Founded in 1844, Grundy County is one of 95 counties in the state of Tennessee. Historically, Grundy County was formed from Coffee, Warren and Franklin counties. The city of Altamont is the county seat. With FIPS code of 61, Grundy County has a population of 13,622 and area of 361 square miles (935 km2).
List of all cities in Grundy County, TN alphabetically
| City/Town | Postal Code | Area Code |
| Altamont, TN | 37301 | 931 |
| Beersheba Springs, TN | 37305 | 931 |
| Coalmont, TN | 37313 | 931 |
| Gruetli, TN | 37339 | 931 |
| Gruetli Laager, TN | 37339 | 931 |
| Laager, TN | 37339 | 931 |
| Monteagle, TN | 37356 | 931 |
| Palmer, TN | 37365 | 931 |
| Pelham, TN | 37366 | 931 |
| Tracy City, TN | 37387 | 931 |