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Countries / Kiribati

Population state · Growing

Kiribati

Oceania · Micronesia · KIR · KI
SMALL POPULATION · Full population counts are shown; ratios with unstable small bases are suppressed.
Population state
Growing
current run since 1979 · projected 2024
Fertility
3.12
183 of 237 with a TFR, lowest first
World population rank
193
of 237
Regional population rank
11
of 23 in Oceania
Population
134,518
Annual change
+1,982
small absolute movement
Natural change
+2,455
Migrant share
2.5%
Peak population · projected 2099 Deaths exceed births · not in this year Working-age peak · not reached Support ratio · 14.41 people 15–64 per person 65+
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 Reduces growth

Negative net migration slows natural growth without reversing it.

Kiribati, 2024 projected: natural change +2,455 people, net migration −471, WPP adjustment −2, total population change +1,982. Negative net migration slows natural growth without reversing it.

Exact reconciliation: WPP includes a −2-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.
GROWING · STATE-SPECIFIC EVIDENCE

Growth in this series

46 source years · since 1979 Growing cohort
Current run
Since 1979
46 consecutive years · projected 2024
Latest annual gain
+1,982
1.47% of 2024 population
Series maximum
projected 2099
Projected from the WPP medium variant, not a forecast.
AGE STRUCTURE · 2023
PROJECTED PATH · WPP 2024 MEDIUM VARIANT
YearPopulationAnnual changeFertility
2024134,518+1,9823.12
2050182,621+1,6832.48
2080216,097+6392.10
2100222,645−141.95

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
Not reached by 2100
Rule
65+ strictly exceeds under 18

Kiribati annual age balance from 1950 to 2100. Under-18 population moves from 42.8% in 1950 to 40.6% in 2023 and 23.5% in the 2100 projection. Population aged 65 and older moves from 7.1% to 4.1% and 15.6%. First annual crossover: Not reached by 2100. Estimates run through 2023 and WPP Medium projections begin in 2024.

Youth and older population in Kiribati, 1950 to 2100 Kiribati annual age balance from 1950 to 2100. Under-18 population moves from 42.8% in 1950 to 40.6% in 2023 and 23.5% in the 2100 projection. Population aged 65 and older moves from 7.1% to 4.1% and 15.6%. First annual crossover: Not reached by 2100. 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 · 23.5% 65+ · 15.6%
1950
Under 18 · 42.8%65+ · 7.1%
2023 observed
Under 18 · 40.6%65+ · 4.1%
2100 projected
Under 18 · 23.5%65+ · 15.6%
Annual evidence · 151 source rows
Kiribati under-18 and 65+ population history
YearEvidenceUnder 18Share65+Share
1950 observed 16,213 42.8% 2,692 7.1%
1951 observed 16,794 43.5% 2,642 6.8%
1952 observed 17,402 44.1% 2,599 6.6%
1953 observed 18,036 44.8% 2,550 6.3%
1954 observed 18,699 45.5% 2,502 6.1%
1955 observed 19,379 46.1% 2,462 5.9%
1956 observed 20,073 46.7% 2,422 5.6%
1957 observed 20,789 47.3% 2,383 5.4%
1958 observed 21,514 47.8% 2,335 5.2%
1959 observed 22,260 48.4% 2,289 5.0%
1960 observed 23,020 48.8% 2,262 4.8%
1961 observed 23,803 49.3% 2,235 4.6%
1962 observed 24,596 49.7% 2,210 4.5%
1963 observed 25,386 50.0% 2,208 4.3%
1964 observed 26,165 50.2% 2,222 4.3%
1965 observed 26,943 50.4% 2,250 4.2%
1966 observed 27,541 50.6% 2,304 4.2%
1967 observed 27,959 50.8% 2,394 4.4%
1968 observed 28,383 51.1% 2,457 4.4%
1969 observed 28,873 51.2% 2,487 4.4%
1970 observed 29,434 51.2% 2,488 4.3%
1971 observed 29,970 51.1% 2,490 4.2%
1972 observed 30,464 51.0% 2,480 4.1%
1973 observed 30,910 50.8% 2,463 4.0%
1974 observed 31,058 50.7% 2,425 4.0%
1975 observed 30,860 50.6% 2,366 3.9%
1976 observed 30,559 50.4% 2,304 3.8%
1977 observed 30,184 50.1% 2,225 3.7%
1978 observed 29,812 49.8% 2,140 3.6%
1979 observed 29,695 49.3% 2,124 3.5%
1980 observed 29,835 48.8% 2,168 3.5%
1981 observed 29,962 48.2% 2,206 3.6%
1982 observed 30,100 47.7% 2,254 3.6%
1983 observed 30,233 47.1% 2,291 3.6%
1984 observed 30,395 46.6% 2,324 3.6%
1985 observed 30,694 46.2% 2,364 3.6%
1986 observed 31,209 45.9% 2,410 3.5%
1987 observed 31,850 45.7% 2,451 3.5%
1988 observed 32,578 45.6% 2,480 3.5%
1989 observed 33,393 45.7% 2,522 3.4%
1990 observed 34,261 45.8% 2,559 3.4%
1991 observed 35,130 46.0% 2,597 3.4%
1992 observed 35,972 46.3% 2,635 3.4%
1993 observed 36,770 46.6% 2,691 3.4%
1994 observed 37,540 46.9% 2,749 3.4%
1995 observed 38,279 47.1% 2,810 3.5%
1996 observed 39,045 47.3% 2,869 3.5%
1997 observed 39,766 47.3% 2,921 3.5%
1998 observed 40,392 47.2% 2,972 3.5%
1999 observed 40,941 47.0% 3,006 3.5%
2000 observed 41,412 46.7% 3,018 3.4%
2001 observed 41,951 46.4% 3,067 3.4%
2002 observed 42,519 46.1% 3,137 3.4%
2003 observed 42,990 45.6% 3,208 3.4%
2004 observed 43,429 45.2% 3,297 3.4%
2005 observed 43,898 44.8% 3,396 3.5%
2006 observed 44,401 44.4% 3,502 3.5%
2007 observed 44,938 44.0% 3,618 3.5%
2008 observed 45,534 43.7% 3,730 3.6%
2009 observed 46,176 43.4% 3,831 3.6%
2010 observed 46,873 43.1% 3,912 3.6%
2011 observed 47,416 42.9% 3,989 3.6%
2012 observed 47,741 42.5% 4,044 3.6%
2013 observed 47,995 42.2% 4,112 3.6%
2014 observed 48,161 41.8% 4,196 3.6%
2015 observed 48,307 41.4% 4,310 3.7%
2016 observed 48,586 41.0% 4,428 3.7%
2017 observed 49,013 40.8% 4,560 3.8%
2018 observed 49,500 40.5% 4,691 3.8%
2019 observed 50,093 40.4% 4,828 3.9%
2020 observed 50,933 40.4% 4,953 3.9%
2021 observed 51,921 40.4% 5,079 4.0%
2022 observed 52,869 40.5% 5,237 4.0%
2023 observed 53,764 40.6% 5,457 4.1%
2024 projected 54,512 40.5% 5,701 4.2%
2025 projected 55,089 40.4% 5,972 4.4%
2026 projected 55,525 40.1% 6,279 4.5%
2027 projected 55,858 39.8% 6,630 4.7%
2028 projected 56,079 39.4% 7,005 4.9%
2029 projected 56,196 39.0% 7,374 5.1%
2030 projected 56,275 38.5% 7,765 5.3%
2031 projected 56,372 38.1% 8,148 5.5%
2032 projected 56,496 37.7% 8,529 5.7%
2033 projected 56,630 37.3% 8,882 5.9%
2034 projected 56,762 37.0% 9,193 6.0%
2035 projected 56,886 36.6% 9,453 6.1%
2036 projected 57,006 36.2% 9,679 6.2%
2037 projected 57,095 35.9% 9,879 6.2%
2038 projected 57,179 35.5% 10,051 6.2%
2039 projected 57,275 35.2% 10,223 6.3%
2040 projected 57,375 34.8% 10,375 6.3%
2041 projected 57,513 34.5% 10,557 6.3%
2042 projected 57,684 34.3% 10,750 6.4%
2043 projected 57,890 34.0% 10,967 6.4%
2044 projected 58,115 33.8% 11,244 6.5%
2045 projected 58,356 33.6% 11,552 6.6%
2046 projected 58,608 33.4% 11,891 6.8%
2047 projected 58,855 33.2% 12,270 6.9%
2048 projected 59,087 33.0% 12,683 7.1%
2049 projected 59,306 32.8% 13,126 7.3%
2050 projected 59,500 32.6% 13,579 7.4%
2051 projected 59,657 32.4% 14,039 7.6%
2052 projected 59,787 32.2% 14,508 7.8%
2053 projected 59,892 32.0% 14,975 8.0%
2054 projected 59,957 31.7% 15,433 8.2%
2055 projected 59,996 31.5% 15,925 8.4%
2056 projected 60,004 31.3% 16,436 8.6%
2057 projected 60,007 31.0% 16,960 8.8%
2058 projected 59,979 30.8% 17,471 9.0%
2059 projected 59,935 30.5% 17,980 9.2%
2060 projected 59,864 30.3% 18,494 9.4%
2061 projected 59,756 30.1% 19,009 9.6%
2062 projected 59,636 29.8% 19,510 9.8%
2063 projected 59,502 29.6% 19,979 9.9%
2064 projected 59,363 29.3% 20,396 10.1%
2065 projected 59,218 29.1% 20,729 10.2%
2066 projected 59,072 28.9% 20,990 10.3%
2067 projected 58,932 28.7% 21,144 10.3%
2068 projected 58,793 28.5% 21,225 10.3%
2069 projected 58,645 28.3% 21,291 10.3%
2070 projected 58,497 28.1% 21,390 10.3%
2071 projected 58,358 27.9% 21,558 10.3%
2072 projected 58,216 27.7% 21,824 10.4%
2073 projected 58,081 27.5% 22,178 10.5%
2074 projected 57,944 27.4% 22,599 10.7%
2075 projected 57,817 27.2% 23,083 10.9%
2076 projected 57,689 27.0% 23,634 11.1%
2077 projected 57,553 26.9% 24,226 11.3%
2078 projected 57,417 26.7% 24,782 11.5%
2079 projected 57,283 26.6% 25,333 11.8%
2080 projected 57,141 26.4% 25,863 12.0%
2081 projected 56,978 26.3% 26,404 12.2%
2082 projected 56,813 26.1% 26,944 12.4%
2083 projected 56,633 26.0% 27,501 12.6%
2084 projected 56,446 25.8% 28,092 12.9%
2085 projected 56,248 25.7% 28,680 13.1%
2086 projected 56,044 25.5% 29,242 13.3%
2087 projected 55,819 25.4% 29,796 13.5%
2088 projected 55,592 25.2% 30,320 13.8%
2089 projected 55,355 25.1% 30,809 14.0%
2090 projected 55,106 24.9% 31,260 14.1%
2091 projected 54,863 24.8% 31,690 14.3%
2092 projected 54,603 24.6% 32,096 14.5%
2093 projected 54,338 24.5% 32,470 14.6%
2094 projected 54,055 24.3% 32,833 14.8%
2095 projected 53,763 24.2% 33,179 14.9%
2096 projected 53,470 24.0% 33,516 15.1%
2097 projected 53,173 23.9% 33,849 15.2%
2098 projected 52,883 23.8% 34,177 15.4%
2099 projected 52,594 23.6% 34,506 15.5%
2100 projected 52,310 23.5% 34,835 15.6%
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.
Download image card Compare Kiribati with…
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.