Zip Code 77640 — Port Arthur, TX

ZIP Code 77640 is associated with Port Arthur, TX, in Jefferson County. The listed population estimate is 17,167; estimated density is 177.8 people per square mile. Among records with population estimates, it ranks #6 of 17 in Jefferson County and #641 of 1,924 in TX.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (29.880210, -93.941520)

Data MetricLocal Statistic
Postal / Zip Code77640
Primary CityPort Arthur
State / ProvinceTX
CountyJefferson
Total Population17,167
Population Density177.8 people/sq mi
TimezoneAmerica/Chicago

How 77640 Compares

MetricZIP 77640Jefferson County recordsTX records
Population estimate17,167252,884 (sum)30,188,035 (sum)
Population Density177.8 /sq mi----
County population rank#6 of 17----
State population rank#641 of 1,924----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in TX

ZIP CodeCityDistancePopulation estimate
ZIP 77642Port Arthur4.3 mi38,358
ZIP 77619Groves4.8 mi16,976
ZIP 77651Port Neches6.9 mi13,664
ZIP 77627Nederland8.6 mi22,357
ZIP 77655Sabine Pass11.5 mi330

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 →