78666 San Marcos
Statistics for ZIP Code 78666 in San Marcos
- Population: 60,684 people
- Elevation: 188 m
- Time zone: America/Chicago
- Nearest ZIP Code: 78655 Martindale (9.52 km)
- Geographical Coordinates: Latitude 29.8754, Longitude -97.9404
San Marcos is served by 6 zip codes in total. The 786xx range covers 80 zip codes across 67 localities. It sits in the south-east of Texas.