State of the United States
Idaho
Idaho is a state of the United States. It covers about 216,000 km² (83,500 mi²), the 14th largest of the 51 states and districts in Natural Earth’s file for the United States, and about the same size as Guyana. About 1.8 million people live there (Wikidata, 2020).
100 km
- Idaho
- Guyana
Facts
| Area, measured | 216,000 km²83,500 mi² |
|---|---|
| Official area | 217,000 km²Wikidata · agrees with our measure |
| Share of the United States | 2.3%of the area of the 51 states and districts |
| Rank by area | 14th of 51states and districts of the United States |
| Population | 1.8 millionWikidata, 2020 · the census year of every unit |
| Density | 8.5 people per km² |
| Capital | Boise |
| Latitude range | 42°N to 49°N |
| Type | StateUS-ID |
What the numbers say about Idaho
- Idaho covers 2.3% of the area of the United States and ranks 38th of 51 by population, against 14th by area.
- It would take 43.8 states and districts the size of Idaho to cover the United States.
- Idaho holds 0.6% of the 331.4 million people that Wikidata’s 2020 figures give for the 51 states and districts together: about 1 in 180.
- The largest, Alaska, is 6.96× the size of Idaho; the smallest, Washington, D.C., is less than 0.1% of it.
- Closest in size within the United States: Kansas (213,000 km², 1.02×) and Utah (220,000 km², 1.02×).
- Counted as a country, Idaho would be larger than 156 of the 239 countries and territories listed on sizeversus, and would rank 84th by area, between Laos (228,000 km²) and Guyana (211,000 km²).
- With 1.8 million people it would rank 152nd of 238 by population.
- Idaho has 8.5 people per km², about the density of Russia, which has 8.6 per km².
- That makes Idaho the 45th most densely populated of the 51 states and districts, 24% of the average for the United States (35 per km²).
- On a standard web map (Web Mercator), a place at 44°N is drawn about 2.0× too large in area, so Idaho looks bigger there than it is.
- Laid out flat, Idaho stretches about 777 km north to south and 500 km east to west.
- Wikidata's official figure of 217,000 km² agrees with our measured area of 216,000 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.
- ChinaAreaHunan1.02× · 211,000 km²PeopleTibet50% · 3.6 million (2020)
- IndiaAreaUttar Pradesh0.90× · 240,000 km²PeopleNagaland0.93× · 2.0 million (2011)
- GermanyAreanone within 2×PeopleHamburg0.97× · 1.9 million (2022)
- FranceAreanone within 2×PeopleCentre-Val de Loire71% · 2.6 million (2022)
- ItalyAreanone within 2×PeopleCalabria0.94× · 1.9 million (2019)
- SpainAreanone within 2×PeopleCastilla–La Mancha88% · 2.1 million (2024)
- JapanAreanone within 2×PeopleFukushima1.01× · 1.8 million (2021)
- BrazilAreaRoraima0.96× · 225,000 km²PeopleRondônia1.16× · 1.6 million (2022)
- CanadaAreaNewfoundland and Labrador54% · 403,000 km²PeopleManitoba1.37× · 1.3 million (2021)
- AustraliaAreaVictoria0.95× · 228,000 km²PeopleSouth Australia0.97× · 1.9 million (2024)
- MexicoAreaChihuahua87% · 248,000 km²PeopleQuintana Roo0.99× · 1.9 million (2020)
- ThailandAreanone within 2×PeopleUbon Ratchathani0.99× · 1.9 million (2020)
Where Idaho ranks
Idaho is the 14th largest of the 51 states and districts of the United States.
Ranked within the United States
- 11Michigan250,000 km²
- 12Minnesota225,000 km²
- 13Utah220,000 km²
- 14Idaho216,000 km²
- 15Kansas213,000 km²
- 16Nebraska201,000 km²
- 17South Dakota199,000 km²
All 51 states and districts of the United States, matched to countries
Compare Idaho
Share this outline
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