Residential delivery area · Texas
ZIP Code 77642: Port Arthur, TX
ZIP code 77642 is in Port Arthur, Texas, entirely in Jefferson County (Census 2020 ZIP-county file). About 38,000 people live there (Census Bureau, ACS 2020-2024), the more populous of Port Arthur's 2 residential ZIP codes. Median household income is $42,950 (Census Bureau, ACS 2020-2024). By Census place, 86% of its land lies in Port Arthur, and 3% in smaller places; 11% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Port Arthur · 2 residential ZIPs
- County
- Jefferson County
- Census places
- Port Arthur
- Metro area
- Beaumont-Port Arthur, TX
- House district
- TX-14 119th Congress
- State
- Texas
- Time zone
- Central
- Land area
- 19.7 sq mi · 1,945 people per sq mi
Where is ZIP code 77642?
77642 centers on 29.958°, -93.892° and covers 19.7 square miles of land plus 1.8 of water. It borders 6 ZIP codes: 77619, 77651, 77611, 77640, 77627, 77630.
The map draws ZIP code areas only. For the streets inside 77642, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 77642 compare with the rest of Port Arthur?
| Measure | 77642 | In Port Arthur | In Jefferson County | In TX |
|---|---|---|---|---|
| People (ACS 2020-2024) | 38,358 | 1st of 2 | 1st of 18 | 255th of 1,990 |
| Median household income | $43k | 2nd of 2 | 12th of 13 | 1,120th of 1,172 |
| Median home value | $105k | 2nd of 2 | 12th of 14 | 1,089th of 1,172 |
Its median household income is higher than in 8% of U.S. residential ZIP codes, and it is denser than 84% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 77642?
The 2020 Census counted 39,017 people in 77642; the ACS, which samples households over 2020-2024, estimates 38,358. Between the 2010 and 2020 censuses its population grew 5.1% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 38,358
- 2020 Census count
- 39,017+5.1% since 2010 (37,111)
- Households
- 14,306
- Median age
- 32.3
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 77642?
Of the 38,358 people the ACS estimates in 77642, 30.0% are under 18 and 13.1% are 65 or older. The largest group by race and Hispanic origin is Hispanic or Latino (42.4%), then Black (not Hispanic) (38.1%).
- Under 1830.0%
- 18 to 6457.0%
- 65 and older13.1%
- Hispanic or Latino42.4%
- Black, not Hispanic38.1%
- White, not Hispanic13.1%
- Asian, not Hispanic5.0%
- Other or two or more1.4%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 77642 earn?
Median household income is $42,950 (ACS 2020-2024), the 12th highest of the 13 ranked ZIP codes in Jefferson County. It is not measurably different from 2015-2019 ($43,860 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $42,950±$4,430
- Income per person
- $24,940
- Below the poverty line
- 31.8%
- Unemployed (of the labor force)
- 7.8%
- Adults 25+ with a bachelor's degree
- 11.6%
- Adjusted gross income per tax return, 2022
- $45,65214,530 returns; wages 85% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 77642?
FHFA's house price index for 77642, built from repeat sales and appraisals of the same homes, rose 72% from 2015 to 2025 and rose 43% from 2020 to 2025, and moved +5.6% in 2025.
- Median home value (owners' estimate)
- $104,700
- Median gross rent
- $948
- Homes owned by their occupants
- 53.0%
- Housing units
- 16,446
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 77642?
535 business establishments had a location in this ZIP code in 2023, 17 fewer than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade102
- Health care and social assistance85
- Accommodation and food services73
- Other services (except public administration)50
- Finance and insurance44
- Professional, scientific, and technical services34
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 77642?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 77619 | Groves | 16,976 | $74k | 1.7 mi |
| 77651 | Port Neches | 13,664 | $82k | 3.7 mi |
| 77611 | Bridge City | 10,112 | $92k | 5.5 mi |
| 77640 | Port Arthur | 17,167 | $51k | 6.1 mi |
| 77627 | Nederland | 22,357 | $78k | 7.2 mi |
| 77630 | Orange | 28,983 | $64k | 7.6 mi |
| 77701 | Beaumont | 12,381 | $49k | 15.0 mi (near) |
| 77702 | Beaumont | 3,121 | $62k | 16.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.