29 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Ann Arbor | 1 | 116,561 | 123,611 | -1.2% | 4,114 | 28.33 | City |
| Ypsilanti charter | 2 | 53,955 | 55,584 | -0.58% | 1,800 | 29.97 | Township |
| Pittsfield charter | 3 | 39,258 | 39,156 | 0.05% | 1,448 | 27.12 | Township |
| Ypsilanti | 4 | 18,585 | 20,605 | -2.13% | 4,329 | 4.29 | City |
| Scio | 5 | 17,624 | 17,553 | 0.15% | 550 | 32.02 | Township |
| Superior charter | 6 | 14,998 | 14,865 | 0.04% | 426 | 35.22 | Township |
| York charter | 7 | 9,083 | 9,111 | -0.12% | 262 | 34.71 | Township |
| Saline | 8 | 9,023 | 8,980 | 0.1% | 2,081 | 4.33 | City |
| Northfield | 9 | 8,559 | 8,535 | 0.47% | 239 | 35.77 | Township |
| Whitmore Lake | 10 | 8,283 | 8,010 | 1.52% | 1,727 | 4.79 | CDP |
| Augusta charter | 11 | 6,950 | 7,071 | -0.27% | 189 | 36.70 | Township |
| Salem | 12 | 6,928 | 7,007 | -0.1% | 202 | 34.29 | Township |
| Dexter | 13 | 6,530 | 6,687 | -0.29% | 215 | 30.35 | Township |
| Webster | 14 | 6,488 | 6,577 | -0.29% | 186 | 34.87 | Township |
| Lodi | 15 | 6,235 | 6,409 | -0.53% | 182 | 34.27 | Township |
| Chelsea | 16 | 5,306 | 5,451 | -0.54% | 1,467 | 3.62 | City |
| Salem | 17 | 5,158 | 5,165 | -0.08% | 144 | 35.70 | Township |
| Ann Arbor charter | 18 | 4,866 | 4,645 | -0.16% | 298 | 16.33 | Township |
| Manchester | 19 | 4,668 | 4,617 | 0.5% | 123 | 37.86 | Township |
| Dexter | 20 | 4,519 | 4,493 | 0.11% | 2,326 | 1.94 | City |
| Lima | 21 | 4,093 | 4,026 | 0.71% | 118 | 34.55 | Township |
| Sylvan | 22 | 3,531 | 3,324 | 1.23% | 108 | 32.61 | Township |
| Saline | 23 | 2,775 | 2,271 | 5.63% | 80 | 34.69 | Township |
| Lyndon | 24 | 2,770 | 2,654 | 1.61% | 87 | 32.01 | Township |
| Manchester | 25 | 2,059 | 2,074 | -0.15% | 968 | 2.13 | Village |
| Sharon | 26 | 1,775 | 1,812 | -0.28% | 47 | 37.41 | Township |
| Bridgewater | 27 | 1,587 | 1,612 | -0.06% | 44 | 36.17 | Township |
| Freedom | 28 | 1,322 | 1,325 | 0.3% | 37 | 35.44 | Township |
| Barton Hills | 29 | 344 | 324 | 1.18% | 453 | 0.76 | Village |
Ann Arbor is the largest city in Washtenaw County, with a population of 116,561.
Barton Hills is the smallest city in Washtenaw County, with a population of 344.
There are 29 cities in Washtenaw County, Michigan.