Residential delivery area · Texas
ZIP Code 77640: Port Arthur, TX
ZIP code 77640 is in Port Arthur, Texas, entirely in Jefferson County (Census 2020 ZIP-county file). About 17,000 people live there (Census Bureau, ACS 2020-2024), the less populous of Port Arthur's 2 residential ZIP codes. Median household income is $50,973 (Census Bureau, ACS 2020-2024). By Census place, 81% of its land lies in Port Arthur; 19% 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
- 37.3 sq mi · 460 people per sq mi
Where is ZIP code 77640?
77640 centers on 29.881°, -93.941° and covers 37.3 square miles of land plus 32.7 of water. It borders 5 ZIP codes: 77642, 77627, 77655, 77705, 70631.
The map draws ZIP code areas only. For the streets inside 77640, 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 77640 compare with the rest of Port Arthur?
| Measure | 77640 | In Port Arthur | In Jefferson County | In TX |
|---|---|---|---|---|
| People (ACS 2020-2024) | 17,167 | 2nd of 2 | 6th of 18 | 641st of 1,990 |
| Median household income | $51k | 1st of 2 | 10th of 13 | 1,034th of 1,172 |
| Median home value | $110k | 1st of 2 | 11th of 14 | 1,078th of 1,172 |
Its median household income is higher than in 15% of U.S. residential ZIP codes, and it is denser than 71% 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 77640?
The 2020 Census counted 16,618 people in 77640; the ACS, which samples households over 2020-2024, estimates 17,167. Between the 2010 and 2020 censuses its population fell 1.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 17,167
- 2020 Census count
- 16,618−1.5% since 2010 (16,875)
- Households
- 7,175
- Median age
- 39.2
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 77640?
Of the 17,167 people the ACS estimates in 77640, 22.1% are under 18 and 18.5% are 65 or older. The largest group by race and Hispanic origin is Black (not Hispanic) (51.0%), then Hispanic or Latino (23.8%).
- Under 1822.1%
- 18 to 6459.4%
- 65 and older18.5%
- Black, not Hispanic51.0%
- Hispanic or Latino23.8%
- White, not Hispanic20.7%
- Asian, not Hispanic3.3%
- Other or two or more1.2%
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 77640 earn?
Median household income is $50,973 (ACS 2020-2024), the 10th highest of the 13 ranked ZIP codes in Jefferson County. It is not measurably different from 2015-2019 ($47,023 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $50,973
- Income per person
- $29,587
- Below the poverty line
- 23.2%
- Unemployed (of the labor force)
- 9.7%
- Adults 25+ with a bachelor's degree
- 15.0%
- Adjusted gross income per tax return, 2022
- $46,4506,710 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 77640?
FHFA's house price index for 77640, built from repeat sales and appraisals of the same homes, rose 79% from 2015 to 2025 and rose 45% from 2020 to 2025, and moved +7.5% in 2025.
- Median home value (owners' estimate)
- $109,600
- Median gross rent
- $1,254
- Homes owned by their occupants
- 67.2%
- Housing units
- 9,003
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 77640?
313 business establishments had a location in this ZIP code in 2023, 13 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade62
- Accommodation and food services40
- Other services (except public administration)39
- Health care and social assistance32
- Wholesale trade22
- Administrative and support and waste management and remediation services22
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 77640?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 77642 | Port Arthur | 38,358 | $43k | 6.1 mi |
| 77627 | Nederland | 22,357 | $78k | 8.6 mi |
| 77655 | Sabine Pass | 330 | $74k | 11.8 mi |
| 77705 | Beaumont | 38,259 | $55k | 14.2 mi |
| 70631 | Cameron, LA | 370 | $63k | 22.4 mi |
| 77619 | Groves | 16,976 | $74k | 4.8 mi (near) |
| 77651 | Port Neches | 13,664 | $82k | 6.9 mi (near) |
| 77611 | Bridge City | 10,112 | $92k | 11.5 mi (near) |
| 77630 | Orange | 28,983 | $64k | 13.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.