Founded in 1846, Guadalupe County is one of 254 counties in the state of Texas. Historically, Guadalupe County was formed from Bexar County and Gonzales County. The city of Seguin is the county seat. With FIPS code of 187, Guadalupe County has a population of 177,036 and area of 711 square miles (1,841 km2).
List of all cities in Guadalupe County, TX alphabetically
| City/Town | Postal Code | Area Code |
| Cibolo, TX | 78108 | 830 |
| Geronimo, TX | 78115 | 830 |
| Kingsbury, TX | 78638 | 830 |
| Live Oak, TX | 78154 | 830 |
| Marion, TX | 78124 | 830 |
| McQueeney, TX | 78123 | 830 |
| Schertz, TX | 78154 | 830 |
| Seguin, TX | 78155 | 830 |
| 78156 | 830 | |
| Selma, TX | 78154 | 830 |
| Staples, TX | 78670 | 512/737 |