8 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Springfield | 1 | 20,358 | 18,809 | 1.28% | 1,491 | 14 | City |
| White House | 2 | 18,141 | 13,106 | 4.85% | 1,541 | 12 | City |
| Greenbrier | 3 | 7,080 | 6,957 | 0.3% | 975 | 7 | Town |
| Ridgetop | 4 | 2,162 | 2,105 | 0.46% | 714 | 3 | City |
| Cross Plains | 5 | 1,968 | 1,785 | 1.6% | 226 | 9 | City |
| Orlinda | 6 | 1,034 | 947 | 1.47% | 157 | 7 | City |
| Adams | 7 | 687 | 624 | 1.63% | 287 | 2 | City |
| Cedar Hill | 8 | 304 | 304 | 0% | 488 | 1 | City |
Springfield is the largest city in Robertson County, with a population of 20,358.
Cedar Hill is the smallest city in Robertson County, with a population of 304.
There are 8 cities in Robertson County, Tennessee.