State of the United States
Oklahoma
Oklahoma is a state of the United States. It covers about 181,000 km² (69,700 mi²), the 19th largest of the 51 states and districts in Natural Earth’s file for the United States, and about the same size as Cambodia. About 4.0 million people live there (Wikidata, 2020).
200 km
- Cambodia
- Oklahoma
Facts
| Area, measured | 181,000 km²69,700 mi² |
|---|---|
| Official area | 181,000 km²Wikidata · agrees with our measure |
| Share of the United States | 1.9%of the area of the 51 states and districts |
| Rank by area | 19th of 51states and districts of the United States |
| Population | 4.0 millionWikidata, 2020 · the census year of every unit |
| Density | 22 people per km² |
| Capital | Oklahoma City |
| Latitude range | 34°N to 37°N |
| Type | StateUS-OK |
What the numbers say about Oklahoma
- Oklahoma covers 1.9% of the area of the United States and ranks 28th of 51 by population, against 19th by area.
- It would take 52.4 states and districts the size of Oklahoma to cover the United States.
- Oklahoma holds 1.2% of the 331.4 million people that Wikidata’s 2020 figures give for the 51 states and districts together: about 1 in 84.
- The largest, Alaska, is 8.33× the size of Oklahoma; the smallest, Washington, D.C., is less than 0.1% of it.
- Closest in size within the United States: Missouri (180,000 km², 1.00×) and North Dakota (183,000 km², 1.01×).
- Counted as a country, Oklahoma would be larger than 150 of the 239 countries and territories listed on sizeversus, and would rank 90th by area, between Cambodia (181,000 km²) and Uruguay (177,000 km²).
- With 4.0 million people it would rank 130th of 238 by population.
- Oklahoma has 22 people per km², about the density of Sudan, which has 22 per km².
- That makes Oklahoma the 36th most densely populated of the 51 states and districts, 63% of the average for the United States (35 per km²).
- On a standard web map (Web Mercator), a place at 36°N is drawn about 1.5× too large in area, so Oklahoma looks bigger there than it is.
- Laid out flat, Oklahoma stretches about 382 km north to south and 770 km east to west.
- Wikidata's official figure of 181,000 km² agrees with our measured area of 181,000 km², to within 2%.
About the same size as
Beside the regions of other countries
The closest region by area and by people in each of the other countries that have regional pages here, within a factor of 2. All 395 regions side by side.
- ChinaAreaHubei0.97× · 186,000 km²PeopleTibet1.09× · 3.6 million (2020)
- IndiaAreaGujarat0.98× · 184,000 km²PeopleTripura1.08× · 3.7 million (2011)
- GermanyAreanone within 2×PeopleSaxony0.97× · 4.1 million (2022)
- FranceAreanone within 2×PeoplePays de la Loire1.02× · 3.9 million (2022)
- ItalyAreanone within 2×PeopleApulia0.98× · 4.0 million (2019)
- SpainAreaCastile and León1.91× · 94,800 km²PeopleValencian Community74% · 5.3 million (2024)
- JapanAreanone within 2×PeopleShizuoka1.10× · 3.6 million (2021)
- BrazilAreaParaná0.91× · 199,000 km²PeopleParaíba1.00× · 4.0 million (2022)
- CanadaAreanone within 2×PeopleAlberta0.93× · 4.3 million (2021)
- AustraliaAreaVictoria79% · 228,000 km²PeopleWestern Australia1.32× · 3.0 million (2024)
- MexicoAreaSonora1.01× · 179,000 km²PeopleOaxaca1.00× · 4.0 million (2015)
- ThailandAreanone within 2×PeopleBangkok70% · 5.7 million (2018)
Where Oklahoma ranks
Oklahoma is the 19th largest of the 51 states and districts of the United States.
Compare Oklahoma
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Sources and method
- Outline
- Natural Earth, 1:10m Admin 1 - States, Provinces, public domain
- Boundary
- De facto, as drawn by Natural Earth.
- Area
- Measured on the WGS84 ellipsoid from the full-detail outline, shown rounded. The region’s whole area is counted, every island included.
- Official figures
- Area, population and capital from Wikidata (CC0), fetched 2026-11-12
- Population
- Wikidata, 2020. United States’s units share the 2020 figures where Wikidata has them; the year is shown wherever the figure is.
- Matching
- Countries come from Natural Earth’s country file. Places whose status is contested and dependencies are never used as automatic matches. A region under 2,500 km² is matched against the small countries and island nations.
- Data built
- 2026-11-12