Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/TX/PORT-ARTHUR

Port Arthur ZIP codes, Texas

Port Arthur, TX has 4 ZIP codes (77642, 77640, 77641 and 77643) and area code 409. The largest is 77642.

USPS city name
4 ZIP codes
Overlapping the city
5 more
Population
55,828
Area code
409
State
Texas

Mail addressed to Port Arthur uses the ZIP codes above. 5 more ZIP codes cover part of the city but are addressed as somewhere else; they are listed separately below.

Port Arthur in numbers

About 55,828 people live in Port Arthur, in 21,630 households. The median household income is $46,354 a year, 41% below the Texas median of $78,476 (US: $80,734). The median owner-occupied home is valued at $107,400 (62% below the Texas median), and median gross rent is $1,021 a month. The median age is 35.5; 12.8% of adults 25 and over hold a bachelor's degree or higher (33.8% across Texas); the average commute takes 23 minutes.

Population55,828Port Arthur55,828
Households21,630Port Arthur21,630
Median age35.5Port Arthur35.5Texas35.6US 38.9
Median household income$46,354Port Arthur$46,354Texas$78,476US $80,734
Median home value$107,400Port Arthur$107,400Texas$283,800US $332,700
Median gross rent$1,021Port Arthur$1,021Texas$1,403US $1,413
Bachelor's degree or higher12.8%Port Arthur12.8%Texas33.8%US 35.7%
Mean commute23.4 minPort Arthur23.4 minTexas26.7 minUS 26.4 min
Population density739 / sq miPort Arthur739 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Port Arthur city. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Port Arthur

ZIP codes with the USPS city name Port Arthur
ZIP City Type Population Median income Median home
77642 Port Arthur , TX Standard 38,358 $42,950 $104,700
77640 Port Arthur , TX Standard 17,167 $50,973 $109,600
77641 Port Arthur , TX No street area — — —
77643 Port Arthur , TX No street area — — —

Other ZIP codes overlapping Port Arthur

These ZIP codes cover part of Port Arthur but are addressed as somewhere else.

ZIP codes overlapping Port Arthur
ZIP City Type Population Median income Median home
77619 Groves , TX Standard 16,976 $73,710 $163,600
77627 Nederland , TX Standard 22,357 $78,001 $208,700
77630 Orange , TX Standard 28,983 $64,373 $174,800
77655 Sabine Pass , TX Standard 330 $73,750 $147,000
77705 Beaumont , TX Standard 38,259 $54,633 $135,900

Map of Port Arthur ZIP codes

77642776407764177643

The ZIP codes of Port Arthur, TX, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Port Arthur

The nearest larger towns are Beaumont (113,279 people, 20 mi), Lake Charles, LA (81,143 people, 46 mi) and Baytown (85,205 people, 65 mi).

Towns near Port Arthur
TownPopulationDistance
Groves 16,976 3.4 mi
Port Neches 13,664 5.8 mi
Nederland 18,381 8.0 mi
Bridge City 9,640 9.7 mi
Central Gardens 3,976 9.7 mi
West Orange 3,420 14.8 mi
Vidor 9,708 16.8 mi
Orange 19,177 17.6 mi
Beaumont 113,279 19.7 mi
Mauriceville 2,945 22.9 mi
Vinton, LA 3,176 27.7 mi
Winnie 3,290 29.7 mi

More nearby: every ZIP code in Jefferson County · Texas ZIP codes

Cite this page

zipcodes.pro. “Port Arthur, TX ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/tx/port-arthur

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