Home > TX > Calhoun County > Port Lavaca > Zip 77979

Zip Code 77979 — Port Lavaca, TX

77979 is a ZIP Code associated with Port Lavaca, TX, located within Calhoun. The postal region supports an estimated population of 16,488 residents across Data Pending housing units, with a population density of 18.7 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (28.602480, -96.601700)

Data MetricLocal Statistic
Postal / Zip Code77979
Primary CityPort Lavaca
State / ProvinceTX
CountyCalhoun
Total Population16,488
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density18.7 people/sq mi
TimezoneAmerica/Chicago

How 77979 Compares

MetricZIP 77979Calhoun CountyTX State Average
Population16,48819,94130,188,035
Median IncomeData PendingN/AN/A
Population Density18.7 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 77978Point Comfort6.2 mi304N/A
Zip 77969La Salle12.3 mi84N/A
Zip 77982Port O'Connor12.7 mi620N/A
Zip 77991Vanderbilt12.7 mi440N/A
Zip 77977Placedo13.3 mi539N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →