U.S. PLACE PROFILE
San Marcos, TX
San Marcos is a City in Hays County, Texas. The loaded 2025 population estimate is 77,830.
Published locationTexas
Population estimate77,8302025 loaded Census estimate
CountyHays CountyPrimary loaded county
Place typeCityCensus place classification
Coordinates29.87361, -97.93673Census representative point
EXPLORE FROM SAN MARCOS
Distance and nearby-place tools
Only tools with enough qualifying stored data are linked below.
Closest published places
Nearest qualifying Census places by straight-line distance.
Martindale, TX6.2 miles · E
Kyle, TX8.9 miles · N→Staples, TX10.2 miles · SE
Uhland, TX11.0 miles · NE
Mountain City, TX11.8 miles · N
Wimberley, TX12.0 miles · NW
County coverage
Some incorporated places cross county lines. These county-part values come from the loaded Census county-place-part population layer.
| County | 2025 population in this place part |
|---|---|
| Caldwell County | 0 |
| Guadalupe County | 0 |
| Hays County | 77,830 |
DATA COVERAGE
What is available for San Marcos
Geographic identityNearby placesPopulation estimate2-hour drive range1-hour drive range100-mile radius25-mile radius50-mile radius
PRIMARY GEOGRAPHIC SOURCE
U.S. Census Bureau
Place identity, coordinates and geographic identifiers are tied to the loaded Census source record for this location.