Identifiers: city · CDP · town
| Rank | Community | Population |
|---|---|---|
| 1 | Chattanooga (city), TN | 181,099 |
| 2 | East Ridge (city), TN | 22,167 |
| 3 | Soddy-Daisy (city), TN | 13,070 |
| 4 | Red Bank (city), TN | 11,899 |
| 5 | Middle Valley (CDP), TN | 11,695 |
| 6 | Collegedale (city), TN | 11,109 |
| 7 | Signal Mountain (town), TN | 8,852 |
| 8 | Harrison (CDP), TN | 7,902 |
| 9 | Sale Creek (CDP), TN | 3,021 |
| 10 | Fairmount (CDP), TN | 2,193 |
| 11 | Lookout Mountain (town), TN | 2,058 |
| 12 | Walden (town), TN | 1,981 |
| 13 | Falling Water (CDP), TN | 1,873 |
| 14 | Lakesite (city), TN | 1,856 |
| 15 | Mowbray Mountain (CDP), TN | 1,705 |
| 16 | Whitwell (city), TN | 1,641 |
| 17 | Graysville (town), TN | 1,471 |
| 18 | Powells Crossroads (town), TN | 1,296 |
| 19 | Lone Oak (CDP), TN | 1,198 |
| 20 | Ooltewah (CDP), TN | 684 |
Identifiers: city · CDP · town
| Rank | Community | Population |
|---|---|---|
| 1 | Chattanooga (city), TN | 181,099 |
| 2 | East Ridge (city), TN | 22,167 |
| 3 | Soddy-Daisy (city), TN | 13,070 |
| 4 | Red Bank (city), TN | 11,899 |
| 5 | Middle Valley (CDP), TN | 11,695 |
| 6 | Collegedale (city), TN | 11,109 |
| 7 | Signal Mountain (town), TN | 8,852 |
| 8 | Harrison (CDP), TN | 7,902 |
| 9 | Fairmount (CDP), TN | 2,193 |
| 10 | Lookout Mountain (town), TN | 2,058 |
| 11 | Walden (town), TN | 1,981 |
| 12 | Falling Water (CDP), TN | 1,873 |
| 13 | Lakesite (city), TN | 1,856 |
| 14 | Mowbray Mountain (CDP), TN | 1,705 |
| 15 | Lone Oak (CDP), TN | 1,198 |
| 16 | Ooltewah (CDP), TN | 684 |
| 17 | McDonald (CDP), TN | 586 |
| 18 | Ridgeside (city), TN | 446 |
| 19 | Whiteside (CDP), TN | 274 |