Five cities are incorporated within Walker County:
- LaFayette (6,888 residents according to the 2020 Census)
- Rossville (3,980 residents according to the 2020 Census)
- Chickamauga (2,917 residents according to the 2020 Census)
- Lookout Mountain (1,641 residents according to the 2020 Census)
- Fort Oglethorpe (358 residents in Walker County and 10,065 in Catoosa County according to the 2020 Census)