ZipCodesToGo
Texas ZIP Codes
Clay County
Petrolia, TX
76377
76377 ZIP Code — Petrolia, TX
Clay County, Texas
ZIP code 76377 is located in
Petrolia ,
Texas ,
within Clay County .
It covers approximately 26.68 square miles and serves a population of
438 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 940 .
About ZIP code 76377
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1960s, giving the area an established character. Median home value is $84,800. Owner-occupancy is high at 83%, well above the national average.
Median household income is $52,857. 58% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is sales and office, with education and healthcare as the leading industry. The average commute of 20 minutes is near the national average.
College attainment at 13% is below the national average, consistent with a trades and production-oriented local economy.
Notable community characteristics include a notable veteran presence at 11% of civilians, above the national average of 7%; and disability rates above the national average at 38%.
Overall, ZIP code 76377 reflects a community defined by a trades-oriented workforce, a strong veteran community, high homeownership, and a significant Social Security-dependent population.
76377 ZIP code map
View map of 76377
Cities in ZIP code 76377
Below are the cities the US Postal Service accepts for ZIP code 76377. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 06/2026
Population
Total population
438
Population density
16 / sq mi
State FIPS
48
County FIPS
077
Geography
Land area
26.68 sq mi
Water area
0.21 sq mi
Latitude
34.0175
Longitude
-98.1806
Timezone
Central (CT)
Area code
940
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
59.9%
47.7%
39.5%
$50k – $100k
28.6%
30.9%
30.1%
$100k – $200k
11.5%
15.9%
22.6%
Over $200k
0.0%
5.5%
7.8%
Demographics & statistics
$52,857
Median household income
13.3%
Bachelor's or higher
Age distribution
Age summary
Group Count % Under 18 72 16.4% 18 and over 366 83.6% 65 and over 133 30.4% Median age 54.6 years
Race & ethnicity
Household income
Income range
This ZIP
County avg
State avg
Under $50k
59.9%
47.7%
39.5%
$50k – $100k
28.6%
30.9%
30.1%
$100k – $200k
11.5%
15.9%
22.6%
Over $200k
0.0%
5.5%
7.8%
Range % of households Under $10k 3.3% $10k–$15k 8.1% $15k–$25k 11.0% $25k–$35k 15.7% $35k–$50k 11.4% $50k–$75k 15.7% $75k–$100k 17.6% $100k–$150k 13.3% $150k–$200k 2.4% $200k+ 1.4% Median income $52,857
Housing
Housing overview
Metric Value Median home value $84,800 Median rent / month $625 Owner occupied 82.9% Renter occupied 17.1% Vacant 32.0% Single-family detached 79.9% Large apartment buildings 0.0% Mobile homes 17.5% Median rooms 5.3 Avg household size (owned) 2.13
Year built
Era % 2020 or later 0.0% 2010–2019 0.0% 2000–2009 7.1% 1990–1999 11.0% 1980–1989 2.9% 1970–1979 13.3% 1960–1969 21.0% 1950–1959 15.9% 1940–1949 15.2% 1939 or earlier 13.6%
Bedrooms
Size % of units No bedroom (studio) 0.0% 1 bedroom 4.2% 2 bedrooms 37.2% 3 bedrooms 48.5% 4 bedrooms 7.8% 5+ bedrooms 2.3%
Vehicles per household
Vehicles % of households No vehicle 3.3% 1 vehicle 40.5% 2 vehicles 41.9% 3 or more 14.3%
Heating fuel
Fuel type % Utility gas 64.8% Electricity 35.2%
Households & families
Household type Count % Married-couple family 75 35.7% Cohabiting couple 0 0.0% Male householder, no spouse 57 27.1% Female householder, no spouse 78 37.1% Households with children under 18 55 26.2% Households with seniors (65+) 96 45.7% Average household size 2.09
Marital status
Status Male Female Never married 23.5% 9.9% Married 44.4% 36.2% Separated 0.0% 9.4% Widowed 11.8% 22.5% Divorced 20.3% 22.1%
Education
Some college, no degree
22.5%
Graduate / professional
3.6%
Metric % HS diploma or higher 92.3% Bachelor's or higher 13.3%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 12 18.2% Kindergarten 2 3.0% Elementary school 32 48.5% High school 13 19.7% College / grad school 7 10.6%
Employment
Industry of employment
Education & healthcare
25.0%
Transportation & utilities
19.2%
Agriculture & mining
13.5%
Finance & real estate
5.1%
Public administration
3.2%
Professional & management
0.6%
Occupation
Category % Management, business & arts 20.5% Service 17.9% Sales & office 25.6% Natural resources & construction 15.4% Production & transportation 20.5%
Employment type
Type % Private sector 78.8% Government 10.3% Self-employed 10.9% Unpaid family workers 0.0%
Commute
Method % Drive alone 95.5% Carpool 4.5% Public transit 0.0% Walk 0.0% Work from home 0.0% Other means 0.0% Avg commute (minutes) 19.9
Poverty
Married-couple families
6.7%
Female-led households
23.3%
Income support
Source % of households Social Security 57.6% Retirement income 31.9% Supplemental Security 15.2% Cash public assistance 3.8% Food stamps / SNAP 16.7%
Health indicators
Condition % Obesity 33.6% High blood pressure 36.7% High cholesterol 36.9% Diabetes 11.4% Heart disease 7.5% Stroke 3.3% Asthma 9.3% Arthritis 26.6% Kidney disease 3.1% Pulmonary disease 8.0% Cancer 7.6%
Behavior / access % Smoking 18.8% Binge drinking 18.2% No physical activity 23.5% Less than 7 hrs sleep 32.7% Depression 23.3% Fair or poor health 16.0% Poor mental health 15.3% Poor physical health 11.6% No health insurance 20.6% Visited doctor (checkup) 72.3% Visited dentist 58.4% Cholesterol screening 90.0% Teeth loss 13.5%
Veterans & disability
Veterans Count % Civilian veterans 41 11.2%
Disability % Any disability 37.9% Under 18 12.5% 18–64 years 39.9% 65 and over 48.1%
Health insurance coverage
Type % Private insurance 42.7% Public insurance 62.8% No insurance 14.8% Uninsured under 19 13.9%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 406 92.7% Spanish 10 2.5% Other Indo-European 10 2.5% Asian & Pacific Islander 0 0.0% Other languages 0 0.0%
Place of birth & citizenship
Origin Count % Native born (US) 428 97.7% Born in same state 423 96.6% Born in different state 290 66.2% Foreign born 5 1.1% Naturalized citizen 10 2.3% Not a US citizen 0 0.0%
Ancestry
Ancestry Count % French 31 7.1%
Ancestry Count % Italian 13 3%
Technology access
Metric % of households Computer access 47.9% Internet access 81.4%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 76377
What city is ZIP code 76377 in?
ZIP code 76377 is primarily assigned to Petrolia, Texas.
What county is ZIP code 76377 in?
ZIP code 76377 falls within Clay County, Texas.
Does ZIP code 76377 have a large retiree population?
58% of households in ZIP code 76377 receive Social Security income, suggesting a significant retiree or disability population.
Does ZIP code 76377 have an older population?
30% of residents in ZIP code 76377 are 65 or older, above the national average of ~17%.
How educated is the population of ZIP code 76377?
13% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.
Is ZIP code 76377 mostly owner-occupied?
83% of occupied units in ZIP code 76377 are owner-occupied, well above the national average.
What timezone is ZIP code 76377 in?
ZIP code 76377 observes the CST timezone.
Need the complete ZIP code database?
Download all 42,000+ US ZIP codes — Excel, CSV, or Access. Includes lat/lng, county FIPS & timezone.
Download database →
