Hays County Flag

Hays County

State:
Texas
County Seat:
San Marcos

Hays County's estimated 2025 population is 303,252 with a growth rate of 3.9% in the past year according to the most recent United States census data. Hays County is the 19th largest county in Texas. The 2010 population was 158,086 and has seen a growth of 91.83% since that time.

303,252
Total Population
448
Population Density (mi²)
19
Population Rank (State)
11.4K 3.9%
Annual Population Growth

Hays County Population

Demographics

Economics and Income Statistics