Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | 2024 Pop. | 2020 Pop. | Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Ann Arbor | 1 | 117,971 | 123,611 | -1.18% | 4,164 | 28.3 | City |
| Ypsilanti charter township | 2 | 54,270 | 55,584 | -0.58% | 1,811 | 30.0 | Township |
| Pittsfield charter township | 3 | 39,240 | 39,156 | 0.05% | 1,447 | 27.1 | Township |
| Ypsilanti | 4 | 18,989 | 20,605 | -2.08% | 4,423 | 4.3 | City |
| Scio township | 5 | 17,598 | 17,553 | 0.15% | 550 | 32.0 | Township |
| Superior charter township | 6 | 14,992 | 14,865 | 0.04% | 426 | 35.2 | Township |
| York charter township | 7 | 9,094 | 9,111 | -0.12% | 262 | 34.7 | Township |
| Saline | 8 | 9,014 | 8,980 | 0.09% | 2,079 | 4.3 | City |
| Northfield township | 9 | 8,519 | 8,535 | 0.47% | 238 | 35.8 | Township |
| Augusta charter township | 10 | 6,969 | 7,071 | -0.27% | 190 | 36.7 | Township |
| Salem township | 11 | 6,935 | 7,007 | -0.1% | 202 | 34.3 | Township |
| Dexter township | 12 | 6,549 | 6,687 | -0.29% | 216 | 30.3 | Township |
| Webster township | 13 | 6,507 | 6,577 | -0.29% | 187 | 34.9 | Township |
| Lodi township | 14 | 6,268 | 6,409 | -0.52% | 183 | 34.3 | Township |
| Chelsea | 15 | 5,335 | 5,451 | -0.54% | 1,475 | 3.6 | City |
| Salem township | 16 | 5,162 | 5,165 | -0.08% | 145 | 35.7 | Township |
| Ann Arbor charter township | 17 | 4,874 | 4,645 | -0.16% | 298 | 16.3 | Township |
| Manchester township | 18 | 4,645 | 4,617 | 0.5% | 123 | 37.9 | Township |
| Dexter | 19 | 4,514 | 4,493 | 0.11% | 2,323 | 1.9 | City |
| Lima township | 20 | 4,064 | 4,026 | 0.72% | 118 | 34.5 | Township |
| Sylvan township | 21 | 3,488 | 3,324 | 1.25% | 107 | 32.6 | Township |
| Lyndon township | 22 | 2,726 | 2,654 | 1.64% | 85 | 32.0 | Township |
| Saline township | 23 | 2,627 | 2,271 | 5.97% | 76 | 34.7 | Township |
| Manchester | 24 | 2,062 | 2,074 | -0.14% | 969 | 2.1 | Village |
| Sharon township | 25 | 1,780 | 1,812 | -0.28% | 48 | 37.4 | Township |
| Bridgewater township | 26 | 1,588 | 1,612 | -0.06% | 44 | 36.2 | Township |
| Freedom township | 27 | 1,318 | 1,325 | 0.3% | 37 | 35.4 | Township |
| Barton Hills | 28 | 340 | 324 | 1.19% | 448 | 0.8 | Village |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Ann Arbor is the largest city in Washtenaw County.
Barton Hills is the smallest city in Washtenaw County.
There are 28 cities in Washtenaw County, Michigan.