27 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Lake City | 1 | 5,319 | 5,251 | 0.25% | 1,185 | 4 | City |
| Plainview | 2 | 3,502 | 3,480 | 0.11% | 1,635 | 2 | City |
| Wabasha | 3 | 2,606 | 2,566 | 0.31% | 318 | 8 | City |
| Greenfield | 4 | 1,303 | 1,302 | -0.53% | 40 | 32 | Township |
| Elgin | 5 | 1,145 | 1,114 | 0.53% | 1,233 | 1 | City |
| Mazeppa | 6 | 868 | 873 | -0.12% | 798 | 1 | City |
| Elgin | 7 | 686 | 688 | -0.44% | 20 | 34 | Township |
| Mazeppa | 8 | 652 | 649 | -0.46% | 30 | 22 | Township |
| Zumbro | 9 | 649 | 645 | -0.31% | 21 | 32 | Township |
| Gillford | 10 | 504 | 504 | -0.79% | 14 | 35 | Township |
| Plainview | 11 | 463 | 461 | -0.43% | 14 | 33 | Township |
| Mount Pleasant | 12 | 450 | 450 | -0.66% | 13 | 36 | Township |
| Highland | 13 | 447 | 443 | -0.22% | 13 | 36 | Township |
| Lake | 14 | 429 | 428 | -0.69% | 17 | 25 | Township |
| Kellogg | 15 | 427 | 419 | 0.23% | 1,377 | 0 | City |
| Chester | 16 | 416 | 414 | -0.24% | 12 | 35 | Township |
| West Albany | 17 | 385 | 382 | -0.26% | 11 | 36 | Township |
| Oakwood | 18 | 381 | 383 | -1.04% | 11 | 35 | Township |
| Pepin | 19 | 372 | 373 | -0.8% | 21 | 18 | Township |
| Hyde Park | 20 | 257 | 257 | -0.77% | 16 | 16 | Township |
| Glasgow | 21 | 256 | 256 | -0.78% | 7 | 35 | Township |
| Watopa | 22 | 248 | 248 | -0.8% | 7 | 35 | Township |
| Minneiska | 23 | 183 | 180 | 0% | 17 | 11 | Township |
| Zumbro Falls | 24 | 153 | 156 | -0.65% | 262 | 1 | City |
| Millville | 25 | 143 | 148 | -0.69% | 953 | 0 | City |
| Elba | 26 | 126 | 129 | -0.79% | 65 | 2 | City |
| Minneiska | 27 | 96 | 99 | -1.03% | 186 | 1 | City |
Lake City is the largest city in Wabasha County, with a population of 5,319.
Minneiska is the smallest city in Wabasha County, with a population of 96.
There are 27 cities in Wabasha County, Minnesota.