Cook Islands vs Marshall Islands

Cook Islands is 33% larger than Marshall Islands.

Cook IslandsMarshall IslandsCook Islands moved onto Marshall Islands · Equal-area projection
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1.33×
Cook Islands is 1.33× the area of Marshall Islands.
Cook IslandsMarshall Islands
Size
AreaCook Islands: 1.33× the area240 km²181 km²#189 of 194
CoastlineCoast, no land borderCoast, no land border
Land neighbours00
People
PopulationMarshall Islands: 2.55× the population14,222202336,282#190 of 194 · 2025
DensityMarshall Islands: 3.38× the density59 / km²200 / km²#50 of 194
Urban population—79%#48 of 192 · 2025
Fertility rate—2.86 per woman#57 of 192 · 2024
Population growth—−3.43%#192 of 192 · 2025
Birth rate—20.1 per 1,000#71 of 192 · 2024
Death rate—7.1 per 1,000#97 of 192 · 2024
Children under 15—33.9%#54 of 192 · 2025
People over 65—4.9%#126 of 192 · 2025
Net migration—−46.8 per 1,000#192 of 192 · 2025
Refugees abroad—0.00 per 1,000#174 of 190 · 2025
Health & education
Life expectancy—67.1 years#152 of 192 · 2024
Infant mortality—22.7 per 1,000 births#63 of 191 · 2024
University enrolment—37.7%#94 of 145 · 2024
Human Development Index—0.733#107 of 190 · 2023
Economy
GNI per capita—$9,710#81 of 185 · 2025
GDP—$308M2025
Income group—Upper-middle income
GDP per capita (PPP)—$8,964#132 of 184 · 2025
GDP growth—+2.3%#124 of 187 · 2025
Extreme poverty—2.1%#73 of 149 · 2019
Income inequality (Gini)—35.5#68 of 149 · 2019
Foreign investment—1.0% of GDP#126 of 184 · 2025
Exports—36.0% of GDP#82 of 168 · 2025
Internet users—66%#127 of 184 · 2024
Mobile subscriptions—40 per 100#186 of 191 · 2022
Energy & environment
Forest area—54% of land#40 of 192 · 2024
CO₂ per person—0.00 t a year#183 of 185 · 2024
Renewable energy—12.2%#130 of 190 · 2022
Access to electricity—97.2%#122 of 192 · 2024
Air pollution (PM2.5)—4.1 µg/m³#189 of 191 · 2023
Protected land—16.1% of land#106 of 191 · 2025
Arable land—2.8% of land#152 of 190 · 2024
Governance & safety
Political stability—+1.52#3 of 193 · 2025
Control of corruption—+0.35#65 of 193 · 2025
State
StatusTerritory of New ZealandIndependent state
GovernmentDependent territoryparliamentary democracyParliamentary republicmixed presidential-parliamentary system in free association with the US
CapitalAvaruaMajuro
CurrencyNew Zealand dollar (NZD)United States dollar (USD)
Official languagesEnglish, Cook Islands MaoriEnglish, Marshallese
Traffic drivesOn the leftOn the right
Time zoneUTC−10UTC+12
Calling code+682+692
RegionPolynesia, OceaniaMicronesia, Oceania

Area: Wikidata. Population, income, health, economy, environment and governance: World Bank. Human Development Index: UNDP. Government: CIA World Factbook. Ranks among the 194 independent states. All sources

Why the map you grew up with disagrees

On a Mercator map, area grows with distance from the equator. Cook Islands sits at about 21° S and is stretched to 1.15× its true area; Marshall Islands at 7° N is stretched to 1.02×. Here the two are distorted about the same amount, so Mercator gets this pair roughly right. The figure above uses the Equal Earth projection, where every square kilometre is drawn the same size.

Questions about this pair

Is Cook Islands bigger than Marshall Islands?
Yes. Cook Islands is 33% larger than Marshall Islands. Cook Islands covers 240 km² and Marshall Islands covers 181 km².
How many times does Marshall Islands fit into Cook Islands?
About 1.3 times: Cook Islands has 1.33× the area of Marshall Islands.
Why do Cook Islands and Marshall Islands look different on Google Maps?
Web maps use the Mercator projection, which stretches area with distance from the equator. Cook Islands is drawn about 1.15× its true area there and Marshall Islands about 1.02×. For this pair the distortion is similar, so Mercator gets the comparison roughly right. Kartavera uses Equal Earth, where every square kilometre is drawn the same size.
Which has more people, Cook Islands or Marshall Islands?
Marshall Islands: 36,282 people against 14,222. Density: Cook Islands 59 per km², Marshall Islands 200 per km².
What kind of government do Cook Islands and Marshall Islands have?
By constitution, as the CIA World Factbook describes them — Cook Islands: dependent territory; Marshall Islands: parliamentary republic.