8 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Grantsburg | 1 | 1,382 | 1,329 | 0.73% | 455 | 3 | Village |
| Grantsburg | 2 | 1,382 | 1,332 | 0.73% | 455 | 3 | Village |
| Siren | 3 | 950 | 831 | 2.48% | 698 | 1 | Village |
| Siren | 4 | 950 | 833 | 2.48% | 698 | 1 | Village |
| Webster | 5 | 716 | 691 | 0.56% | 408 | 2 | Village |
| Webster | 6 | 716 | 693 | 0.56% | 408 | 2 | Village |
| Lewis | 7 | 155 | 146 | -0.64% | 105 | 1 | CDP |
| Danbury | 8 | 72 | 114 | -8.86% | 57 | 1 | CDP |
Grantsburg is the largest city in Burnett County, with a population of 1,382.
Danbury is the smallest city in Burnett County, with a population of 72.
There are 8 cities in Burnett County, Wisconsin.