zip code 78666 is a zipcode of San Marcos, Texas state, usa. zip code of San Marcos and its population information along with its latitude and longitude coordinates.
ZIP Code 78666
- Zip Code
- 78666
- City
- San Marcos
- County
- Hays
- State
- Texas
- Latitude
- 29.894300
- Longitude
- -97.981100
- Population
- 63836