3 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Ste. Genevieve | 1 | 5,039 | 4,996 | 0.14% | 1,292 | 4 | City |
| Bloomsdale | 2 | 698 | 641 | 1.45% | 429 | 2 | City |
| St. Mary | 3 | 305 | 307 | 0% | 509 | 1 | City |
Ste. Genevieve is the largest city in Ste. Genevieve County, with a population of 5,039.
St. Mary is the smallest city in Ste. Genevieve County, with a population of 305.
There are 3 cities in Ste. Genevieve County, Missouri.