
Calhoun County
- State:
- Texas
- County Seat:
- Port Lavaca
Calhoun County's estimated 2025 population is 19,724 with a growth rate of 0.07% in the past year according to the most recent United States census data. Calhoun County is the 124th largest county in Texas. The 2010 population was 21,312 and has seen a growth of -7.45% since that time.