Zip Code 77642
Port Arthur, Texas — Jefferson County
📍 ZIP code 77642 is in Port Arthur, Jefferson County, Texas.
ZIP code 77642 is located in Port Arthur, Jefferson County, Texas. It is a zip code in the Central (CST/CDT) Time Zone with an estimated population of 38,051. The area code for ZIP code 77642 is 713.
Quick Answer
Zip code 77642 is in Port Arthur, Texas (Jefferson County). It has a population of 38,051, median household income of $41,677, and median home value of $96,100.
Population
38,051
Income
$41,677
Home Value
$96,100
Climate
93°F / 44°F
About Zip Code 77642
Zip code 77642 is located in Port Arthur, Texas, within Jefferson County. Home to approximately 38,051 residents, this area sits at an elevation of 9 ft and falls within the Central (CST/CDT) timezone. The local area code is 713.
The median household income is $41,677 per year, which is below the national median of $70,784. Homes in this zip code have a median value of $96,100, and the cost of living index is 60 (40% below the national average of 100).
Summers average a high of 93°F while winters drop to 44°F. The area receives about 62 in of rain annually. The zip code covers 19.7 square miles of land area and 1.8 square miles of water.
Key Statistics
38,051
$41,677
$96,100
Central (CST/CDT)
713
9 ft
19.7 sq mi
31.8
16,234
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Compare With Nearby Zip Codes
| Metric | 77642 | 77619 | 77651 | 77611 | 77640 | 77627 |
|---|---|---|---|---|---|---|
| City | Port Arthur, TX | Groves, TX | Port Neches, TX | Bridge City, TX | Port Arthur, TX | Nederland, TX |
| Population | 38,051 | 17,021 | 13,627 | 9,550 | 17,480 | 21,951 |
| Median Income | $41,677 | $70,485 | $84,335 | $102,791 | $50,832 | $75,778 |
| Home Value | $96,100 | $153,800 | $231,000 | $199,200 | $97,200 | $201,200 |
| Cost of Living | 60 | 66 | 93 | 91 | 60 | 78 |
| Median Age | 31.8 | 41.1 | 39.6 | 36.7 | 37.7 | 37.7 |
Cost of Living
100 = National Average. Port Arthur's cost of living is 40% below the national average.
vs. State Avg
Below
Affordability
Very Affordable
Income-to-Home
2.3x
Demographics
Zip code 77642 has a population of 38,051 people with a median age of 31.8. There are 16,234 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Port Arthur (77642) population trend from 2010 to 2024
↑ 4.6%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
93°F
44°F
62 in
0 in
Port Arthur experiences hot summers with average highs around 93°F. Winters are mild with lows averaging 44°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$96,100
Median Household Income
$41,677
With 16,234 housing units across 19.7 square miles, 77642 has a housing density of 824 units per square mile. The home price-to-income ratio is 2.3x.
Location & Geography
Latitude
29.9580°
Longitude
-93.8919°
Land Area
19.7 sq mi
Water Area
1.8 sq mi
Nearby Zip Codes
Zip codes closest to 77642 (Port Arthur, TX) with distances:
All Zip Codes in Port Arthur, TX
Other zip codes serving Port Arthur:
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ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 77642's $41,677. A way to compare Port Arthur to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 77642 (Port Arthur, TX). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Port Arthur, Texas?
Port Arthur, Texas uses zip code 77642 along with 1 other zip codes.
What county is zip code 77642 in?
Zip code 77642 is located in Jefferson County, Texas.
What is the population of zip code 77642?
The population of zip code 77642 is 38,051 with a median age of 31.8.
Is 77642 in Port Arthur, Texas?
Yes, zip code 77642 is in Port Arthur, Jefferson County, Texas. The area code is 713.
Frequently Asked Questions
What city is zip code 77642 in?
Zip code 77642 is in Port Arthur, Texas. It is part of Jefferson County and uses the Central (CST/CDT) timezone.
What is zip code 77642?
Zip code 77642 is a U.S. postal code in Port Arthur, Texas (Jefferson County). It has a population of 38,051 and covers 19.7 square miles.
What is the population of zip code 77642?
The population of zip code 77642 (Port Arthur, TX) is 38,051 with a median age of 31.8. There are approximately 16,234 housing units in this area.
What is the median income in zip code 77642?
The median household income in zip code 77642 (Port Arthur, TX) is $41,677 per year. The cost of living index is 60 (100 = national average).
What is the average home price in zip code 77642?
The median home value in zip code 77642 (Port Arthur, TX) is $96,100. The cost of living index is 60 compared to the national average of 100.
What county is zip code 77642 in?
Zip code 77642 is located in Jefferson County, Texas. The primary city is Port Arthur.
What is the area code for zip code 77642?
Zip code 77642 in Port Arthur, TX uses area code 713. It is located in the Central (CST/CDT) timezone.
Is zip code 77642 a good place to live?
Zip code 77642 (Port Arthur, TX) has a cost of living index of 60 (100 = national average), a median household income of $41,677, and median home values of $96,100. The median age is 31.8. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 77642?
The cost of living index for zip code 77642 (Port Arthur, TX) is 60, where 100 represents the national average. This area is below the national average. Median home value: $96,100.
What schools serve zip code 77642?
Zip code 77642 in Port Arthur, Texas is served by the local school district of Jefferson County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.