Postal Codes

75831 ZIP Code

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ZIP code 75831 covers Buffalo, Texas, with a population of about 4,769 and a median household income of $52,188.

Population
4,76919 per square mile
Median age
41.83.1 points above the US average
Median household income
$52,18832% below the Texas median
Poverty rate
14.9%2.5 points above the US average
Typical home value
$289,515up 7.2% in five years
Median rent
$86136% below the Texas median
Degree or higher
10.2%24.8 points below the US average
Homeownership
67.9%2.9 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
114

Where 75831 is

Buffalo, Texas — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population4,769
Median age41.8
Family households61.4%
Born outside the US8.2%
Speaks a language other than English at home11.8%
White (non-Hispanic)65.3%
Black (non-Hispanic)15.3%
Asian (non-Hispanic)0%
Hispanic or Latino17.1%
Veterans11%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$52,188
Income per person$29,492
Poverty rate14.9%
Households on SNAP or cash assistance15.2%

Household income distribution

Under $10k10.5%
$10–15k3.8%
$15–20k5.6%
$20–25k6.6%
$25–30k2.6%
$30–35k5.2%
$35–40k1.0%
$40–45k5.5%
$45–50k8.1%
$50–60k9.2%
$60–75k7.3%
$75–100k13.0%
$100–125k7.9%
$125–150k5.5%
$150–200k6.0%
$200k or more2.1%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed2,160
Mean adjusted gross income$67,322
Returns declaring $200,000 or more4.2%
Returns, under $25k32.4%
Returns, $25k–$50k23.1%
Returns, $50k–$75k15.3%
Returns, $75k–$100k9.3%
Returns, $100k–$200k15.7%
Returns, $200k or more4.2%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$99,200
Median gross rent$861
Rent as a share of household income18.1%
Owner-occupied67.9%
Vacant homes25.9%
Median year built1991

What the homes are

Detached house56.8%
Attached house1%
2 to 4 units2.5%
5 to 19 units1.1%
20 or more units1.4%
Mobile home36.9%
Boat, RV or van0.3%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$289,515as of 2026-07
Typical home value, 1 yeardown 0.6%
Typical home value, 5 yearsup 7.2%
Typical home value, 10 yearsup 47.8%
Typical home value since 2000
201020182026$328,985$133,064

$135,601 in 2010 to $289,515 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate3.7%
Bachelor's degree or higher10.2%
High school diploma or higher83.7%
Works from home5.5%
Drives to work alone83%
Takes public transport0%
Commutes 45 minutes or more20.8%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity38.9% 5.5 pts above the national average of 33.4%
Diagnosed diabetes16.8% 4.8 pts above the national average of 12%
Currently smokes18.3% 5.1 pts above the national average of 13.2%
High blood pressure42.8% 8.7 pts above the national average of 34.1%
Fair or poor general health28.3% 8 pts above the national average of 20.3%
No health insurance (18–64)19.2% 7.9 pts above the national average of 11.3%
Depression24% 2.1 pts above the national average of 21.9%
No leisure-time physical activity34.3% 8.9 pts above the national average of 25.4%
Arthritis31.9% 6.8 pts above the national average of 25.1%
Binge drinking14.6% 1.4 pts below the national average of 16%
Taking blood pressure medication80.1% 5.4 pts above the national average of 74.7%
Cancer (non-skin)9.2% 1.5 pts above the national average of 7.7%
Current asthma10.8% same as the national average of 10.4%
Coronary heart disease9.2% 3 pts above the national average of 6.2%
Routine check-up in past year76.5% same as the national average of 76.7%
Cholesterol screening85.4% 0.5 pts below the national average of 85.9%
Cognitive disability17.8% 3 pts above the national average of 14.8%
Colorectal screening61.1% 3.2 pts below the national average of 64.3%
COPD10.7% 4.1 pts above the national average of 6.6%
Visited a dentist49.3% 12 pts below the national average of 61.3%
Any disability39.6% 8.9 pts above the national average of 30.7%
Hearing disability9.7% 3 pts above the national average of 6.7%
High cholesterol41.1% 4.9 pts above the national average of 36.2%
Independent living disability11.4% 3 pts above the national average of 8.4%
Mammography use69.5% 6.4 pts below the national average of 75.9%
Poor mental health (14+ days)18.6% 1.8 pts above the national average of 16.8%
Mobility disability21.2% 7.2 pts above the national average of 14%
Poor physical health (14+ days)17.6% 4.1 pts above the national average of 13.5%
Self-care disability5.9% 1.9 pts above the national average of 4%
Sleeps under 7 hours38.2% 1.8 pts above the national average of 36.4%
Stroke5% 1.6 pts above the national average of 3.4%
All natural teeth lost17.8% 4.8 pts above the national average of 13%
Vision disability7.8% 2.2 pts above the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments114
People employed1,963
Annual payroll$109,455,000
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Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 79.6% of US census tracts
FEMA ratingRelatively Moderate to Relatively High across the 5 census tracts this ZIP code covers
Expected annual loss74 out of 100
Community resilience20.6 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Cold wave98.5Very High at its worst in this ZIP code
Lightning92.3Very High at its worst in this ZIP code
Strong wind85Relatively High at its worst in this ZIP code
Wildfire85Relatively Moderate at its worst in this ZIP code
Tornado84.8Very High at its worst in this ZIP code
Hurricane79.8Relatively Moderate at its worst in this ZIP code
Landslide79.8Relatively Low at its worst in this ZIP code
Drought79.3Relatively High at its worst in this ZIP code
Ice storm72.5Relatively High at its worst in this ZIP code
Hail67.8Relatively Moderate at its worst in this ZIP code
Winter weather62.2Relatively High at its worst in this ZIP code
Heat wave62.1Relatively Moderate at its worst in this ZIP code
River flooding61.1Relatively High at its worst in this ZIP code
Earthquake20.7Very Low at its worst in this ZIP code
Compared with Texas and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPTexasUnited States
Median household income$52,188$76,292$78,538
Income per person$29,492$39,446$43,289
Poverty rate14.9%13.8%12.4%
Median home value$99,200$260,400$303,400
Median gross rent$861$1,339$1,348
Homeownership67.9%62.6%65%
Bachelor's degree or higher10.2%33.1%35%
Unemployment rate3.7%5.1%5.2%
Works from home5.5%12.8%13.5%
Born outside the US8.2%17.2%13.9%
Median age41.835.538.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationCENTERVILLE, TX US17.2 km away
Rain in a year42 in
Snow in a year0 in

Average high and low by month

January59.5°F / 35.1°F3.47 in rain
February63.4°F / 38.9°F3.22 in rain, 0.1 in snow
March70.3°F / 45.2°F3.9 in rain
April77.5°F / 52.4°F3.11 in rain
May84.1°F / 61.7°F4.65 in rain
June90.5°F / 69.1°F4 in rain
July94°F / 71.7°F2.47 in rain
August94.9°F / 71°F2.71 in rain
September89.1°F / 64.8°F3.22 in rain
October80.1°F / 53.5°F4.22 in rain
November69.2°F / 44°F3.63 in rain
December60.7°F / 36.9°F3.81 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarket81% of this ZIP code's area
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 6 school districts, so the address decides which one, not the ZIP code.

Buffalo Independent School District74.1% of this ZIP code's land area
Dew Independent School District15.2% of this ZIP code's land area
Centerville Independent School District3.9% of this ZIP code's land area
Leon Independent School District3.6% of this ZIP code's land area
Teague Independent School District1.8% of this ZIP code's land area
Fairfield Independent School District1.4% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability61more vulnerable than 61% of US census tracts
Socioeconomic status53more vulnerable than 53% of US census tracts
Household characteristics62more vulnerable than 62% of US census tracts
Racial and ethnic minority status47more vulnerable than 47% of US census tracts
Housing type and transport67more vulnerable than 67% of US census tracts
Walkability5 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

77850 Concord, TX10.9 km away
75833 Centerville, TX16.9 km away
75846 Jewett, TX19.6 km away
75855 Oakwood, TX23.4 km away
75838 Donie, TX25 km away
75850 Leona, TX30.6 km away
77855 Flynn, TX30.8 km away
77865 Marquez, TX30.9 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Leon County70.2% of this ZIP code's land area
Freestone County29.8% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area250.96 sq mi
Water area1.38 sq mi
Population density19 people per sq mi
Latitude, longitude31.4121, -95.9904

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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