ZIP CodesZIP codes in Medina County, Texas
Medina County, Texas has 9 ZIP codes in this list, from 78009 to 78886. They cover 9 places, among them Castroville, Devine, La Coste and Mico.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 78009 | Castroville | 70.5 | 29.355, -98.882 |
| 78016 | Devine | 158 | 29.152, -98.909 |
| 78039 | La Coste | 20.7 | 29.308, -98.812 |
| 78056 | Mico | 103 | 29.544, -98.923 |
| 78059 | Natalia | 40.5 | 29.212, -98.855 |
| 78066 | Rio Medina | 22.2 | 29.461, -98.869 |
| 78850 | D Hanis | 241 | 29.340, -99.284 |
| 78861 | Hondo | 491 | 29.348, -99.141 |
| 78886 | Yancey | 73.1 | 29.140, -99.143 |
The ZIP code areas of Medina County add up to about 1,220 square miles of land (3,161 sq km) as the Census Bureau draws them. The largest is 78861 (Hondo), with 491 square miles.
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Castroville, TX 78009.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.