27 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Lake City | 1 | 5,333 | 5,251 | 0.26% | 1,188 | 4 | City |
| Plainview | 2 | 3,507 | 3,480 | 0.14% | 1,637 | 2 | City |
| Wabasha | 3 | 2,614 | 2,566 | 0.31% | 319 | 8 | City |
| Greenfield | 4 | 1,296 | 1,302 | -0.54% | 40 | 32 | Township |
| Elgin | 5 | 1,151 | 1,114 | 0.52% | 1,239 | 1 | City |
| Mazeppa | 6 | 867 | 873 | -0.12% | 797 | 1 | City |
| Elgin | 7 | 683 | 688 | -0.44% | 20 | 34 | Township |
| Mazeppa | 8 | 649 | 649 | -0.46% | 30 | 22 | Township |
| Zumbro | 9 | 647 | 645 | -0.31% | 21 | 32 | Township |
| Gillford | 10 | 500 | 504 | -0.79% | 14 | 35 | Township |
| Plainview | 11 | 461 | 461 | -0.43% | 14 | 33 | Township |
| Mount Pleasant | 12 | 447 | 450 | -0.67% | 12 | 36 | Township |
| Highland | 13 | 446 | 443 | -0.22% | 12 | 36 | Township |
| Kellogg | 14 | 429 | 419 | 0.47% | 1,384 | 0 | City |
| Lake | 15 | 426 | 428 | -0.7% | 17 | 25 | Township |
| Chester | 16 | 415 | 414 | -0.24% | 12 | 35 | Township |
| West Albany | 17 | 384 | 382 | -0.26% | 11 | 36 | Township |
| Oakwood | 18 | 377 | 383 | -1.05% | 11 | 35 | Township |
| Pepin | 19 | 369 | 373 | -0.81% | 21 | 18 | Township |
| Hyde Park | 20 | 255 | 257 | -0.78% | 16 | 16 | Township |
| Glasgow | 21 | 254 | 256 | -0.78% | 7 | 35 | Township |
| Watopa | 22 | 246 | 248 | -0.81% | 7 | 35 | Township |
| Minneiska | 23 | 183 | 180 | 0% | 17 | 11 | Township |
| Zumbro Falls | 24 | 153 | 156 | 0% | 262 | 1 | City |
| Millville | 25 | 142 | 148 | -0.7% | 947 | 0 | City |
| Elba | 26 | 126 | 129 | 0% | 65 | 2 | City |
| Minneiska | 27 | 96 | 99 | 0% | 186 | 1 | City |
Lake City is the largest city in Wabasha County, with a population of 5,333.
Minneiska is the smallest city in Wabasha County, with a population of 96.
There are 27 cities in Wabasha County, Minnesota.