Idaho city quiz
Name every city and town in Idaho on a blank map. 200 incorporated cities and towns and 36 unincorporated communities, each with its real boundary. Type a name and its borders fill in on a street map that has highways and parks but no place names.
Largest cities in Idaho
| # | City | Population | Land area (sq mi) | People per sq mi |
|---|---|---|---|---|
| 1 | Boise | 238,429 | 86.1 | 2,769 |
| 2 | Meridian | 142,988 | 37.6 | 3,801 |
| 3 | Nampa | 120,384 | 36.1 | 3,338 |
| 4 | Caldwell | 76,629 | 25.4 | 3,017 |
| 5 | Idaho Falls | 71,785 | 27.2 | 2,643 |
| 6 | Pocatello | 58,771 | 34.8 | 1,690 |
| 7 | Coeur d'Alene | 58,179 | 16.9 | 3,449 |
| 8 | Twin Falls | 56,216 | 19.9 | 2,829 |
| 9 | Post Falls | 46,715 | 19.2 | 2,438 |
| 10 | Rexburg | 40,334 | 10.4 | 3,871 |
Population: Census Bureau July 2025 estimates. Land area: 2025 Census boundaries.
Largest unincorporated communities
Lincoln (4,556), Fort Hall (3,195), Mountain Home AFB (3,191), Hidden Springs (3,076), and Moreland (1,264). Communities count in the quiz unless you switch them off in Options.
Questions
How many cities are in Idaho?
The Census Bureau’s 2025 boundary files list 200 incorporated places in Idaho: 200 cities. There are also 36 unincorporated communities (census-designated places), which this quiz includes unless you switch them off. That makes 236 places to find in total.
What is the largest city in Idaho?
By population, Boise, with 238,429 people (July 2025 estimate). It is also the largest by land area, at 86.1 square miles.
What is the most densely populated city in Idaho?
Among places with at least 10,000 people, Rexburg is the densest, with about 3,871 people per square mile on 10.42 square miles of land.
What is the smallest town in Idaho?
By population, Warm River, with 1 person (July 2025 estimate).
How does the Idaho city quiz work?
Type a city, town or community and press Enter. If it is in the quiz, its real boundary fills in green on a blank street map that has highways, parks and water but no place names. A name shared by several places, like Springfield, fills in all of them at once. Hover a found city to see its population, land area and density, ranked within its state.
Is it free?
Yes. Every US quiz is free. Sign in with your email to save progress across devices and appear on the leaderboards.