ZIP Code 75831 in Buffalo, TX

Data Last Updated: October 1, 2025
City:Buffalo, Texas
City Alias:Keechi
Names to Avoid:
Flo, Lanely
Counties:Leon County[Primary]
Freestone County
Timezone:Central (GMT -06:00)
Local Time:7:16:27 PM
Population:4,865 [See All]
Area Codes:430 / 903
Classification:Standard [Normal Street Delivery]
Coordinates:31.4201, -96.0039
Land Area:250.957 sq mi
Quick Link:
https://www.zip-codes.com/zip-code/75831/zip-code-75831.asp

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Population & Demographics


ZIP Code 75831 has 4,865 residents and 1,929 households (average 2.52 persons per household). The median age is 43.0 years, significantly older than the state (35.6) and older than the nation (38.8). The gender split is 49.3% male and 50.7% female, which is about the same as the national male share (49.1%), making this a female-majority area. Largest groups are White (71.2%, much higher than the state average of 50.1% and well above the national average of 61.6%) and Hispanic or Latino (24.9%); Hispanic or Latino residents make up 24.9%, which is much lower than the state average (39.3%).

Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship

Source: U.S. Census 2020 Demographics & Housing Characteristics (DHC) and U.S. Census 2011-2023 American Community Survey (ACS) 5-Year Estimates.
2020 Population:4,865Source: Census DHC
2023 ACS Population Estimate:4,769Source: Census ACS
2025 ZC Population Estimate:4,714Source: ZIP-Codes.com
Population Density:19.4 people per sq mile
Average Income:$52,188Source: Census ACS
Households:1,929Source: Census DHC
Average House Value:$99,200Source: Census ACS
Persons Per Household:2.52Source: Census DHC
Average Family Size:2.93Source: Census ACS

Population Over Time (with 2010 & 2020 Census Benchmarks)


Group20102011210220132014201520162017201820192020202120222023
Census ACS Population Estimate--6,0145,8505,9206,1195,7725,5545,7465,4945,5296,1554,9815,1524,769
Decennial Census5,386------------------4,865------
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP05. DEMOGRAPHIC AND HOUSING ESTIMATES

Population by Age & Gender (Total, Male, Female)


Median Age: 43

Male Median Age: 42

Female Median Age: 43.8

Group< 55-910-1415-1920-2425-2930-3435-3940-4445-4950-5455-5960-6465-6970-7475-7980-8485+
Male15119019216611194971411401371531401701761251305628
Female140140165144125112119158148134127177206170189887551
Total29133035731023620621629928827128031737634631421813179
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Population by Race


White:3,46462.22%
Black:2885.17%
Hispanic:*1,21221.77%
Asian:310.56%
American Indian:360.65%
Hawaiian:30.05%
Other:5339.57%
Total:5,567100%
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)
* NOTE: Hispanic or Latino is an ethnicity, not a race. This means individuals who identify as Hispanic will also be included in one of the race categories (such as White or Black). As a result, the totals shown here may exceed 100% when Hispanic is displayed alongside racial groups.

Gender Breakdown


GenderCount%Median Age
Males:2,39749.27%42.0 years
Females:2,46850.73%43.8 years
Total:4,865100%43.0 years
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Nativity & Citizenship


Native, born in the United States:4,33490.88%
Native, born in PR, Island Areas, or abroad:450.94%
Foreign born, naturalized U.S. citizen:1773.71%
Foreign born, not a U.S. citizen:2138.18%
Total Population:4,769100%
Total Native Population:4,37991.82%
Total Foreign-born Population:3908.18%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS
Note: Nativity and Citizenship derived from American Community Survey (ACS) 5-year estimates. Total Population listed here will not match official ZIP Code population totals, which are based on the Decennial Census.

Income & Employment


In 2023, the Median household income is $52,188, which is far less than the national median ($78,538), is up $9,152 (21.3%) since 2011 and above its 2019 pre-pandemic level by $8,896. Family households earn a median of $72,958 versus $23,932 for nonfamily households (a difference of $49,026). By gender, male median income is $56,563 and female is $30,341, which is well under the national female median ($53,445), with a current gap of $26,222 that has widened from 2011 to 2023. The labor-force participation rate is 46.2%, which is much lower than the state rate (65.3%). The unemployment rate is 3.7%, which is better than the national rate (5.2%). The largest occupation group is Production (25.7%).

Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation

Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. Using data from Tables DP02, DP03, DP04 and DP05.

Median Income Over Time (Household, Family, Nonfamily, Male, Female)


Income Type2011201220132014201520162017201820192020202120222023
Median Household Income$43,036$42,472$50,575$54,608$54,631$48,523$50,150$43,011$43,292$42,395$48,385$47,358$52,188
Median Family Income$50,833$48,793$52,472$57,281$59,375$52,917$55,645$54,182$54,750$55,571$67,113$64,500$72,958
Median NonFamily Income$27,300$26,750$35,100$35,915$35,451$36,929$37,292$29,716$29,167$23,472$20,570$21,500$23,932
Median Male Income$45,000$44,420$44,340$48,263$50,203$40,844$36,205$36,857$38,049$40,542$51,477$58,639$56,563
Median Female Income$26,134$26,724$28,250$26,696$30,306$32,045$35,942$34,601$35,281$34,775$43,802$33,300$30,341
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Average Household Income


Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment Status


Employed:1,65843.84%
Unemployed:641.69%
Not In Labor Force:2,06054.47%
Total:3,782100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment by Occupation (Civilian Employed Population, 16 and Over)


Management, business, science, and arts:33720.33%
Service:37422.56%
Sales and Office:25815.56%
Natural resources, construction, and maintenance:26315.86%
Production, transportation, and material moving:42625.69%
Total Civilian Employed Population:1,658100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS.

Housing & Affordability


In 2023, the median home value is $99,200, which is well under the national median ($303,400), is up $22,300 (29.00%) since 2011 and above its 2019 pre-pandemic level by $3,200. The median gross rent is $861, which is considerably lower than the national median ($1,348), is up $220 (34.32%) since 2011 and above its 2019 pre-pandemic level by $103. Of occupied housing, owners make up 67.95% (29.74% with a mortgage, 70.26% free-and-clear) and renters 32.05% - making this ZIP Code more home ownership than the state and under national rental averages. The vacancy rate is 25.91%, which is considerably higher than the state rate (9.62%).

Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing Occupancy

Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. Using data from Table DP03, SELECTED ECONOMIC CHARACTERISTICS.

Median Home Value (Comparison)


Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Home Value Over Time


Group2011210220132014201520162017201820192020202120222023
Median Home Value$76,900$80,900$86,600$84,300$85,800$86,700$85,500$86,600$96,000$88,700$84,300$95,400$99,200
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Gross Rent Paid


Less than $500:7712.32%
$500 to $999:24138.56%
$1,000 to $1,499:11217.92%
$1,500 to $1,999:416.56%
$2,000 to $2,499:00.00%
$2,500 to $2,999:00.00%
$3,000 or more:00.00%
No Rent:15424.64%
Total:625100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Gross Rent Over Time


Group2011210220132014201520162017201820192020202120222023
Median Rent$641$595$541$642$653$634$558$700$758$784$800$922$861
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Housing Occupancy


Owner Occupied (with mortgage):39420.21%
Owner Occupied (free and clear, no mortgage):93147.74%
Renter Occupied:62532.05%
Total Occupied Housing Units:1,950100%

Occupied Housing Units:1,95074.09%
Vacant Housing Units (not graphed):68225.91%
Total Housing Units:2,632100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Housing Type (Single-Family, Multi-Family, Other)


Single-Family Units:1,52157.79%
Multi-Family Units:1325.02%
Other Units:97937.20%
Total Housing Units:2,632100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Education, Health & Community


In 2023, 10.20% of adults (25+) have a bachelor's degree or higher, which is far lower than the national rate (35.00%). High school or higher is 83.70%, which is far lower than the national rate (89.40%). The uninsured rate is 20.00%, which is far higher than the national rate (8.60%). The share of people in poverty is 8.60%, which is on par with the state rate (10.50%), down 6.40 percentage points since 2011 and below its 2019 pre-pandemic level by 2.10 percentage points. This points to a pronounced improvement in local conditions - rising incomes, firmer consumer demand, and a stronger tax base. Among residents ages 3+, the largest enrollment group is elementary (45.30%). College enrollment is 14.76%, which is far lower than the national rate (26.70%), indicating the community may be more oriented toward vocational/trade or direct-to-workforce opportunities.

Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment

Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. Using data from Tables DP02 and DP03.

Educational Attainment of Adults (25 and Older)


Less than 9th grade:2276.86%
9th to 12th grade, no diploma:3119.40%
High school graduate (includes equivalency):1,28338.77%
Some college, no degree:89126.93%
Associate's degree:2587.80%
Bachelor's degree:2367.13%
Graduate or professional degree:1033.11%
Total:3,309100%
High school or higher:2,77183.74%
Bachelor's degree or higher:33910.24%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Health Insurance Coverage by Type (Private, Public, Uninsured)


Private Insurance:2,97453.64%
Public Insurance:1,61929.20%
No Insurance:95117.15%
Total:5,544100%
Has Health Insurance:4,59382.85%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Percentage of People in Poverty Over Time (2011-2023)


Group2011210220132014201520162017201820192020202120222023
% of People in Poverty15.0%16.3%15.7%9.6%11.0%9.5%11.4%10.5%10.7%14.9%11.0%11.7%8.6%
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.

School Enrollment by Education Level (Ages 3 and Older)


Nursery School, Preschool:757.58%
Kindergarten:272.73%
Elementary school (grades 1-8):44845.30%
High school (grades 9-12):29329.63%
College or graduate school:14614.76%
Total:989100%
Early Childhood:10210.31%
K-12 (Primary & Secondary School):76877.65%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Business & Employment Statistics


ZIP Code 75831 supports both business and residential activity. According to the Business Census (2023), there are 116 business establishments, employing about 2,369 people with an annual payroll of $143,958,000. USPS data shows 1,871 residential mailboxes and 91 business mailboxes, reflecting local delivery coverage.

# Residential Mailboxes:1,871Source: USPS
# Business Mailboxes:91Source: USPS
Total Delivery Receptacles:3,255Source: USPS
Single Family Delivery Units:1,799Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:116Source: CBP
1st Quarter Payroll:$32,035,000Source: CBP
Annual Payroll:$143,958,000Source: CBP
# of Employees:2,369Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 75831 is located in Leon County, Texas, within the Metropolitan Statistical Area (CBSA ) and Texas's 17th Congressional District. This area has a population of 0 people, about 0.00% of whom live in ZIP Code 75831. It covers 250.957 sq mi of land and a water area of 1.377 sq mi.

CBSA Name:--Source: Census
CBSA Number:--Source: Census
CBSA Type:--Source: Census
CBSA Division:--Source: Census
CBSA Population:0Source: Census
MSA:Source: Census
Land Area:250.957 sq miSource: Census
Water Area:1.377 sq miSource: Census
Congressional District:17Source: USPS
Congressional Land Area:7651.16 sq miSource: Census
PMSA:Source: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:4811116Source: Census
Place Name:Buffalo city; TexasSource: Census

Adjacent & Nearby ZIP Codes


75832 | | 75803

Schools in ZIP Code 75831


ZIP Code 75831 is in the Buffalo Independent School District, which serves grades Pre-Kindergarten thru 12th. There are 3 public school(s) in this ZIP Code, and we have located 3 private school(s). It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.

Buffalo El 1700 E Commerce
Buffalo, TX 75831
District: Buffalo Independent School District
Buffalo H S 1724 N Buffalo Ave
Buffalo, TX 75831
District: Buffalo Independent School District
Buffalo J H 335 Bison Trl
Buffalo, TX 75831
District: Buffalo Independent School District
Christian Heritage Academy 1500 Crockett Rd
Palestine, TX 75801
District: Private SchoolNearby
Still Creek Christian Academy 6055 Hearne Rd
Bryan, TX 77808
District: Private SchoolNearby
Athens Christian Preparatory Academy 2621 US Highway 175 E
Athens, TX 75751
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 75831


Navarro College 3200 W 7th Avenue
Corsicana, TX 75110
Type: Post Secondary
Trinity Valley Community College 100 Cardinal Drive
Athens, TX 75751
Type: Post Secondary
Sam Houston State University 1806 Ave J
Huntsville, TX 77340
Type: Post Secondary
Manuel And Theresa's School Of Hair Design-Bryan 715 S Texas Ave
Bryan, TX 77803
Type: Post Secondary
Sebring Career Schools-Huntsville 2505 Lake Road , Suite 1
Huntsville, TX 77340
Type: Post Secondary
Charles And Sues School Of Hair Design 1711 Briarcrest Dr
Bryan, TX 77802
Type: Post Secondary

Sources & References


Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on October 1, 2025.

  1. U.S. Postal Service [Last Updated: 10/1/2025], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 10/1/2025], https://www.zip-codes.com
  3. U.S. Census [Updated: Varies], https://www.census.gov
    • U.S. Census Office of Management and Budget [Updated: As Released]
    • U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
    • U.S. Census 2011-2023 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
    • U.S. Census Business Patterns (CBD) [Annually] [Updated: Annually, As Released]
    • U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
  4. U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
  5. Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
  6. National Center for Education Statistics [Updated: 10/1/2025], https://nces.ed.gov