| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| New Ulm | 1 | 13,802 | 14,129 | -0.44% | 1,358 | 10 | City |
| Sleepy Eye | 2 | 3,468 | 3,443 | 0.2% | 1,854 | 2 | City |
| Springfield | 3 | 1,969 | 2,029 | -0.56% | 1,049 | 2 | City |
| Hanska | 4 | 377 | 385 | -0.26% | 1,526 | 0 | City |
| Comfrey | 5 | 373 | 385 | -0.53% | 871 | 0 | City |
| Evan | 6 | 69 | 72 | -1.43% | 67 | 1 | City |
| Cobden | 7 | 31 | 33 | -3.13% | 31 | 1 | City |
New Ulm is the largest city in Brown County, with a population of 13,802.
Cobden is the smallest city in Brown County, with a population of 31.
There are 7 cities in Brown County, Minnesota.