State of the United States

Ohio

Ohio is a state of the United States. It covers about 116,000 km² (44,800 mi²), the 34th largest of the 51 states and districts in Natural Earth’s file for the United States, and about the same size as Benin. About 11.8 million people live there (Wikidata, 2020).

In area1.00×the size ofBenin116,000 km² In people1.00×as many people asBelgium11.8 million

100 km

Benin
Ohio

Facts

Area, measured	116,000 km²44,800 mi²
Official area	116,000 km²Wikidata · agrees with our measure
Share of the United States	1.2%of the area of the 51 states and districts
Rank by area	34th of 51states and districts of the United States
Population	11.8 millionWikidata, 2020 · the census year of every unit
Density	102 people per km²
Capital	Columbus
Latitude range	38°N to 42°N
Type	StateUS-OH

What the numbers say about Ohio

Ohio covers 1.2% of the area of the United States and ranks 7th of 51 by population, against 34th by area.
It would take 81.6 states and districts the size of Ohio to cover the United States.
Ohio holds 3.6% of the 331.4 million people that Wikidata’s 2020 figures give for the 51 states and districts together: about 1 in 28.
The largest, Alaska, is 13.0× the size of Ohio; the smallest, Washington, D.C., is 0.1% of it.
Closest in size within the United States: Pennsylvania (119,000 km², 1.03×) and Louisiana (120,000 km², 1.03×).
Counted as a country, Ohio would be larger than 137 of the 239 countries and territories listed on sizeversus, and would rank 103rd by area, between Benin (116,000 km²) and Bulgaria (113,000 km²).
With 11.8 million people it would rank 81st of 238 by population.
Ohio has 102 people per km², about the density of Slovenia, which has 102 per km².
That makes Ohio the 11th most densely populated of the 51 states and districts, 2.90× the average for the United States (35 per km²).
On a standard web map (Web Mercator), a place at 40°N is drawn about 1.7× too large in area, so Ohio looks bigger there than it is.
Laid out flat, Ohio stretches about 438 km north to south and 367 km east to west.
Wikidata's official figure of 116,000 km² agrees with our measured area of 116,000 km², to within 2%.

About the same size as

About as many people 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.

Where Ohio ranks

Ohio is the 34th largest of the 51 states and districts of the United States.

Ranked within the United States

All 51 states and districts of the United States, matched to countries

Compare Ohio

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

Full method