42 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Watertown | 1 | 22,537 | 22,933 | -0.35% | 1,868 | 12 | City |
| Watertown | 2 | 22,537 | 22,934 | -0.35% | 1,868 | 12 | City |
| Beaver Dam | 3 | 16,375 | 16,715 | -0.41% | 2,206 | 7 | City |
| Beaver Dam | 4 | 16,375 | 16,714 | -0.41% | 2,206 | 7 | City |
| Waupun | 5 | 11,022 | 11,563 | -0.98% | 2,360 | 5 | City |
| Waupun | 6 | 11,022 | 11,567 | -0.98% | 2,360 | 5 | City |
| Mayville | 7 | 5,208 | 5,197 | 0.06% | 1,600 | 3 | City |
| Mayville | 8 | 5,208 | 5,192 | 0.06% | 1,600 | 3 | City |
| Horicon | 9 | 3,926 | 3,777 | 0.72% | 1,121 | 4 | City |
| Horicon | 10 | 3,926 | 3,783 | 0.72% | 1,121 | 4 | City |
| Juneau | 11 | 2,711 | 2,653 | 0.44% | 1,644 | 2 | City |
| Juneau | 12 | 2,711 | 2,650 | 0.44% | 1,644 | 2 | City |
| Lomira | 13 | 2,668 | 2,680 | -0.11% | 1,215 | 2 | Village |
| Lomira | 14 | 2,668 | 2,681 | -0.11% | 1,215 | 2 | Village |
| Fox Lake | 15 | 1,701 | 1,606 | 1.13% | 1,033 | 2 | City |
| Fox Lake | 16 | 1,701 | 1,604 | 1.13% | 1,033 | 2 | City |
| Theresa | 17 | 1,287 | 1,254 | 0.55% | 1,744 | 1 | Village |
| Theresa | 18 | 1,287 | 1,252 | 0.55% | 1,744 | 1 | Village |
| Ashippun | 19 | 1,110 | 1,027 | 4.82% | 1,080 | 1 | CDP |
| Hustisford | 20 | 1,068 | 1,098 | -0.56% | 958 | 1 | Village |
| Hustisford | 21 | 1,068 | 1,096 | -0.56% | 958 | 1 | Village |
| Iron Ridge | 22 | 921 | 905 | 0.33% | 1,373 | 1 | Village |
| Iron Ridge | 23 | 921 | 904 | 0.33% | 1,373 | 1 | Village |
| Kekoskee | 24 | 877 | 891 | -0.34% | 28 | 31 | Village |
| Kekoskee | 25 | 877 | 890 | -0.34% | 28 | 31 | Village |
| Reeseville | 26 | 760 | 763 | -0.13% | 1,216 | 1 | Village |
| Reeseville | 27 | 760 | 762 | -0.13% | 1,216 | 1 | Village |
| Brownsville | 28 | 663 | 596 | 2% | 1,082 | 1 | Village |
| Brownsville | 29 | 663 | 598 | 2% | 1,082 | 1 | Village |
| Neosho | 30 | 580 | 591 | -0.34% | 1,103 | 1 | Village |
| Neosho | 31 | 580 | 590 | -0.34% | 1,103 | 1 | Village |
| Oconomowoc Lake | 32 | 568 | 570 | -0.18% | 296 | 2 | Village |
| Oconomowoc Lake | 33 | 568 | 570 | -0.18% | 296 | 2 | Village |
| Clyman | 34 | 390 | 399 | -0.51% | 1,040 | 0 | Village |
| Clyman | 35 | 390 | 398 | -0.51% | 1,040 | 0 | Village |
| Burnett | 36 | 301 | 327 | 1.01% | 1,204 | 0 | CDP |
| Lowell | 37 | 301 | 313 | -0.99% | 304 | 1 | Village |
| Lowell | 38 | 301 | 313 | -0.99% | 304 | 1 | Village |
| Lac La Belle | 39 | 280 | 281 | -0.36% | 253 | 1 | Village |
| Lac La Belle | 40 | 280 | 283 | -0.36% | 253 | 1 | Village |
| Rubicon | 41 | 149 | 136 | 7.19% | 352 | 0 | CDP |
| Lebanon | 42 | 116 | 98 | -4.92% | 263 | 0 | CDP |
Watertown is the largest city in Dodge County, with a population of 22,537.
Lebanon is the smallest city in Dodge County, with a population of 116.
There are 42 cities in Dodge County, Wisconsin.