25 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| New Ulm | 1 | 13,789 | 14,129 | -0.49% | 1,356 | 10.17 | City |
| Sleepy Eye | 2 | 3,506 | 3,445 | 0.34% | 1,874 | 1.87 | City |
| Springfield | 3 | 1,967 | 2,029 | -0.61% | 1,048 | 1.88 | City |
| Milford township | 4 | 677 | 692 | -0.59% | 18 | 38.18 | Township |
| Home township | 5 | 481 | 497 | -1.03% | 9 | 52.23 | Township |
| Hanska | 6 | 378 | 383 | -0.26% | 1,530 | 0.25 | City |
| Comfrey | 7 | 369 | 383 | -0.81% | 862 | 0.43 | City |
| Sigel township | 8 | 335 | 344 | -0.59% | 9 | 39.05 | Township |
| Lake Hanska township | 9 | 322 | 335 | -1.23% | 9 | 36.73 | Township |
| Searles | 10 | 314 | 288 | 3.29% | 717 | 0.44 | CDP |
| Albin township | 11 | 304 | 313 | -0.65% | 9 | 34.39 | Township |
| Stark township | 12 | 293 | 303 | -1.01% | 8 | 35.57 | Township |
| Linden township | 13 | 283 | 289 | -0.35% | 8 | 35.22 | Township |
| North Star township | 14 | 260 | 268 | -0.76% | 7 | 35.39 | Township |
| Leavenworth township | 15 | 259 | 267 | -0.77% | 7 | 35.11 | Township |
| Burnstown township | 16 | 255 | 263 | -0.78% | 7 | 34.65 | Township |
| Prairieville township | 17 | 227 | 232 | -0.44% | 7 | 34.23 | Township |
| Bashaw township | 18 | 219 | 224 | -0.45% | 6 | 35.75 | Township |
| Eden township | 19 | 206 | 211 | -0.48% | 5 | 41.30 | Township |
| Mulligan township | 20 | 178 | 183 | -0.56% | 5 | 35.99 | Township |
| Stately township | 21 | 171 | 173 | 0% | 5 | 36.07 | Township |
| Springfield township | 22 | 110 | 118 | -1.79% | 3 | 36.05 | Township |
| Essig | 23 | 75 | 56 | 7.14% | 116 | 0.65 | CDP |
| Evan | 24 | 70 | 72 | 0% | 68 | 1.03 | City |
| Cobden | 25 | 36 | 38 | 0% | 36 | 0.99 | City |
New Ulm is the largest city in Brown County, with a population of 13,789.
Cobden is the smallest city in Brown County.
There are 25 cities in Brown County, Minnesota.