South Dakota city quiz
Name every city and town in South Dakota on a blank map. 310 incorporated cities and towns and 175 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 South Dakota
| # | City | Population | Land area (sq mi) | People per sq mi |
|---|---|---|---|---|
| 1 | Sioux Falls | 213,748 | 84.5 | 2,528 |
| 2 | Rapid City | 80,589 | 56.0 | 1,439 |
| 3 | Aberdeen | 27,961 | 16.6 | 1,687 |
| 4 | Brookings | 25,355 | 14.0 | 1,811 |
| 5 | Watertown | 23,736 | 18.4 | 1,287 |
| 6 | Yankton | 15,816 | 8.7 | 1,810 |
| 7 | Mitchell | 15,756 | 11.6 | 1,364 |
| 8 | Huron | 14,607 | 9.8 | 1,483 |
| 9 | Spearfish | 14,154 | 17.3 | 820 |
| 10 | Box Elder | 13,936 | 14.8 | 938 |
Population: Census Bureau July 2025 estimates. Land area: 2025 Census boundaries.
Largest unincorporated communities
Rapid Valley (8,098), Dakota Dunes (4,020), Pine Ridge (3,138), Blackhawk (3,026), and North Spearfish (2,366). Communities count in the quiz unless you switch them off in Options.
Questions
How many cities are in South Dakota?
The Census Bureau’s 2025 boundary files list 310 incorporated places in South Dakota: 157 cities, 152 towns, and 1 village. There are also 175 unincorporated communities (census-designated places), which this quiz includes unless you switch them off. That makes 485 places to find in total.
What is the largest city in South Dakota?
By population, Sioux Falls, with 213,748 people (July 2025 estimate). It is also the largest by land area, at 84.5 square miles.
What is the most densely populated city in South Dakota?
Among places with at least 10,000 people, Sioux Falls is the densest, with about 2,528 people per square mile on 84.55 square miles of land.
What is the smallest town in South Dakota?
By population, Hillsview, with 1 person (July 2025 estimate).
How does the South Dakota 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.