7 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Murfreesboro | 1 | 172,029 | 153,816 | 2.16% | 2,676 | 64 | City |
| Smyrna | 2 | 61,998 | 53,515 | 2.81% | 1,829 | 34 | Town |
| La Vergne | 3 | 42,111 | 38,705 | 1.64% | 1,704 | 25 | City |
| Christiana | 4 | 5,949 | 4,701 | 7.15% | 672 | 9 | CDP |
| Rockvale | 5 | 2,039 | 1,592 | 7.15% | 471 | 4 | CDP |
| Eagleville | 6 | 1,001 | 823 | 3.62% | 315 | 3 | City |
| Walterhill | 7 | 114 | 158 | -14.29% | 38 | 3 | CDP |
Murfreesboro is the largest city in Rutherford County, with a population of 172,029.
Walterhill is the smallest city in Rutherford County, with a population of 114.
There are 7 cities in Rutherford County, Tennessee.