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Population in Papua New Guinea compared to Sao Tome and Principe: Trends, Charts, Rankings

Updated on by Georank team

The latest officially reported population of Papua New Guinea was 10,576,502 in 2024 vs 235,536 people in Sao Tome and Principe in 2024. In 2026, based on the adjusted UN estimation, the current Papua New Guinea's population is 11,002,753 people compared to 246,362 in Sao Tome and Principe.

Population statistics:

  • Papua New Guinea's population is 44.7 times bigger than Sao Tome and Principe's.
  • Papua New Guinea is ranked the 89th most populous country in the world, while Sao Tome and Principe is the 176th.
  • The countries together account for 0.14% of the world: 0.13% for Papua New Guinea vs 0.003% for Sao Tome and Principe.
  • For the last 10 years, Papua New Guinea has had an average growth rate of +2.23% per year vs +1.82% in Sao Tome and Principe.
  • Since 2006, the population of Papua New Guinea has increased from 6.75M people to 11M (63.1% growth), while Sao Tome and Principe has grown from 166K to 246K (48.7% growth).

Papua New Guinea vs Sao Tome and Principe: population by year and forecast

Papua New Guinea
Factual

Projection
Sao Tome and Principe
Factual

Projection
1x
Year Population
Papua New Guinea Sao Tome
2100 18,802,138 538,729
2099 18,790,040 537,330
2098 18,776,265 535,787
2097 18,758,897 534,124
2096 18,737,707 532,353
2095 18,714,219 530,576
2094 18,687,257 528,656
2093 18,658,233 526,643
2092 18,625,772 524,507
2091 18,590,001 522,325
2090 18,549,501 519,999
2089 18,510,463 517,612
2088 18,468,827 515,098
2087 18,424,378 512,568
2086 18,376,043 510,018
2085 18,325,641 507,340
2084 18,274,394 504,584
2083 18,218,709 501,679
2082 18,163,177 498,722
2081 18,104,285 495,689
2080 18,039,008 492,482
2079 17,975,778 489,244
2078 17,908,670 485,930
2077 17,840,781 482,450
2076 17,771,791 478,942
2075 17,699,428 475,380
2074 17,625,044 471,763
2073 17,548,128 468,114
2072 17,466,649 464,348
2071 17,381,598 460,509
2070 17,295,105 456,552
2069 17,205,503 452,449
2068 17,112,154 448,367
2067 17,015,090 444,152
2066 16,915,436 439,833
2065 16,812,946 435,561
2064 16,708,669 431,126
2063 16,604,296 426,703
2062 16,497,292 422,184
2061 16,386,905 417,686
2060 16,270,535 413,117
2059 16,152,614 408,577
2058 16,032,684 404,024
2057 15,909,649 399,413
2056 15,784,519 394,844
2055 15,656,542 390,153
2054 15,523,143 385,468
2053 15,389,244 380,737
2052 15,250,715 376,015
2051 15,110,389 371,194
2050 14,968,530 366,397
2049 14,821,865 361,591
2048 14,673,459 356,742
2047 14,522,926 351,861
2046 14,370,120 346,888
2045 14,213,585 341,838
2044 14,056,036 336,792
2043 13,897,765 331,713
2042 13,738,690 326,652
2041 13,577,382 321,594
2040 13,413,396 316,457
2039 13,247,486 311,279
2038 13,079,352 306,071
2037 12,909,735 300,875
2036 12,738,223 295,624
2035 12,566,543 290,400
2034 12,392,476 285,183
2033 12,218,246 279,990
2032 12,042,345 274,835
2031 11,865,316 269,740
2030 11,685,599 264,723
2029 11,504,890 259,705
2028 11,322,573 254,751
2027 11,138,409 249,860
2026 10,952,454 245,066
2025 10,765,048 240,286
2024 10,576,502 235,536
2023 10,389,635 230,871
2022 10,203,169 226,305
2021 10,012,896 221,961
2020 9,815,746 217,435
2019 9,609,010 213,392
2018 9,394,513 210,187
2017 9,178,714 206,970
2016 8,961,718 203,689
2015 8,743,246 200,291
2014 8,523,441 196,767
2013 8,302,698 193,148
2012 8,081,390 189,439
2011 7,859,346 185,649
2010 7,633,523 181,802
2009 7,406,438 177,853
2008 7,183,002 173,793
2007 6,963,345 169,700
2006 6,747,720 165,638
2005 6,535,905 161,639
2004 6,328,041 157,705
2003 6,123,997 153,814
2002 5,924,003 149,922
2001 5,728,435 146,375
2000 5,537,064 144,018
1999 5,349,333 142,442
1998 5,166,390 140,751
1997 4,987,883 138,922
1996 4,813,361 136,962
1995 4,644,278 134,895
1994 4,480,208 132,732
1993 4,320,872 130,467
1992 4,166,699 128,110
1991 4,021,837 125,697
1990 3,896,481 122,980
1989 3,796,078 119,979
1988 3,711,880 116,939
1987 3,632,543 113,919
1986 3,554,793 111,150
1985 3,478,936 108,658
1984 3,405,198 106,394
1983 3,333,633 104,380
1982 3,264,291 102,508
1981 3,197,019 100,615
1980 3,131,512 98,544
1979 3,067,341 96,252
1978 3,003,714 93,794
1977 2,940,327 91,301
1976 2,877,327 88,922
1975 2,814,820 86,708
1974 2,752,671 84,672
1973 2,690,629 82,798
1972 2,628,432 81,041
1971 2,566,421 79,330
1970 2,505,628 77,626
1969 2,446,927 76,083
1968 2,390,803 74,765
1967 2,337,532 73,596
1966 2,285,774 72,576
1965 2,235,820 71,680
1964 2,188,325 70,865
1963 2,141,376 70,112
1962 2,093,919 69,403
1961 2,046,127 68,707
1960 1,995,110 68,012

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/papua-new-guinea/sao-tome-and-principe | CC BY

From 2006 to 2016, the population of Papua New Guinea increased by 2,213,998 people (a 32.8% growth), while Sao Tome and Principe gained 38,051 people (a 23% growth).

For the next 10 years, from 2016 to 2026, Papua New Guinea gained 2,041,035 people (a 22.8% growth), while Sao Tome and Principe's population increased by 42,673 people (a 21% growth).

Papua New Guinea was ranked 100th most populous country in 2006 and is 89th in 2026. Sao Tome and Principe was ranked 178th in 2006 and ranked 176th now.

The UN's World Population Prospects forecasts that in 24 years (in 2050) Papua New Guinea's population will grow by 36% to 14,968,530 people with a rank change from 89th to 85th. The population of Sao Tome and Principe will increase by 48.7% to 366,397 people and rank change from 176th to 175th.

Papua New Guinea is projected to reach its peak in 2100 at 18.8M people compared to the peak of 539K people in 2100 for Sao Tome and Principe.

Population growth rate by year

Papua New Guinea
Factual

Projection
Sao Tome and Principe
Factual

Projection
1x
Year Growth rate
Papua New Guinea Sao Tome
2100 0.06% 0.26%
2099 0.07% 0.29%
2098 0.09% 0.31%
2097 0.11% 0.33%
2096 0.13% 0.33%
2095 0.14% 0.36%
2094 0.16% 0.38%
2093 0.17% 0.41%
2092 0.19% 0.42%
2091 0.22% 0.45%
2090 0.21% 0.46%
2089 0.23% 0.49%
2088 0.24% 0.49%
2087 0.26% 0.5%
2086 0.28% 0.53%
2085 0.28% 0.55%
2084 0.31% 0.58%
2083 0.31% 0.59%
2082 0.33% 0.61%
2081 0.36% 0.65%
2080 0.35% 0.66%
2079 0.37% 0.68%
2078 0.38% 0.72%
2077 0.39% 0.73%
2076 0.41% 0.75%
2075 0.42% 0.77%
2074 0.44% 0.78%
2073 0.47% 0.81%
2072 0.49% 0.83%
2071 0.5% 0.87%
2070 0.52% 0.91%
2069 0.55% 0.91%
2068 0.57% 0.95%
2067 0.59% 0.98%
2066 0.61% 0.98%
2065 0.62% 1.03%
2064 0.63% 1.04%
2063 0.65% 1.07%
2062 0.67% 1.08%
2061 0.72% 1.11%
2060 0.73% 1.11%
2059 0.75% 1.13%
2058 0.77% 1.15%
2057 0.79% 1.16%
2056 0.82% 1.2%
2055 0.86% 1.22%
2054 0.87% 1.24%
2053 0.91% 1.26%
2052 0.93% 1.3%
2051 0.95% 1.31%
2050 0.99% 1.33%
2049 1.01% 1.36%
2048 1.04% 1.39%
2047 1.06% 1.43%
2046 1.1% 1.48%
2045 1.12% 1.5%
2044 1.14% 1.53%
2043 1.16% 1.55%
2042 1.19% 1.57%
2041 1.22% 1.62%
2040 1.25% 1.66%
2039 1.29% 1.7%
2038 1.31% 1.73%
2037 1.35% 1.78%
2036 1.37% 1.8%
2035 1.4% 1.83%
2034 1.43% 1.85%
2033 1.46% 1.88%
2032 1.49% 1.89%
2031 1.54% 1.9%
2030 1.57% 1.93%
2029 1.61% 1.94%
2028 1.65% 1.96%
2027 1.7% 1.96%
2026 1.74% 1.99%
2025 1.78% 2.02%
2024 1.8% 2.02%
2023 1.83% 2.02%
2022 1.9% 1.96%
2021 2.01% 2.08%
2020 2.15% 1.89%
2019 2.28% 1.52%
2018 2.35% 1.55%
2017 2.42% 1.61%
2016 2.5% 1.7%
2015 2.58% 1.79%
2014 2.66% 1.87%
2013 2.74% 1.96%
2012 2.83% 2.04%
2011 2.96% 2.12%
2010 3.07% 2.22%
2009 3.11% 2.34%
2008 3.15% 2.41%
2007 3.2% 2.45%
2006 3.24% 2.47%
2005 3.28% 2.49%
2004 3.33% 2.53%
2003 3.38% 2.6%
2002 3.41% 2.42%
2001 3.46% 1.64%
2000 3.51% 1.11%
1999 3.54% 1.2%
1998 3.58% 1.32%
1997 3.63% 1.43%
1996 3.64% 1.53%
1995 3.66% 1.63%
1994 3.69% 1.74%
1993 3.7% 1.84%
1992 3.6% 1.92%
1991 3.22% 2.21%
1990 2.64% 2.5%
1989 2.27% 2.6%
1988 2.18% 2.65%
1987 2.19% 2.49%
1986 2.18% 2.29%
1985 2.17% 2.13%
1984 2.15% 1.93%
1983 2.12% 1.83%
1982 2.1% 1.88%
1981 2.09% 2.1%
1980 2.09% 2.38%
1979 2.12% 2.62%
1978 2.16% 2.73%
1977 2.19% 2.68%
1976 2.22% 2.55%
1975 2.26% 2.4%
1974 2.31% 2.26%
1973 2.37% 2.17%
1972 2.42% 2.16%
1971 2.43% 2.2%
1970 2.4% 2.03%
1969 2.35% 1.76%
1968 2.28% 1.59%
1967 2.26% 1.41%
1966 2.23% 1.25%
1965 2.17% 1.15%
1964 2.19% 1.07%
1963 2.27% 1.02%
1962 2.34% 1.01%
1961 2.56% 1.02%

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/papua-new-guinea/sao-tome-and-principe | CC BY

In 2024, the population of Papua New Guinea grew by 1.8%, while Sao Tome and Principe's population grew by 2.02%.

Live population counters

Papua New Guinea Sao Tome
Current population
11002753
246362
Population rank 89/197 176/197
Percent of world population 0.13% 0.003%
One net population change
2.81 minutes
1.88 hours
One birth every
2.06 minutes
1.35 hours
One death every
7.76 minutes
6.81 hours
Daily growth/decline +512 +13
Annual growth/decline +186,867 +4,665
Annual growth/decline rate +1.8% +2.02%
Population growth rate rank 59/197 49/197
One migration net change every
1.29 days
13.5 hours
Annual migration change -284 -650
Net migration rank 87/196 90/196
Foreign-born residents 31,171 1,955
Foreign-born residents rank 163/195 194/195
Foreign-born share of population 0.3% 0.8%
Foreign-born share rank 183/195 162/195

Natural population change vs migration

Papua New Guinea
Natural

Migration
Sao Tome and Principe
Natural

Migration
1x
Year Population change
Papua New Guinea Sao Tome
Natural Migration Natural Migration
2025 - -284 - -650
2024 - -707 - -604
2023 187,637 -787 5,221 -592
2022 186,861 -787 5,102 -592
2021 183,766 10,703 4,954 -782
2020 189,130 10,703 4,874 0
2019 190,662 22,978 4,932 -1,716
2018 190,662 24,684 4,957 -1,757
2017 189,715 26,513 5,007 -1,779
2016 189,281 28,473 5,125 -1,793
2015 188,600 30,580 5,269 -1,809
2014 187,592 32,840 5,381 -1,801
2013 185,790 35,280 5,449 -1,787
2012 183,658 37,893 5,501 -1,739
2011 181,842 40,690 5,445 -1,616
2010 178,998 50,106 5,391 -1,529
2009 175,421 49,647 5,349 -1,328
2008 172,823 48,985 5,297 -1,203
2007 169,306 48,203 5,226 -1,127
2006 166,540 47,191 5,057 -1,031
2005 163,888 46,014 4,897 -941
2004 161,023 44,811 4,810 -894
2003 158,611 43,639 4,702 -816
2002 155,091 42,657 4,591 -690
2001 151,431 41,962 4,471 -1,289
2000 147,496 41,855 4,334 -2,798
1999 143,592 42,519 4,221 -2,594
1998 136,677 43,091 4,120 -2,364
1997 134,458 42,787 4,041 -2,153
1996 129,802 41,994 3,993 -1,974
1995 125,410 40,962 3,948 -1,829
1994 122,113 39,669 3,860 -1,644
1993 118,668 38,220 3,841 -1,527
1992 114,818 36,622 3,822 -1,432
1991 111,453 26,830 3,801 -1,362
1990 110,033 2,398 3,719 -727
1989 108,199 -19,824 3,576 -571
1988 106,256 -26,232 3,544 -465
1987 104,367 -25,720 3,440 -470
1986 102,346 -25,495 3,180 -614
1985 100,333 -25,470 3,242 -828
1984 98,103 -25,487 3,163 -1,041
1983 95,982 -25,465 3,100 -1,203
1982 93,522 -25,355 3,047 -1,203
1981 91,767 -25,383 3,015 -1,067
1980 90,266 -25,638 2,965 -770
1979 89,330 -25,618 2,893 -491
1978 88,747 -25,208 2,800 -279
1977 87,954 -24,722 2,705 -255
1976 86,965 -24,198 2,608 -302
1975 85,809 -23,562 2,515 -392
1974 84,829 -22,771 2,422 -474
1973 83,821 -21,803 2,329 -525
1972 82,672 -20,303 2,232 -517
1971 80,599 -18,945 2,127 -430
1970 78,712 -18,773 1,980 -279
1969 76,454 -18,994 1,862 -469
1968 73,983 -19,188 1,767 -520
1967 71,519 -19,767 1,693 -606
1966 69,206 -17,454 1,642 -688
1965 66,693 -18,532 1,611 -765
1964 64,558 -17,730 1,600 -819
1963 62,260 -15,189 1,609 -886
1962 59,974 -12,141 1,625 -927
1961 58,151 -10,409 1,657 -960
1960 56,326 -2,034 1,547 -860

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

GeoRank.org/population/papua-new-guinea/sao-tome-and-principe | CC BY

Over the last 10 years, 91% of the population change in Papua New Guinea is from natural causes (a gain of 1,883,906 people) and 8.98% is from migration (a gain of 185,900 people). In Sao Tome and Principe 80.1% is from natural causes (a gain of 50,822 people) and 19.9% is from migration (a loss of 12,621 people).

As of 2024, 31,171 residents or 0.3% of the population were not native-born in Papua New Guinea, compared to 1,955 people or 0.8% in Sao Tome and Principe.

Biggest cities by population

Papua New Guinea
City Population
Port Moresby 317K
Lae 101K
Sao Tome
City Population
Sao Tome 65.5K
Trindade 6.64K

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/papua-new-guinea/sao-tome-and-principe | 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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