ZIP Code 77640

ZIP code 77640 is classified by USPS as a standard delivery area and covers roughly 99.9 square miles in Port Arthur, Jefferson County, Texas. The area is home to 16,875 residents, producing a population density of 169 people per square mile, and falls within the Chicago time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 77640 against Texas and the nation.

On the economic side, the median household income for ZIP 77640 sits at $50,973 (33% below the Texas average), while per-capita income is $29,587. The poverty rate stands at 23.2% and the unemployment rate at 9.6%. On housing, the median home value is $109,600 (56% below the state average) with median rent at $1,254 per month, and 67.2% of occupied units are owner-occupied, a direct signal of whether 77640 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 15.0% of adults hold a bachelor's degree or higher, the median age is 39.2, and the average commute is 20 minutes. We also surface 5 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Jefferson County, so you can benchmark 77640 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →