San Marcos, Texas
San Marcos, Texas, in Hays County, has ZIP codes 78666 and 78667 and area code 512, with 737 as an overlay.
- ZIP codes
- 78666, 78667
- Area codes
- 512, 737
- County
- Hays County
- State
- Texas
- Time zone
- Central Time
- Coordinates
- 29.9649, -97.9720
ZIP codes in San Marcos
Area codes for San Marcos
- Area code 512
In service since 1947. Shares its area with 737. Local calls are dialed with ten digits.
- Area code 737
In service since July 1, 2013. Shares its area with 512. Local calls are dialed with ten digits.
Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.
Time zone
San Marcos is in the Central Time zone.
Towns near San Marcos
Local numbers in area code 512
Looking for a phone number with a San Marcos area code? These 512 numbers are for sale through Exclusive Digits. Portable to Verizon, AT&T, T-Mobile and all major US carriers.
- (512) 697-2000Austin, TX$449View & buy
- (512) 400-4442Buda, TX$499View & buy
- (512) 400-4443Buda, TX$499View & buy
- (512) 233-7777Austin, TX$997View & buy
- (512) 287-5277Austin, TX$99View & buy
- (512) 287-5288Austin, TX$99View & buy
- (512) 650-1002Austin, TX$99View & buy
- (512) 650-1004Austin, TX$99View & buy
- (512) 650-1005Austin, TX$99View & buy
- (512) 650-1006Austin, TX$99View & buy
- (512) 650-1008Austin, TX$99View & buy
- (512) 650-1101Austin, TX$99View & buy
We may earn a commission when you buy through our links. Numbers are sold and delivered by Exclusive Digits.