| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Green Bay | 1 | 106,463 | 107,301 | -0.2% | 2,341 | 45 | City |
| De Pere | 2 | 25,607 | 25,405 | 0.07% | 2,142 | 12 | City |
| Howard | 3 | 22,729 | 19,994 | 2.23% | 1,215 | 19 | Village |
| Ashwaubenon | 4 | 17,491 | 17,082 | 0.53% | 1,412 | 12 | Village |
| Bellevue | 5 | 16,978 | 15,954 | 1.2% | 1,176 | 14 | Village |
| Allouez | 6 | 13,787 | 14,139 | -0.37% | 3,020 | 5 | Village |
| Suamico | 7 | 13,216 | 12,860 | 0.48% | 364 | 36 | Village |
| Hobart | 8 | 11,841 | 10,223 | 1.43% | 359 | 33 | Village |
| Wrightstown | 9 | 4,381 | 3,190 | 5.09% | 972 | 5 | Village |
| Pulaski | 10 | 4,078 | 3,876 | 0.74% | 1,437 | 3 | Village |
| Denmark | 11 | 2,993 | 2,419 | 4.1% | 1,518 | 2 | Village |
| Greenleaf | 12 | 1,410 | 1,376 | 45.51% | 122 | 12 | Village |
| Greenleaf | 13 | 1,410 | 1,376 | 0.43% | 122 | 12 | Village |
| Greenleaf | 14 | 993 | 1,376 | 2.48% | 86 | 12 | Village |
| Greenleaf | 15 | 993 | 1,376 | -29.27% | 86 | 12 | Village |
Green Bay is the largest city in Brown County, with a population of 106,463.
Greenleaf is the smallest city in Brown County, with a population of 993.
There are 15 cities in Brown County, Wisconsin.