34 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Owatonna | 1 | 26,679 | 26,424 | 0.2% | 1,759 | 15 | City |
| Owatonna | 2 | 26,679 | 26,412 | 0.2% | 1,759 | 15 | City |
| Blooming Prairie | 3 | 1,930 | 1,971 | -0.41% | 1,415 | 1 | City |
| Blooming Prairie | 4 | 1,930 | 1,968 | -0.41% | 1,415 | 1 | City |
| Medford | 5 | 1,372 | 1,319 | 0.73% | 1,149 | 1 | City |
| Medford | 6 | 1,372 | 1,320 | 0.73% | 1,149 | 1 | City |
| Medford | 7 | 836 | 844 | -0.59% | 50 | 17 | Township |
| Medford | 8 | 836 | 845 | -0.59% | 50 | 17 | Township |
| Somerset | 9 | 701 | 726 | -0.85% | 19 | 36 | Township |
| Somerset | 10 | 701 | 727 | -0.85% | 19 | 36 | Township |
| Ellendale | 11 | 655 | 670 | -0.46% | 785 | 1 | City |
| Ellendale | 12 | 655 | 669 | -0.46% | 785 | 1 | City |
| Meriden | 13 | 593 | 615 | -0.84% | 16 | 36 | Township |
| Meriden | 14 | 593 | 614 | -0.84% | 16 | 36 | Township |
| Owatonna | 15 | 593 | 614 | -1% | 26 | 23 | Township |
| Owatonna | 16 | 593 | 613 | -1% | 26 | 23 | Township |
| Havana | 17 | 538 | 558 | -0.92% | 15 | 35 | Township |
| Havana | 18 | 538 | 557 | -0.92% | 15 | 35 | Township |
| Deerfield | 19 | 521 | 540 | -0.95% | 15 | 36 | Township |
| Deerfield | 20 | 521 | 539 | -0.95% | 15 | 36 | Township |
| Berlin | 21 | 491 | 509 | -1.01% | 14 | 35 | Township |
| Berlin | 22 | 491 | 508 | -1.01% | 14 | 35 | Township |
| Lemond | 23 | 488 | 505 | -0.81% | 14 | 36 | Township |
| Lemond | 24 | 488 | 504 | -0.81% | 14 | 36 | Township |
| Summit | 25 | 414 | 433 | -1.43% | 11 | 36 | Township |
| Summit | 26 | 414 | 432 | -1.43% | 11 | 36 | Township |
| Blooming Prairie | 27 | 386 | 400 | -1.03% | 11 | 34 | Township |
| Blooming Prairie | 28 | 386 | 400 | -1.03% | 11 | 34 | Township |
| Clinton Falls | 29 | 368 | 384 | -1.34% | 24 | 15 | Township |
| Clinton Falls | 30 | 368 | 384 | -1.34% | 24 | 15 | Township |
| Merton | 31 | 345 | 358 | -0.86% | 10 | 36 | Township |
| Merton | 32 | 345 | 358 | -0.86% | 10 | 36 | Township |
| Hope | 33 | 219 | 223 | -0.9% | 6 | 35 | Township |
| Hope | 34 | 219 | 222 | -0.9% | 6 | 35 | Township |
Owatonna is the largest city in Steele County, with a population of 26,679.
Hope is the smallest city in Steele County, with a population of 219.
There are 34 cities in Steele County, Minnesota.