Get API Key →
US ZIP Code Profile

ZIP Code 77642
Port Arthur, Texas

ZIP code 77642 is in Port Arthur, located in Jefferson County, Texas, within the Beaumont-Port Arthur metro area. Its 2020 Census population was 39,017. The estimated median adjusted gross income per tax return is $32,374, and about 1% of filers report $200,000 or more.

2020 Population
39,017
Census ZCTA
County
Jefferson
FIPS 48245
Median income (est.)
$32,374
IRS SOI 2022
Land Area
19.698 mi²
+ 1.819 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CityPort Arthur, TX
CountyJefferson County (FIPS 48245)
StateTexas (FIPS 48)
Metro Area (MSA)Beaumont-Port Arthur, TX Metro Area (13140)
Census Region / DivisionSouth Region · West South Central Division
Coordinates29.95802, -93.89192
Land / Water Area19.698 mi² land · 1.819 mi² water

02Income & Economics

Distribution of the 14,530 individual tax returns filed in 77642 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
42.3%
$25K–$50K
26.0%
$50K–$75K
14.6%
$75K–$100K
7.8%
$100K–$200K
7.8%
$200K+
1.5%
The $200,000+ bracket accounts for 10% of 77642's total adjusted gross income, from 1% of returns — a concentration that drives the gap between the median ($32,374) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 77642's IRS income metrics, 2020–2022.

Median income (2021→2022)
$32,374
▲ 7.3%
Filers earning $200K+
1.5%
▲ 0.2 pt
Total filers
14,530
▼ 0.4%
GET /zipc/v2/zipcodes/77642/soi?year=… $29K 2020 $30K 2021 $32K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 77642 ZCTA.

2000
36,958
 
2010
37,111
▲ +0.4%
2020
39,017
▲ +5.1%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 77642. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 77642

Port Arthur and its immediate neighbors, sorted by distance.

3 mi
GET /zipc/v2/distance

Distance from 77642 to any ZIP

Enter a 5-digit ZIP to calculate the distance.

06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number487195
City AliasesPort Arthur

07Frequently Asked Questions

What county is ZIP code 77642 in?

ZIP code 77642 is in Jefferson County, Texas (county FIPS code 48245).

What city is ZIP code 77642?

The primary USPS city for 77642 is Port Arthur, TX.

What metro area (MSA) is 77642 in?

77642 is part of the Beaumont-Port Arthur, TX Metro Area (MSA code 13140).

What is the population of ZIP code 77642?

The 2020 Census population of 77642 was 39,017 residents.

What is the median income in ZIP code 77642?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 77642 is about $32,374, with around 1% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.