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Population state · Sustained decline

Cook Islands

Oceania · Polynesia · COK · CK

Cook Islands's population reached its series maximum in 1971. The current run began in 2012.

SMALL POPULATION · Full population counts are shown; ratios with unstable small bases are suppressed.
Population state
Sustained decline
current run since 2012 · projected 2024
Fertility
2.02
127 of 237 with a TFR, lowest first
World population rank
226
of 237
Regional population rank
18
of 23 in Oceania
Annual change
−476
48th-largest annual loss in the recordsmall absolute movement
Peak population · 1971 Deaths exceed births · not in this year Working-age peak · 2012 Support ratio · suppressed
ANNUAL COMPONENTS · 2024 PROJECTED

What drives population change?

Births and deaths set natural change. Net migration can reinforce, reduce, or reverse that direction.

Migration contribution Reverses growth

Negative net migration is large enough to reverse natural growth.

Cook Islands, 2024 projected: natural change +26 people, net migration −505, WPP adjustment +3, total population change −476. Negative net migration is large enough to reverse natural growth.

Exact reconciliation: WPP includes a +3-person statistical adjustment. Figures are rounded to whole people.

SOURCE · UN WPP 2024 CHECKS PASSED · DETAILS⌄
Releasewpp2024
RevisionPOP/DB/WPP/Rev.2024/GEN/F01/Rev.1
Vintage2024 Revision, Online Edition
Retrieved2026-06-25T11:25:03+00:00
LicenceCC BY 3.0 IGO
Formulathousands-to-people-v1 · migration-contribution-v1
Transformsite/src/lib/migration-contribution.ts
Raw file SHA-25698e34d9b65b53858cd08a57a566e45050b08093ad85ba5714fe6fbd78055ae6d
Measurement universeOne canonical country or area; annual natural change, net migration, WPP adjustment, and total population change use the same source row.
Reference time2024 projected annual components; estimates run through 2023.
UnitPeople per year.
Evidence status2024 WPP medium-variant projection.
SUSTAINED DECLINE · STATE-SPECIFIC EVIDENCE

Decline over time

13 source years · since 2012 Rank 16 of 29 by streak duration Duration, not severity
CARD 01 · ANNUAL TOTAL POPULATION CHANGE

Annual change through the streak

Each bar is one year’s total population change. View the same evidence as a share of that year’s population or as a count of people.

Births, deaths, net migration, and WPP adjustments are included.
−3.47%
2012–2024 · 13 source years Loss rate is steeper than at the start
Annual change bar chart
Observed through 2023 2024 projected

One discrete bar for each source year from 2012 through 2024. The chart includes total population change from births, deaths, net migration, and WPP adjustments; observed and projected rows are distinguished.

Annual total population change for Cook Islands, 2012 to 2024
YearEvidencePercent of populationPeople
2012observed−0.25%−44
2013observed−0.39%−68
2014observed−0.44%−77
2015observed−0.55%−96
2016observed−0.76%−131
2017observed−2.58%−440
2018observed−2.78%−461
2019observed−2.94%−474
2020observed−3.18%−497
2021observed−2.80%−425
2022observed−3.35%−493
2023observed−3.59%−510
2024projected−3.47%−476
First year−0.25%
Least negative−0.25% · 2012
Most negative−3.59% · 2023
2024−3.47%
CARD 02 · LITERAL SERIES MAXIMUM

Population below peak

Peak population minus the 2024 population, shown in people and as a share of the peak.

34.2%
7,140 people below peak
Population from peak line chart
Observed through 2023 2024 projected Focused scale · peak = 100

Annual total population from the literal series maximum in 1971 through 2024, indexed so the peak equals 100. The focused scale shows the stock path while exact annual populations remain in the table.

Annual total population from the literal peak through 2024
YearEvidencePopulation
1971observed20,869
1972observed20,770
1973observed20,188
1974observed19,558
1975observed18,896
1976observed18,248
1977observed17,910
1978observed17,849
1979observed17,778
1980observed17,697
1981observed17,605
1982observed17,471
1983observed17,279
1984observed17,063
1985observed16,832
1986observed16,602
1987observed16,578
1988observed16,753
1989observed16,931
1990observed17,120
1991observed17,309
1992observed17,471
1993observed17,591
1994observed17,689
1995observed17,781
1996observed17,855
1997observed17,622
1998observed17,079
1999observed16,483
2000observed15,854
2001observed15,235
2002observed14,967
2003observed15,027
2004observed15,078
2005observed15,132
2006observed15,206
2007observed15,495
2008observed15,981
2009observed16,475
2010observed16,976
2011observed17,455
2012observed17,661
2013observed17,605
2014observed17,532
2015observed17,446
2016observed17,332
2017observed17,047
2018observed16,596
2019observed16,129
2020observed15,643
2021observed15,182
2022observed14,723
2023observed14,222
2024projected13,729
Peak population · 1971
20,869
2024 population
13,729

From 20,869 people in 1971 to 13,729 in 2024. The endpoint is projected; the peak year is the literal maximum in the WPP series.

SOURCE · UN WPP 2024 CHECKS PASSED · DETAILS⌄
Releasewpp2024
RevisionPOP/DB/WPP/Rev.2024/GEN/F01/Rev.1
Vintage2024 Revision, Online Edition
Retrieved2026-06-25T11:25:03+00:00
LicenceCC BY 3.0 IGO
Formulaannual-total-change-rate-v1 · population-below-peak-v1 · population-from-peak-v1 · sustained-decline-streak-rank-v1
Transformsite/src/lib/sustained-decline-profile.ts
Raw file SHA-25698e34d9b65b53858cd08a57a566e45050b08093ad85ba5714fe6fbd78055ae6d
Measurement universeDe facto population: all residents in the country or area, regardless of legal status or citizenship; streak rank compares the 29 canonical sustained-decline members only.
Reference timeAnnual source rows from 2012 through 2024; estimates through 2023, then medium-variant projection.
UnitWhole people and annual total change as a percentage of same-year population; the population-path chart indexes the literal peak to 100 while retaining exact annual counts.
Evidence statusprojected 2024 endpoint; observed/projected status is retained for every chart row.
AGE STRUCTURE · 2023
PROJECTED PATH · WPP 2024 MEDIUM VARIANT
YearPopulationAnnual changeFertility
202413,729−4762.02
20509,337−601.78
20808,161+11.71
21007,904−291.68

Values after 2023 are medium-variant projections, not forecasts.

AGE BALANCE · 1950–2100

Youth and older population

Annual share of the population aged under 18 and aged 65+. The crossing shows when the older group first becomes larger in the annual source series.

First annual crossover
2033 · projected
Rule
65+ strictly exceeds under 18

Cook Islands annual age balance from 1950 to 2100. Under-18 population moves from 52.7% in 1950 to 30.1% in 2023 and 15.4% in the 2100 projection. Population aged 65 and older moves from 2.9% to 12.9% and 29.7%. First annual crossover: 2033 · projected. Estimates run through 2023 and WPP Medium projections begin in 2024.

Youth and older population in Cook Islands, 1950 to 2100 Cook Islands annual age balance from 1950 to 2100. Under-18 population moves from 52.7% in 1950 to 30.1% in 2023 and 15.4% in the 2100 projection. Population aged 65 and older moves from 2.9% to 12.9% and 29.7%. First annual crossover: 2033 · projected. Estimates run through 2023 and WPP Medium projections begin in 2024. 0% 20% 40% 60% 1950 1975 2000 2023 2050 2075 2100 ESTIMATES · THROUGH 2023 WPP MEDIUM PROJECTION UNDER 18 · 15.4% 65+ · 29.7%
1950
Under 18 · 52.7%65+ · 2.9%
2023 observed
Under 18 · 30.1%65+ · 12.9%
2100 projected
Under 18 · 15.4%65+ · 29.7%
Annual evidence · 151 source rows
Cook Islands under-18 and 65+ population history
YearEvidenceUnder 18Share65+Share
1950 observed 7,732 52.7% 426 2.9%
1951 observed 7,964 52.9% 430 2.9%
1952 observed 8,140 53.1% 432 2.8%
1953 observed 8,288 53.1% 449 2.9%
1954 observed 8,433 53.1% 463 2.9%
1955 observed 8,561 53.0% 477 3.0%
1956 observed 8,672 52.8% 492 3.0%
1957 observed 8,776 52.6% 497 3.0%
1958 observed 8,953 52.8% 507 3.0%
1959 observed 9,192 53.2% 508 2.9%
1960 observed 9,500 53.8% 511 2.9%
1961 observed 9,827 54.5% 511 2.8%
1962 observed 10,065 55.1% 525 2.9%
1963 observed 10,244 55.6% 538 2.9%
1964 observed 10,469 56.3% 564 3.0%
1965 observed 10,728 57.1% 598 3.2%
1966 observed 10,992 57.8% 612 3.2%
1967 observed 11,210 58.0% 622 3.2%
1968 observed 11,407 57.9% 631 3.2%
1969 observed 11,635 57.9% 634 3.2%
1970 observed 11,890 58.0% 630 3.1%
1971 observed 12,138 58.2% 640 3.1%
1972 observed 12,036 58.0% 655 3.2%
1973 observed 11,609 57.5% 667 3.3%
1974 observed 11,203 57.3% 675 3.4%
1975 observed 10,815 57.2% 682 3.6%
1976 observed 10,471 57.4% 687 3.8%
1977 observed 10,177 56.8% 699 3.9%
1978 observed 9,916 55.6% 706 4.0%
1979 observed 9,660 54.3% 716 4.0%
1980 observed 9,413 53.2% 733 4.1%
1981 observed 9,173 52.1% 737 4.2%
1982 observed 8,903 51.0% 737 4.2%
1983 observed 8,597 49.8% 744 4.3%
1984 observed 8,320 48.8% 755 4.4%
1985 observed 8,069 47.9% 760 4.5%
1986 observed 7,833 47.2% 756 4.6%
1987 observed 7,662 46.2% 763 4.6%
1988 observed 7,564 45.1% 772 4.6%
1989 observed 7,486 44.2% 791 4.7%
1990 observed 7,444 43.5% 800 4.7%
1991 observed 7,428 42.9% 809 4.7%
1992 observed 7,407 42.4% 820 4.7%
1993 observed 7,365 41.9% 836 4.8%
1994 observed 7,346 41.5% 860 4.9%
1995 observed 7,366 41.4% 876 4.9%
1996 observed 7,408 41.5% 904 5.1%
1997 observed 7,293 41.4% 913 5.2%
1998 observed 6,995 41.0% 921 5.4%
1999 observed 6,688 40.6% 928 5.6%
2000 observed 6,375 40.2% 933 5.9%
2001 observed 6,088 40.0% 936 6.1%
2002 observed 5,906 39.5% 956 6.4%
2003 observed 5,818 38.7% 992 6.6%
2004 observed 5,736 38.0% 1,026 6.8%
2005 observed 5,659 37.4% 1,061 7.0%
2006 observed 5,602 36.8% 1,089 7.2%
2007 observed 5,555 35.9% 1,142 7.4%
2008 observed 5,529 34.6% 1,219 7.6%
2009 observed 5,510 33.4% 1,305 7.9%
2010 observed 5,505 32.4% 1,401 8.3%
2011 observed 5,505 31.5% 1,513 8.7%
2012 observed 5,464 30.9% 1,586 9.0%
2013 observed 5,385 30.6% 1,624 9.2%
2014 observed 5,303 30.2% 1,664 9.5%
2015 observed 5,223 29.9% 1,705 9.8%
2016 observed 5,142 29.7% 1,735 10.0%
2017 observed 5,014 29.4% 1,767 10.4%
2018 observed 4,869 29.3% 1,759 10.6%
2019 observed 4,744 29.4% 1,746 10.8%
2020 observed 4,642 29.7% 1,715 11.0%
2021 observed 4,541 29.9% 1,717 11.3%
2022 observed 4,418 30.0% 1,775 12.1%
2023 observed 4,287 30.1% 1,829 12.9%
2024 projected 4,108 29.9% 1,884 13.7%
2025 projected 3,898 29.4% 1,937 14.6%
2026 projected 3,674 28.6% 1,994 15.5%
2027 projected 3,449 27.7% 2,058 16.6%
2028 projected 3,228 26.7% 2,125 17.6%
2029 projected 3,006 25.5% 2,191 18.6%
2030 projected 2,810 24.5% 2,245 19.5%
2031 projected 2,628 23.3% 2,307 20.5%
2032 projected 2,462 22.3% 2,373 21.5%
2033 projected 2,313 21.3% 2,426 22.3%
2034 projected 2,184 20.4% 2,470 23.1%
2035 projected 2,071 19.7% 2,514 23.9%
2036 projected 1,966 18.9% 2,558 24.6%
2037 projected 1,888 18.4% 2,597 25.3%
2038 projected 1,829 18.0% 2,625 25.9%
2039 projected 1,790 17.8% 2,649 26.4%
2040 projected 1,769 17.8% 2,665 26.8%
2041 projected 1,773 18.0% 2,674 27.1%
2042 projected 1,795 18.3% 2,677 27.3%
2043 projected 1,833 18.8% 2,674 27.4%
2044 projected 1,873 19.3% 2,677 27.6%
2045 projected 1,914 19.9% 2,662 27.7%
2046 projected 1,952 20.4% 2,644 27.6%
2047 projected 1,996 21.0% 2,635 27.7%
2048 projected 2,032 21.5% 2,623 27.7%
2049 projected 2,062 21.9% 2,608 27.7%
2050 projected 2,086 22.3% 2,585 27.7%
2051 projected 2,101 22.6% 2,557 27.6%
2052 projected 2,106 22.9% 2,537 27.5%
2053 projected 2,100 23.0% 2,501 27.4%
2054 projected 2,086 23.0% 2,474 27.3%
2055 projected 2,056 22.8% 2,425 26.9%
2056 projected 2,018 22.6% 2,368 26.5%
2057 projected 1,970 22.3% 2,313 26.1%
2058 projected 1,918 21.8% 2,251 25.6%
2059 projected 1,861 21.4% 2,180 25.0%
2060 projected 1,801 20.8% 2,098 24.3%
2061 projected 1,739 20.3% 2,011 23.5%
2062 projected 1,682 19.8% 1,912 22.5%
2063 projected 1,627 19.2% 1,811 21.4%
2064 projected 1,574 18.7% 1,708 20.3%
2065 projected 1,529 18.3% 1,613 19.3%
2066 projected 1,490 17.9% 1,512 18.2%
2067 projected 1,458 17.6% 1,438 17.4%
2068 projected 1,434 17.4% 1,387 16.8%
2069 projected 1,415 17.2% 1,352 16.5%
2070 projected 1,406 17.2% 1,338 16.3%
2071 projected 1,404 17.2% 1,344 16.5%
2072 projected 1,410 17.3% 1,384 17.0%
2073 projected 1,422 17.4% 1,440 17.7%
2074 projected 1,439 17.6% 1,514 18.6%
2075 projected 1,457 17.9% 1,601 19.6%
2076 projected 1,479 18.1% 1,694 20.8%
2077 projected 1,502 18.4% 1,789 21.9%
2078 projected 1,521 18.7% 1,872 23.0%
2079 projected 1,541 18.9% 1,964 24.1%
2080 projected 1,556 19.0% 2,058 25.2%
2081 projected 1,569 19.2% 2,126 26.0%
2082 projected 1,577 19.3% 2,202 27.0%
2083 projected 1,580 19.3% 2,276 27.9%
2084 projected 1,576 19.3% 2,340 28.6%
2085 projected 1,568 19.2% 2,399 29.3%
2086 projected 1,556 19.0% 2,440 29.9%
2087 projected 1,539 18.8% 2,481 30.3%
2088 projected 1,516 18.6% 2,495 30.6%
2089 projected 1,491 18.3% 2,503 30.7%
2090 projected 1,462 17.9% 2,507 30.8%
2091 projected 1,430 17.6% 2,498 30.7%
2092 projected 1,398 17.3% 2,485 30.7%
2093 projected 1,367 16.9% 2,470 30.5%
2094 projected 1,335 16.5% 2,455 30.4%
2095 projected 1,306 16.2% 2,439 30.3%
2096 projected 1,281 16.0% 2,417 30.2%
2097 projected 1,260 15.7% 2,403 30.0%
2098 projected 1,240 15.6% 2,383 29.9%
2099 projected 1,225 15.4% 2,367 29.8%
2100 projected 1,214 15.4% 2,346 29.7%
SOURCE · UN WPP 2024 · SINGLE-AGE POPULATION CHECKS PASSED · DETAILS⌄
Releasewpp2024
RevisionPOP/DB/WPP/Rev.2024/GEN/F01/Rev.1
Vintage2024 Revision, Online Edition
Retrieved2026-06-25T11:25:03+00:00
LicenceCC BY 3.0 IGO
Formulaunder18-vs-65plus-annual-history-v1
Transformpipeline.derive.age_structure_history
Raw file SHA-2566de949eb0d6bf3277959da88c7591c608ad5fd995a17b4f120c11245a351dfb1 · d9c962d7e0beb731d3450cfabba8499a1449411e3c8aec3aeced06a7a2955b6e
Measurement universeall 237 WPP country and area records in the canonical Register
Reference time1950–2023 estimates; 2024–2100 WPP Medium projection
UnitPeople and percentage of same-year single-age population.
Evidence statusAnnual estimates through 2023; WPP Medium projection thereafter. No interpolation.
SOURCE · UN WPP 2024 CHECKS PASSED · DETAILS⌄
Releasewpp2024
RevisionPOP/DB/WPP/Rev.2024/GEN/F01/Rev.1
Vintage2024 Revision, Online Edition
Retrieved2026-06-25T11:25:03+00:00
LicenceCC BY 3.0 IGO
Formulathousands-to-people-v1
Transformreproducible canonical pipeline
Measurement universeDe facto population: all residents in the country or area, regardless of legal status or citizenship.
Reference timePopulation is measured at 1 July 2024; annual flows cover the source year.
UnitPeople; the source workbook's thousands are converted to whole people for display.
Evidence status2024 medium-variant projection; estimates run through 2023.