6 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| LaFayette | 1 | 7,118 | 6,933 | 0.52% | 880 | 8.09 | City |
| Chattanooga Valley | 2 | 4,246 | 3,676 | 0.64% | 572 | 7.42 | CDP |
| Rossville | 3 | 4,001 | 3,975 | 0.13% | 2,215 | 1.81 | City |
| Chickamauga | 4 | 3,149 | 2,918 | 1.48% | 1,106 | 2.85 | City |
| Rock Spring | 5 | 1,769 | 800 | 7.15% | 611 | 2.90 | CDP |
| Lookout Mountain | 6 | 1,688 | 1,645 | 0.54% | 651 | 2.59 | City |
LaFayette is the largest city in Walker County, with a population of 7,118.
Lookout Mountain is the smallest city in Walker County.
There are 6 cities in Walker County, Georgia.