Calhoun County, Texas
Calhoun County, Texas, has 19,599 residents (July 2025 estimate). Its county seat is Port Lavaca. It uses Central Time and covers 507 sq mi (1,313 km²) of land.
- Resident population, July 2025
- 19,599
- Land area
- 507 sq mi (1,313 km²)
- County seat or government
- Port Lavaca
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $79,959 ± $8,800
- Median home value
- $171,200 ± $15,765
- Median rent, with utilities
- $891 ± $314
- Homes lived in by their owners
- 77.3% ± 2.8 points
- County type
- County
- Metro or micro area
- Port Lavaca, TX micro areaCentral county
- Water area
- 526 sq mi (1,362 km²)
- State
- Texas
- County code (FIPS)
- 48057
- Coordinates (central point)
- 28.441719, -96.579574
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in Calhoun County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Central TimeAmerica/Chicago | UTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
6 ZIP Code areas overlap Calhoun County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
School districts in Calhoun County, largest first
- Calhoun County Independent School District19,868 people
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Port Lavaca, Texas (city)11,358 people
- Seadrift, Texas (city)1,239 people
- Port O'Connor, Texas (CDP)620 people
- Point Comfort, Texas (city)304 people
- Magnolia Beach, Texas (CDP)97 people
- Alamo Beach, Texas (CDP)90 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Aransas County, Texas32 mi southwest
- Victoria County, Texas34 mi northwest
- Jackson County, Texas36 mi north
- Refugio County, Texas36 mi west
- Matagorda County, Texas42 mi northeast
Before using this answer on a form
Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.
Find the county where you are now, check its ZIP area, or check the time zone where you are.