8 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Gruetli-Laager | 1 | 1,812 | 1,741 | 0.78% | 143 | 12.68 | City |
| Tracy City | 2 | 1,456 | 1,403 | 0.76% | 313 | 4.66 | Town |
| Monteagle | 3 | 1,414 | 1,386 | 0.43% | 156 | 9.04 | Town |
| Altamont | 4 | 1,170 | 1,125 | 0.78% | 59 | 19.82 | Town |
| Coalmont | 5 | 827 | 786 | 0.98% | 137 | 6.06 | City |
| Palmer | 6 | 583 | 550 | 1.22% | 118 | 4.93 | Town |
| Beersheba Springs | 7 | 462 | 434 | 1.32% | 96 | 4.80 | Town |
| Pelham | 8 | 423 | 334 | 0.24% | 25 | 16.64 | CDP |
Gruetli-Laager is the largest city in Grundy County, with a population of 1,812.
Pelham is the smallest city in Grundy County.
There are 8 cities in Grundy County, Tennessee.