Founded in 1871, Aransas County is one of 254 counties in the state of Texas. Historically, Aransas County was formed from Refugio County. The city of Rockport is the county seat. With FIPS code of 7, Aransas County has a population of 24,510 and area of 252 square miles (653 km2).
List of all cities in Aransas County, TX alphabetically
| City/Town | Postal Code | Area Code |
| Copano Village, TX | 78382 | 361 |
| Estes, TX | 78382 | 361 |
| Fulton, TX | 78358 | 361 |
| Fulton Beach, TX | 78358 | 361 |
| Lamar, TX | 78382 | 361 |
| Rockport, TX | 78381 | 361 |
| 78382 | 361 |