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Texas ZIP Codes
Leon County
Buffalo, TX
75831
75831 ZIP Code — Buffalo, TX
Leon County, Texas
ZIP code 75831 is located in
Buffalo ,
Texas ,
within Leon County .
It covers approximately 250.96 square miles and serves a population of
5,152 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 430/903 .
About ZIP code 75831
The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $95,400. Owner-occupancy sits near the national average at 70%.
Median household income is $47,358. 33% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is production, transportation, and material moving, with agriculture and mining as the leading industry. The average commute of 31 minutes is near the national average.
College attainment at 9% is below the national average, consistent with a trades and production-oriented local economy.
Health indicators show elevated rates of smoking (24%) compared to national benchmarks. 22% of residents lack health insurance, above the national average.
Notable community characteristics include disability rates above the national average at 26%.
Overall, ZIP code 75831 reflects a community defined by a trades-oriented workforce and a significant Social Security-dependent population.
75831 ZIP code map
View map of 75831
Cities in ZIP code 75831
Below are the cities the US Postal Service accepts for ZIP code 75831. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 07/2026
Population
Total population
5,152
Population density
21 / sq mi
State FIPS
48
County FIPS
289
Geography
Land area
250.96 sq mi
Water area
1.38 sq mi
Latitude
31.4201
Longitude
-96.0039
Timezone
Central (CT)
Area code
430/903
Economics
updated 07/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
57.3%
52.6%
39.5%
$50k – $100k
24.4%
26.7%
30.1%
$100k – $200k
17.0%
16.2%
22.6%
Over $200k
1.4%
4.4%
7.8%
Demographics & statistics
$47,358
Median household income
Age distribution
Age summary
Group Count % Under 18 1,113 21.6% 18 and over 4,039 78.4% 65 and over 981 19.0% Median age 41.2 years
Race & ethnicity
Black or African American
11.4%
American Indian / Alaska Native
0.1%
Group Count % White 3,982 72.3% Black or African American 628 11.4% Hispanic or Latino 357 6.5% Two or more races 301 5.5% Other race 235 4.3% American Indian / Alaska Native 6 0.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
57.3%
52.6%
39.5%
$50k – $100k
24.4%
26.7%
30.1%
$100k – $200k
17.0%
16.2%
22.6%
Over $200k
1.4%
4.4%
7.8%
Range % of households Under $10k 11.9% $10k–$15k 3.8% $15k–$25k 14.2% $25k–$35k 7.7% $35k–$50k 15.2% $50k–$75k 16.4% $75k–$100k 8.0% $100k–$150k 16.1% $150k–$200k 5.3% $200k+ 1.3% Median income $47,358
Housing
Housing overview
Metric Value Median home value $95,400 Median rent / month $922 Owner occupied 70.4% Renter occupied 29.6% Vacant 23.6% Single-family detached 55.0% Large apartment buildings 0.7% Mobile homes 38.9% Median rooms 5.1 Avg household size (owned) 2.41
Year built
Era % 2020 or later 0.0% 2010–2019 11.5% 2000–2009 15.4% 1990–1999 23.6% 1980–1989 21.3% 1970–1979 8.1% 1960–1969 4.1% 1950–1959 9.0% 1940–1949 3.7% 1939 or earlier 3.4%
Bedrooms
Size % of units No bedroom (studio) 1.3% 1 bedroom 6.4% 2 bedrooms 25.3% 3 bedrooms 55.1% 4 bedrooms 10.7% 5+ bedrooms 1.1%
Vehicles per household
Vehicles % of households No vehicle 2.7% 1 vehicle 30.2% 2 vehicles 39.3% 3 or more 27.7%
Heating fuel
Fuel type % Utility gas 7.8% Electricity 75.6% Propane / LP gas 7.6% Wood 5.9% Solar 0.1% No fuel used 2.1%
Households & families
Household type Count % Married-couple family 1,160 55.8% Cohabiting couple 122 5.9% Male householder, no spouse 273 13.1% Female householder, no spouse 525 25.2% Households with children under 18 607 29.2% Households with seniors (65+) 729 35.0% Average household size 2.47
Marital status
Status Male Female Never married 21.4% 17.9% Married 64.0% 51.8% Separated 3.8% 1.4% Widowed 4.5% 17.6% Divorced 6.3% 11.3%
Education
Some HS, no diploma
14.1%
Some college, no degree
29.4%
Graduate / professional
2.9%
Metric % HS diploma or higher 77.5% Bachelor's or higher 8.6%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 55 5.5% Kindergarten 48 4.8% Elementary school 556 55.5% High school 156 15.6% College / grad school 186 18.6%
Employment
Industry of employment
Agriculture & mining
14.4%
Education & healthcare
12.0%
Arts, food & hospitality
9.7%
Professional & management
9.6%
Transportation & utilities
7.4%
Public administration
7.4%
Finance & real estate
5.5%
Occupation
Category % Management, business & arts 18.3% Service 18.7% Sales & office 16.4% Natural resources & construction 13.9% Production & transportation 32.8%
Employment type
Type % Private sector 77.2% Government 11.1% Self-employed 11.7% Unpaid family workers 0.0%
Commute
Method % Drive alone 90.3% Carpool 8.3% Public transit 0.0% Walk 0.3% Work from home 1.1% Other means 0.0% Avg commute (minutes) 31.0
Poverty
Married-couple families
10.9%
Female-led households
17.0%
Income support
Source % of households Social Security 32.6% Retirement income 24.3% Supplemental Security 5.5% Cash public assistance 4.9% Food stamps / SNAP 10.0%
Health indicators
Condition % Obesity 39.1% High blood pressure 40.9% High cholesterol 38.8% Diabetes 15.0% Heart disease 9.1% Stroke 4.4% Asthma 10.1% Arthritis 29.0% Kidney disease 3.9% Pulmonary disease 10.8% Cancer 7.1%
Behavior / access % Smoking 24.2% Binge drinking 16.8% No physical activity 30.8% Less than 7 hrs sleep 35.3% Depression 24.2% Fair or poor health 23.4% Poor mental health 16.9% Poor physical health 15.2% No health insurance 28.9% Visited doctor (checkup) 72.4% Visited dentist 47.5% Cholesterol screening 88.1% Teeth loss 20.7%
Veterans & disability
Veterans Count % Civilian veterans 441 10.9%
Disability % Any disability 25.7% Under 18 7.4% 18–64 years 20.2% 65 and over 63.8%
Health insurance coverage
Type % Private insurance 63.4% Public insurance 31.0% No insurance 21.8% Uninsured under 19 22.9%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 4,813 93.4% Spanish 324 6.7% Other Indo-European 324 6.7% Asian & Pacific Islander 0 0.0% Other languages 0 0.0%
Place of birth & citizenship
Origin Count % Native born (US) 4,780 92.8% Born in same state 4,728 91.8% Born in different state 4,006 77.8% Foreign born 52 1.0% Naturalized citizen 372 7.2% Not a US citizen 100 26.9%
Ancestry
Ancestry Count % Italian 680 13.2% French 462 9% Arab 140 2.7%
Ancestry Count % Polish 20 0.4% English 15 0.3% Dutch 11 0.2%
Technology access
Metric % of households Computer access 40.4% Internet access 90.9%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 75831
What city is ZIP code 75831 in?
ZIP code 75831 is primarily assigned to Buffalo, Texas.
What county is ZIP code 75831 in?
ZIP code 75831 falls within Leon County, Texas.
How educated is the population of ZIP code 75831?
9% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.
What is the poverty rate in ZIP code 75831?
17% of residents in ZIP code 75831 live below the poverty line, above the national average.
Does ZIP code 75831 have a large veteran population?
11% of civilians in ZIP code 75831 are veterans, above the national average of ~7%.
What is the typical home value in ZIP code 75831?
The median home value in ZIP code 75831 is $95,400.
What timezone is ZIP code 75831 in?
ZIP code 75831 observes the CST timezone.
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