Founded in 1820, Trigg County is one of 120 counties in the state of Kentucky. Historically, Trigg County was formed from Christian County and Caldwell County. The city of Cadiz is the county seat. With FIPS code of 221, Trigg County has a population of 14,192 and area of 443 square miles (1,147 km2).
List of all cities in Trigg County, KY alphabetically
| City/Town | Postal Code | Area Code |
| Blue Spring, KY | 42211 | 270 |
| Blue Water Estates, KY | 42211 | 270 |
| Cadiz, KY | 42211 | 270 |
| Canton, KY | 42211 | 270 |
| Cerulean, KY | 42215 | 270 |
| Donaldson, KY | 42211 | 270 |
| Golden Pond, KY | 42211 | 270 |
| Ironton, KY | 42211 | 270 |
| Linton, KY | 42211 | 270 |
| Maggie, KY | 42211 | 270 |
| Maple Grove, KY | 42211 | 270 |
| Montgomery, KY | 42211 | 270 |
| Roaring Spring, KY | 42211 | 270 |
| Rockcastle, KY | 42211 | 270 |
| Trigg Furnace, KY | 42211 | 270 |