -0.98% 1.52%
2061 -0.97% 1.53%
2060 -0.95% 1.55%
2059 -0.93% 1.56%
2058 -0.93% 1.58%
2057 -0.92% 1.6%
2056 -0.92% 1.62%
2055 -0.91% 1.67%
2054 -0.91% 1.69%
2053 -0.89% 1.72%
2052 -0.89% 1.75%
2051 -0.89% 1.77%
2050 -0.89% 1.79%
2049 -0.88% 1.83%
2048 -0.89% 1.88%
2047 -0.88% 1.9%
2046 -0.88% 1.93%
2045 -0.89% 1.95%
2044 -0.89% 2.02%
2043 -0.89% 2.04%
2042 -0.91% 2.1%
2041 -0.91% 2.1%
2040 -0.92% 2.13%
2039 -0.9% 2.16%
2038 -0.91% 2.18%
2037 -0.91% 2.21%
2036 -0.89% 2.23%
2035 -0.88% 2.27%
2034 -0.88% 2.31%
2033 -0.86% 2.32%
2032 -0.86% 2.35%
2031 -0.85% 2.33%
2030 -0.82% 2.33%
2029 -0.8% 2.34%
2028 -0.77% 2.36%
2027 -0.73% 2.35%
2026 -0.67% 2.38%
2025 -0.61% 2.41%
2024 -0.08% 2.43%
2023 -0.29% 2.45%
2022 -0.65% 2.43%
2021 -0.66% 2.42%
2020 -1% 2.42%
2019 -1.4% 2.44%
2018 -1.36% 2.47%
2017 -1.32% 2.46%
2016 -1.29% 2.45%
2015 -1.26% 2.45%
2014 -1.21% 2.45%
2013 -2% 2.46%
2012 -0.58% 2.84%
2011 -0.64% 3.3%
2010 -0.66% 4.23%
2009 -0.64% 4.08%
2008 -0.7% 3.34%
2007 -0.73% 3.73%
2006 -0.76% 3.81%
2005 -0.75% 3.67%
2004 -0.75% 3.48%
2003 -0.79% 2.83%
2002 -2.15% 2.39%
2001 -1.97% 3.85%
2000 -0.49% 3.91%
1999 -0.56% 2.74%
1998 -0.67% 2.22%
1997 -0.61% 2.16%
1996 -0.51% 2.81%
1995 -0.44% 2.85%
1994 -0.34% 3.01%
1993 -0.79% 3%
1992 -1.07% 2.87%
1991 -0.99% 2.88%
1990 -1.79% 2.9%
1989 -1.16% 2.93%
1988 0.11% 2.94%
1987 0.15% 2.96%
1986 -0.03% 2.98%
1985 -0.001% 2.99%
1984 0.23% 2.52%
1983 0.25% 2.09%
1982 0.3% 2.18%
1981 0.33% 2.23%
1980 0.4% 2.26%
1979 0.14% 2.31%
1978 0.11% 2.37%
1977 0.52% 2.42%
1976 0.43% 2.47%
1975 0.48% 2.83%
1974 0.67% 3.17%
1973 0.52% 3.18%
1972 0.47% 3.15%
1971 0.55% 3.11%
1970 0.66% 3.06%
1969 0.77% 3.01%
1968 0.71% 2.96%
1967 0.63% 2.91%
1966 0.66% 2.87%
1965 0.73% 2.81%
1964 0.82% 2.76%
1963 0.81% 2.7%
1962 0.88% 2.65%
1961 0.96% 2.62%

Data sources: United Nations | World Population Prospects (2025–2100, retrieved 2026-03-10); World Bank | Health (1961–2024, retrieved 2026-04-06).

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

In 2024, the population of Bulgaria declined by 0.08%, while the Congo's population grew by 2.43%.

Live population counters

Bulgaria Congo
Current population
6359449
6681829
Population rank 112/197 109/197
Percent of world population 0.08% 0.08%
One net population change
1.69 hours
3.5 minutes
One birth every
9.16 minutes
2.78 minutes
One death every
5.19 minutes
13.5 minutes
Daily growth/decline -14 +411
Annual growth/decline -5,175 +150,076
Annual growth/decline rate -0.08% +2.43%
Population growth rate rank 171/197 31/197
One migration net change every
2.97 hours
2.93 hours
Annual migration change -2,961 -2,999
Net migration rank 106/196 108/196
Foreign-born residents 299,100 385,589
Foreign-born residents rank 98/195 91/195
Foreign-born share of population 4.4% 6.1%
Foreign-born share rank 99/195 86/195

Natural population change vs migration

Bulgaria
Natural

Migration
Congo
Natural

Migration
1x
Year Population change
Bulgaria Congo
Natural Migration Natural Migration
2025 - -2,961 - -2,999
2024 - 524 - -2,491
2023 -43,837 5,173 150,486 -995
2022 -62,065 26,498 147,076 -995
2021 -90,452 11,756 144,241 -4,476
2020 -65,507 30,167 143,492 -4,472
2019 -46,317 -2,156 139,513 -6,268
2018 -46,304 -3,873 142,704 -8,856
2017 -45,583 -6,109 141,973 -11,601
2016 -42,744 -9,482 141,358 -14,783
2015 -44,699 -4,227 141,539 -18,207
2014 -41,027 -2,180 141,674 -21,598
2013 -37,948 -1,324 142,080 -24,605
2012 -40,183 -26,334 142,464 -26,643
2011 -37,477 -23,360 140,371 5,262
2010 -34,759 -21,668 136,908 12,318
2009 -26,800 -19,060 126,904 86,014
2008 -32,967 -17,595 120,711 1,774
2007 -37,727 -16,366 112,459 31,239
2006 -39,526 -15,184 106,876 35,475
2005 -42,124 -14,435 101,344 38,337
2004 -40,128 -13,604 96,577 25,412
2003 -44,319 -13,183 91,326 26,280
2002 -46,240 -12,735 88,497 -16,140
2001 -44,050 -30,726 84,876 -764
2000 -41,668 -26,211 78,491 79,780
1999 -39,411 -23,846 76,204 2,470
1998 -52,844 -23,262 72,450 10,500
1997 -58,185 -22,963 66,149 -20,704
1996 -45,159 -21,520 75,628 1,085
1995 -42,030 -22,020 74,189 3,747
1994 -32,086 -20,984 72,857 1,850
1993 -24,569 -19,973 71,119 10,218
1992 -18,789 -120,552 69,973 0
1991 -14,675 -119,356 68,534 1,966
1990 -3,487 -116,817 67,241 -395
1989 5,326 -114,705 65,944 1,214
1988 9,879 215 64,629 22
1987 8,971 357 63,183 525
1986 16,125 1,104 61,669 367
1985 11,649 -19,230 60,359 182
1984 20,610 -1,032 59,028 0
1983 21,455 -1,872 58,120 -18,720
1982 24,077 -1,860 57,036 -16,664
1981 29,341 -1,830 56,603 -15,630
1980 30,129 -2,045 55,550 -14,972
1979 40,599 -872 54,723 -14,378
1978 44,070 -62,769 53,885 -13,356
1977 47,543 -11,955 53,179 -12,673
1976 56,055 -2,522 52,148 -11,971
1975 54,941 -38,071 51,155 -10,944
1974 64,223 -1,402 49,563 -312
1973 57,760 -5,409 48,017 -22
1972 47,169 -11,296 46,427 0
1971 52,925 -7,654 44,431 0
1970 61,125 -11,315 42,374 0
1969 63,256 -3,204 40,532 0
1968 69,468 -132 38,786 0
1967 49,861 -420 36,866 0
1966 54,504 -144 35,452 0
1965 58,249 -1,406 33,865 0
1964 66,783 505 32,270 0
1963 66,241 500 30,832 0
1962 64,104 499 29,342 0
1961 75,460 378 28,220 0
1960 76,314 -1,112 27,094 0

Data sources: World Bank | Health (1960–2025, retrieved 2026-04-06).

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

Over the last 10 years, 92.1% of the population change in Bulgaria is from natural causes (a loss of 528,535 people) and 7.94% is from migration (a gain of 45,567 people). In the Congo 94% is from natural causes (a gain of 1,434,056 people) and 6.04% is from migration (a loss of 92,251 people).

As of 2024, 299,100 residents or 4.4% of the population were not native-born in Bulgaria, compared to 385,589 people or 6.1% in the Congo.

Biggest cities by population

Bulgaria
City Population
Sofia 1.21M
Plovdiv 329K
Varna 319K
Burgas 189K
Stara Zagora 121K
Ruse 121K
Pleven 88.6K
Sliven 78.2K
Dobrich 69.4K
Shumen 66.6K
Congo
City Population
Brazzaville 2.15M
Pointe-Noire 1.42M
Kayes 71.6K
Madingou 36.2K
Gamboma 26.1K
Kinkala 12.1K

Compare countries by 7 more topics

Population map with other countries

1x

Data sources: World Bank | Health (1960–2024, retrieved 2026-04-06); United Nations | World Population Prospects (1960–2026, retrieved 2026-03-10); U.S. Census Bureau (1960–2025, retrieved 2026-02-08); Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-02-20).

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

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Data sources:

  1. World Bank | Health (1960–2025, retrieved 2026-04-06)
  2. United Nations | World Population Prospects (1960–2100, retrieved 2026-03-10)
  3. U.S. Census Bureau (1960–2025, retrieved 2026-02-08)
  4. Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-02-20)
  5. Wikidata (2026, retrieved 2026-02-08)

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