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Population in Slovenia compared to Tanzania: Trends, Charts, Rankings

Updated on by Georank

The latest officially reported population of Slovenia was 2,130,986 in 2025 vs 70,545,865 people in Tanzania in 2025. In 2026, based on the adjusted UN estimation, the current Slovenia's population is 2,128,778 people compared to 73,639,263 in Tanzania.

Population statistics:

  • Tanzania's population is 34.6 times bigger than Slovenia's.
  • Slovenia is ranked the 147th most populous country in the world, while Tanzania is the 20th.
  • The countries together account for 0.91% of the world: 0.03% for Slovenia vs 0.89% for Tanzania.
  • For the last 10 years, Slovenia has had an average growth rate of +0.3% per year vs +3.11% in Tanzania.
  • Since 2006, the population of Slovenia has increased from 2.01M people to 2.13M (6.07% growth), while Tanzania has grown from 40.3M to 73.6M (82.8% growth).

Slovenia vs Tanzania: population by year and forecast

Slovenia
Factual

Projection
Tanzania
Factual

Projection
1x
Year Population
Slovenia Tanzania
2100 1,644,125 265,471,550
2099 1,648,345 263,137,702
2098 1,652,436 260,784,676
2097 1,656,808 258,387,890
2096 1,661,055 255,972,277
2095 1,665,286 253,543,248
2094 1,669,464 251,095,452
2093 1,673,724 248,605,184
2092 1,677,938 246,083,651
2091 1,682,129 243,533,968
2090 1,686,674 240,979,094
2089 1,691,063 238,393,867
2088 1,695,484 235,775,056
2087 1,700,115 233,145,231
2086 1,705,042 230,474,072
2085 1,709,916 227,778,580
2084 1,714,895 225,090,075
2083 1,720,145 222,400,079
2082 1,725,470 219,697,321
2081 1,731,075 216,974,796
2080 1,737,192 214,235,505
2079 1,743,318 211,466,096
2078 1,749,967 208,688,171
2077 1,756,612 205,898,494
2076 1,763,483 203,086,766
2075 1,770,727 200,278,383
2074 1,778,405 197,449,196
2073 1,786,591 194,624,081
2072 1,794,570 191,805,820
2071 1,802,890 188,974,004
2070 1,811,432 186,134,634
2069 1,820,576 183,293,747
2068 1,829,837 180,458,385
2067 1,838,874 177,622,538
2066 1,848,063 174,786,430
2065 1,857,701 171,897,059
2064 1,867,621 169,048,435
2063 1,877,265 166,202,091
2062 1,886,945 163,354,473
2061 1,896,873 160,521,858
2060 1,907,096 157,707,240
2059 1,917,040 154,905,240
2058 1,926,374 152,106,040
2057 1,936,340 149,311,257
2056 1,945,710 146,505,507
2055 1,955,123 143,722,840
2054 1,964,235 140,970,467
2053 1,972,942 138,249,490
2052 1,981,547 135,540,803
2051 1,989,616 132,838,721
2050 1,997,469 130,145,345
2049 2,004,847 127,483,126
2048 2,011,668 124,809,212
2047 2,018,540 122,146,647
2046 2,025,170 119,511,124
2045 2,031,795 116,903,642
2044 2,038,314 114,318,843
2043 2,044,630 111,765,580
2042 2,050,809 109,231,423
2041 2,056,524 106,738,458
2040 2,061,772 104,262,479
2039 2,067,224 101,804,600
2038 2,072,439 99,370,760
2037 2,078,235 96,974,485
2036 2,083,743 94,592,848
2035 2,089,024 92,248,476
2034 2,093,994 89,920,872
2033 2,099,177 87,646,627
2032 2,104,208 85,401,853
2031 2,109,288 83,172,579
2030 2,114,024 80,989,443
2029 2,118,491 78,830,947
2028 2,122,680 76,723,335
2027 2,125,958 74,639,948
2026 2,128,778 72,582,361
2025 2,130,986 70,545,865
2024 2,127,400 68,560,157
2023 2,120,461 66,617,606
2022 2,112,076 64,711,821
2021 2,108,079 62,830,412
2020 2,102,419 60,972,798
2019 2,088,385 59,174,891
2018 2,073,894 57,437,145
2017 2,066,388 55,652,890
2016 2,065,042 53,824,013
2015 2,063,531 52,020,962
2014 2,061,980 50,351,512
2013 2,059,953 48,824,128
2012 2,057,159 47,374,260
2011 2,052,843 46,029,367
2010 2,048,583 44,758,488
2009 2,039,669 43,633,982
2008 2,021,316 42,570,728
2007 2,018,122 41,435,512
2006 2,006,868 40,294,902
2005 2,000,474 39,182,076
2004 1,997,012 38,109,668
2003 1,995,733 37,089,555
2002 1,994,530 36,121,304
2001 1,992,060 35,198,299
2000 1,988,925 34,260,139
1999 1,983,045 33,300,330
1998 1,981,629 32,420,458
1997 1,985,956 31,578,089
1996 1,988,628 30,945,762
1995 1,989,872 30,383,497
1994 1,989,443 29,442,356
1993 1,991,746 28,332,692
1992 1,996,498 27,457,588
1991 1,999,429 26,780,436
1990 1,998,161 26,110,207
1989 1,996,351 25,438,759
1988 1,995,196 24,769,686
1987 1,989,776 24,030,378
1986 1,965,964 23,258,959
1985 1,941,641 22,501,693
1984 1,932,154 21,779,066
1983 1,922,321 21,079,874
1982 1,910,334 20,398,571
1981 1,906,531 19,784,703
1980 1,901,315 19,189,769
1979 1,882,599 18,592,038
1978 1,862,548 17,976,566
1977 1,842,377 17,352,929
1976 1,820,249 16,736,211
1975 1,793,581 16,138,361
1974 1,776,132 15,561,630
1973 1,766,697 15,010,101
1972 1,752,233 14,479,308
1971 1,738,335 13,971,451
1970 1,724,891 13,492,677
1969 1,713,874 13,036,700
1968 1,704,546 12,602,076
1967 1,689,528 12,200,109
1966 1,669,905 11,827,459
1965 1,649,160 11,470,728
1964 1,632,114 11,127,826
1963 1,616,971 10,799,528
1962 1,603,649 10,487,756
1961 1,594,131 10,187,886
1960 1,584,720 9,901,419

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/slovenia/tanzania | CC BY

From 2006 to 2016, the population of Slovenia increased by 58,174 people (a 2.9% growth), while Tanzania gained 13,529,111 people (a 33.6% growth).

For the next 10 years, from 2016 to 2026, Slovenia gained 63,736 people (a 3.09% growth), while Tanzania's population increased by 19,815,250 people (a 36.8% growth).

Slovenia was ranked 141st most populous country in 2006 and is 147th in 2026. Tanzania was ranked 30th in 2006 and ranked 20th now.

The UN's World Population Prospects forecasts that in 24 years (in 2050) Slovenia's population will shrink by 6.17% to 1,997,469 people and will still be ranked 147th. The population of Tanzania will increase by 76.7% to 130,145,345 people and rank change from 20th to 15th.

Tanzania is projected to reach its peak in 2100 at 265M people, while Slovenia's population already peaked in 2025 at 2.13M people and is projected to decrease to 1.64M people by 2100.

Population growth rate by year

Slovenia
Factual

Projection
Tanzania
Factual

Projection
1x
Year Growth rate
Slovenia Tanzania
2100 -0.26% 0.89%
2099 -0.25% 0.9%
2098 -0.26% 0.93%
2097 -0.26% 0.94%
2096 -0.25% 0.96%
2095 -0.25% 0.97%
2094 -0.25% 1%
2093 -0.25% 1.02%
2092 -0.25% 1.05%
2091 -0.27% 1.06%
2090 -0.26% 1.08%
2089 -0.26% 1.11%
2088 -0.27% 1.13%
2087 -0.29% 1.16%
2086 -0.29% 1.18%
2085 -0.29% 1.19%
2084 -0.31% 1.21%
2083 -0.31% 1.23%
2082 -0.32% 1.25%
2081 -0.35% 1.28%
2080 -0.35% 1.31%
2079 -0.38% 1.33%
2078 -0.38% 1.35%
2077 -0.39% 1.38%
2076 -0.41% 1.4%
2075 -0.43% 1.43%
2074 -0.46% 1.45%
2073 -0.44% 1.47%
2072 -0.46% 1.5%
2071 -0.47% 1.53%
2070 -0.5% 1.55%
2069 -0.51% 1.57%
2068 -0.49% 1.6%
2067 -0.5% 1.62%
2066 -0.52% 1.68%
2065 -0.53% 1.69%
2064 -0.51% 1.71%
2063 -0.51% 1.74%
2062 -0.52% 1.76%
2061 -0.54% 1.78%
2060 -0.52% 1.81%
2059 -0.48% 1.84%
2058 -0.51% 1.87%
2057 -0.48% 1.92%
2056 -0.48% 1.94%
2055 -0.46% 1.95%
2054 -0.44% 1.97%
2053 -0.43% 2%
2052 -0.41% 2.03%
2051 -0.39% 2.07%
2050 -0.37% 2.09%
2049 -0.34% 2.14%
2048 -0.34% 2.18%
2047 -0.33% 2.21%
2046 -0.33% 2.23%
2045 -0.32% 2.26%
2044 -0.31% 2.28%
2043 -0.3% 2.32%
2042 -0.28% 2.34%
2041 -0.25% 2.37%
2040 -0.26% 2.41%
2039 -0.25% 2.45%
2038 -0.28% 2.47%
2037 -0.26% 2.52%
2036 -0.25% 2.54%
2035 -0.24% 2.59%
2034 -0.25% 2.59%
2033 -0.24% 2.63%
2032 -0.24% 2.68%
2031 -0.22% 2.7%
2030 -0.21% 2.74%
2029 -0.2% 2.75%
2028 -0.15% 2.79%
2027 -0.13% 2.83%
2026 -0.1% 2.89%
2025 0.17% 2.9%
2024 0.33% 2.92%
2023 0.4% 2.95%
2022 0.19% 2.99%
2021 0.27% 3.05%
2020 0.67% 3.04%
2019 0.7% 3.03%
2018 0.36% 3.21%
2017 0.07% 3.4%
2016 0.07% 3.47%
2015 0.08% 3.32%
2014 0.1% 3.13%
2013 0.14% 3.06%
2012 0.21% 2.92%
2011 0.21% 2.84%
2010 0.44% 2.58%
2009 0.91% 2.5%
2008 0.16% 2.74%
2007 0.56% 2.83%
2006 0.32% 2.84%
2005 0.17% 2.81%
2004 0.06% 2.75%
2003 0.06% 2.68%
2002 0.12% 2.62%
2001 0.16% 2.74%
2000 0.3% 2.88%
1999 0.07% 2.71%
1998 -0.22% 2.67%
1997 -0.13% 2.04%
1996 -0.06% 1.85%
1995 0.02% 3.2%
1994 -0.12% 3.92%
1993 -0.24% 3.19%
1992 -0.15% 2.53%
1991 0.06% 2.57%
1990 0.09% 2.64%
1989 0.06% 2.7%
1988 0.27% 3.08%
1987 1.21% 3.32%
1986 1.25% 3.37%
1985 0.49% 3.32%
1984 0.51% 3.32%
1983 0.63% 3.34%
1982 0.2% 3.1%
1981 0.27% 3.1%
1980 0.99% 3.21%
1979 1.08% 3.42%
1978 1.09% 3.59%
1977 1.22% 3.68%
1976 1.49% 3.7%
1975 0.98% 3.71%
1974 0.53% 3.67%
1973 0.83% 3.67%
1972 0.8% 3.63%
1971 0.78% 3.55%
1970 0.64% 3.5%
1969 0.55% 3.45%
1968 0.89% 3.29%
1967 1.18% 3.15%
1966 1.26% 3.11%
1965 1.04% 3.08%
1964 0.94% 3.04%
1963 0.83% 2.97%
1962 0.6% 2.94%
1961 0.59% 2.89%

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/slovenia/tanzania | CC BY

In 2025, the population of Slovenia grew by 0.17%, while Tanzania's population grew by 2.9%.

Live population counters

Slovenia Tanzania
Current population
2128778
73639263
Population rank 147/197 20/197
Percent of world population 0.03% 0.89%
One net population change
2.45 hours
15.9 seconds
One birth every
31.3 minutes
13.2 seconds
One death every
24.5 minutes
1.34 minutes
Daily growth/decline +10 +5,440
Annual growth/decline +3,586 +1,985,708
Annual growth/decline rate +0.17% +2.9%
Population growth rate rank 153/197 16/197
One migration net change every
3.24 hours
41.4 minutes
Annual migration change +2,711 -12,730
Net migration rank 55/196 139/196
Foreign-born residents 315,122 462,371
Foreign-born residents rank 97/195 83/195
Foreign-born share of population 14.9% 0.7%
Foreign-born share rank 44/195 167/195

Natural population change vs migration

Slovenia
Natural

Migration
Tanzania
Natural

Migration
1x
Year Population change
Slovenia Tanzania
Natural Migration Natural Migration
2025 - 2,711 - -12,730
2024 -4,680 3,319 1,993,730 -29,865
2023 -4,665 5,339 1,960,623 -39,388
2022 -4,858 9,014 1,927,960 -37,557
2021 -4,216 2,477 1,880,137 -7,704
2020 -5,256 28,514 1,861,377 -18,587
2019 -1,254 16,352 1,816,669 -63,602
2018 -1,037 14,640 1,777,852 -55,444
2017 -207 1,359 1,726,909 119,142
2016 826 1,195 1,659,502 152,194
2015 826 712 1,592,882 201,495
2014 2,268 -70 1,565,630 -21,083
2013 1,648 639 1,509,008 1,241
2012 2,674 1,117 1,439,325 -49,875
2011 3,285 2,190 1,384,886 -84,546
2010 3,687 -410 1,363,477 -122,020
2009 3,060 11,594 1,332,015 -324,478
2008 3,437 2,971 1,303,728 -184,816
2007 1,211 14,191 1,278,285 -126,793
2006 602 6,081 1,257,927 -128,231
2005 -600 6,317 1,224,165 -128,251
2004 -599 1,759 1,175,379 -126,490
2003 -1,996 3,218 1,118,435 -127,101
2002 -1,197 1,975 1,063,195 -118,047
2001 -996 4,527 1,026,242 -125,375
2000 -398 3,124 985,185 -9,701
1999 -1,388 10,291 948,659 -4,489
1998 -1,189 -5,280 920,806 -105,184
1997 -794 -1,298 882,544 -13,400
1996 0 -2,456 868,524 -473,007
1995 0 356 838,980 -109,971
1994 199 -153 803,953 349,348
1993 -199 -4,641 778,044 288,004
1992 598 -5,547 767,961 -83,825
1991 2,199 -3,325 762,011 -91,851
1990 3,797 618 750,825 -80,529
1989 4,592 -2,718 743,854 -71,268
1988 5,986 -3,023 736,551 -71,012
1987 5,771 2,972 718,580 94,498
1986 6,094 32,700 705,677 24,101
1985 6,213 3,404 697,867 86,864
1984 5,990 3,280 687,435 -26,938
1983 6,343 3,613 679,720 58,161
1982 9,170 -8,695 662,627 -37,883
1981 10,485 -5,016 645,496 -42,485
1980 11,027 3,128 629,444 -42,588
1979 12,614 2,107 613,388 -4,792
1978 11,920 2,113 595,024 27,307
1977 12,160 2,584 574,938 49,997
1976 12,196 2,226 553,617 54,875
1975 11,658 2,421 533,906 53,290
1974 11,367 3,145 515,152 51,127
1973 11,837 2,175 488,429 48,363
1972 10,513 2,924 467,305 57,489
1971 10,951 2,286 449,014 41,900
1970 10,004 260 427,988 38,635
1969 9,427 685 408,322 37,006
1968 11,250 438 389,467 34,455
1967 13,516 -192 374,763 5,265
1966 15,697 -1,262 360,229 5,049
1965 14,513 -1,421 343,456 4,742
1964 12,567 -349 328,527 9,090
1963 14,068 -180 314,644 4,333
1962 13,150 148 300,663 3,916
1961 14,985 -306 286,839 8,338
1960 12,678 -929 275,814 1,946

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

GeoRank.org/population/slovenia/tanzania | CC BY

Over the last 10 years, 22.8% of the population change in Slovenia is from natural causes (a loss of 24,521 people) and 77.2% is from migration (a gain of 82,921 people). In Tanzania 98.8% is from natural causes (a gain of 18,197,641 people) and 1.2% is from migration (a gain of 220,684 people).

As of 2024, 315,122 residents or 14.9% of the population were not native-born in Slovenia, compared to 462,371 people or 0.7% in Tanzania.

Biggest cities by population

Slovenia
City Population
Ljubljana 284K
Maribor 114K
Kranj 37.6K
Celje 37.1K
Velenje 25.6K
Novo Mesto 24.2K
Nova Gorica 13K
Izola 11.7K
Murska Sobota 11.2K
Piran 3.79K
Tanzania
City Population
Dar es Salaam 4.72M
Zanzibar 710K
Mwanza 706K
Mbeya 542K
Morogoro 471K
Arusha 416K
Tanga 221K
Dodoma 214K
Moshi 145K

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/slovenia/tanzania | 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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