27 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Lake City | 1 | 5,356 | 5,253 | 0.39% | 1,193 | 4.49 | City |
| Plainview | 2 | 3,554 | 3,486 | 0.4% | 1,659 | 2.14 | City |
| Wabasha | 3 | 2,615 | 2,557 | 0.46% | 319 | 8.19 | City |
| Greenfield | 4 | 1,324 | 1,308 | 0.08% | 41 | 32.27 | Township |
| Elgin | 5 | 1,170 | 1,114 | 0.95% | 1,259 | 0.93 | City |
| Mazeppa | 6 | 888 | 878 | 0.23% | 816 | 1.09 | City |
| Elgin | 7 | 695 | 686 | 0.14% | 20 | 34.44 | Township |
| Mazeppa | 8 | 652 | 646 | 0% | 30 | 21.54 | Township |
| Zumbro | 9 | 650 | 645 | -0.15% | 21 | 31.54 | Township |
| Gillford | 10 | 515 | 508 | 0.19% | 15 | 35.33 | Township |
| Plainview | 11 | 463 | 458 | 0% | 14 | 33.39 | Township |
| Mount Pleasant | 12 | 454 | 446 | 0.22% | 13 | 35.96 | Township |
| Highland | 13 | 449 | 441 | 0.22% | 13 | 35.71 | Township |
| Kellogg | 14 | 437 | 421 | 0.69% | 1,410 | 0.31 | City |
| Lake | 15 | 432 | 429 | -0.23% | 18 | 24.64 | Township |
| Chester | 16 | 418 | 410 | 0.24% | 12 | 35.46 | Township |
| Oakwood | 17 | 383 | 382 | -0.26% | 11 | 35.39 | Township |
| West Albany | 18 | 381 | 378 | -0.26% | 11 | 35.56 | Township |
| Pepin | 19 | 378 | 373 | 0% | 22 | 17.52 | Township |
| Glasgow | 20 | 270 | 262 | 0.75% | 8 | 34.97 | Township |
| Hyde Park | 21 | 266 | 258 | 0.76% | 17 | 15.81 | Township |
| Watopa | 22 | 253 | 245 | 0.8% | 7 | 35.25 | Township |
| Minneiska | 23 | 186 | 181 | 0.54% | 18 | 10.54 | Township |
| Zumbro Falls | 24 | 155 | 157 | 0% | 265 | 0.58 | City |
| Millville | 25 | 148 | 152 | -0.67% | 987 | 0.15 | City |
| Elba | 26 | 126 | 130 | -0.79% | 65 | 1.93 | City |
| Minneiska | 27 | 96 | 98 | 0% | 186 | 0.52 | City |
Lake City is the largest city in Wabasha County, with a population of 5,356.
Minneiska is the smallest city in Wabasha County, with a population of 96.
There are 27 cities in Wabasha County, Minnesota.