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Zip Code 77642 — Port Arthur, TX

77642 is a ZIP Code associated with Port Arthur, TX, located within Jefferson. The postal region supports an estimated population of 38,358 residents across Data Pending housing units, with a population density of 750.9 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (29.939170, -93.916060)

Data MetricLocal Statistic
Postal / Zip Code77642
Primary CityPort Arthur
State / ProvinceTX
CountyJefferson
Total Population38,358
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density750.9 people/sq mi
TimezoneAmerica/Chicago

How 77642 Compares

MetricZIP 77642Jefferson CountyTX State Average
Population38,358252,88430,188,035
Median IncomeData PendingN/AN/A
Population Density750.9 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 77619Groves0.4 mi16,976N/A
Zip 77651Port Neches3.4 mi13,664N/A
Zip 77640Port Arthur4.3 mi17,167N/A
Zip 77627Nederland6.6 mi22,357N/A
Zip 77611Bridge City7.6 mi10,112N/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 →