Postal Codes

78631 ZIP Code

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ZIP code 78631 covers Harper, Texas, with a population of about 3,357 and a median household income of $73,646.

Population
3,35711 per square mile
Median age
42.13.4 points above the US average
Median household income
$73,646about the Texas median
Poverty rate
12.6%about the US average
Typical home value
$416,202up 6.7% in five years
Degree or higher
19.9%15.1 points below the US average
Homeownership
82.3%17.3 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
47

Where 78631 is

Harper, 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

Population3,357
Median age42.1
Family households82.1%
Born outside the US4.6%
Speaks a language other than English at home8.5%
White (non-Hispanic)72.6%
Black (non-Hispanic)0%
Asian (non-Hispanic)0%
Hispanic or Latino21.5%
Veterans4.6%
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$73,646
Income per person$32,763
Poverty rate12.6%
Households on SNAP or cash assistance7.4%

Household income distribution

Under $10k3.0%
$10–15k4.3%
$15–20k8.4%
$20–25k3.9%
$25–30k0.0%
$30–35k7.9%
$35–40k0.0%
$40–45k3.3%
$45–50k2.5%
$50–60k11.9%
$60–75k5.4%
$75–100k17.1%
$100–125k9.2%
$125–150k3.6%
$150–200k13.5%
$200k or more6.0%

Income as declared to the IRS

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

Tax returns filed1,490
Mean adjusted gross income$78,068
Returns declaring $200,000 or more5.4%
Returns, under $25k30.2%
Returns, $25k–$50k24.2%
Returns, $50k–$75k12.8%
Returns, $75k–$100k10.1%
Returns, $100k–$200k17.4%
Returns, $200k or more5.4%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$339,100
Rent as a share of household income42.5%
Owner-occupied82.3%
Vacant homes21%
Median year built2002

What the homes are

Detached house62.4%
Mobile home37.6%
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$416,202as of 2026-07
Typical home value, 1 yeardown 4.6%
Typical home value, 5 yearsup 6.7%
Typical home value, 10 yearsup 69.7%
Typical home value since 2000
200920172026$448,368$182,692

$187,720 in 2009 to $416,202 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate2.2%
Bachelor's degree or higher19.9%
High school diploma or higher88.2%
Works from home8.9%
Drives to work alone84.8%
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.

Obesity34.8% 1.4 pts above the national average of 33.4%
Diagnosed diabetes14.5% 2.5 pts above the national average of 12%
Currently smokes13.3% same as the national average of 13.2%
High blood pressure41.9% 7.8 pts above the national average of 34.1%
Fair or poor general health21.1% 0.8 pts above the national average of 20.3%
No health insurance (18–64)11.6% same as the national average of 11.3%
Depression22.5% 0.6 pts above the national average of 21.9%
No leisure-time physical activity26.3% 0.9 pts above the national average of 25.4%
Arthritis32.7% 7.6 pts above the national average of 25.1%
Binge drinking15% 1 pts below the national average of 16%
Taking blood pressure medication82% 7.3 pts above the national average of 74.7%
Cancer (non-skin)11.4% 3.7 pts above the national average of 7.7%
Current asthma10% same as the national average of 10.4%
Coronary heart disease8.6% 2.4 pts above the national average of 6.2%
Routine check-up in past year78.9% 2.2 pts above the national average of 76.7%
Cholesterol screening89.5% 3.6 pts above the national average of 85.9%
Cognitive disability13.3% 1.5 pts below the national average of 14.8%
Colorectal screening67% 2.7 pts above the national average of 64.3%
COPD8.7% 2.1 pts above the national average of 6.6%
Visited a dentist61.8% 0.5 pts above the national average of 61.3%
Any disability33.6% 2.9 pts above the national average of 30.7%
Hearing disability9.4% 2.7 pts above the national average of 6.7%
High cholesterol42.9% 6.7 pts above the national average of 36.2%
Independent living disability8.3% same as the national average of 8.4%
Mammography use74% 1.9 pts below the national average of 75.9%
Poor mental health (14+ days)15.4% 1.4 pts below the national average of 16.8%
Mobility disability17.4% 3.4 pts above the national average of 14%
Poor physical health (14+ days)14.9% 1.4 pts above the national average of 13.5%
Self-care disability4.2% same as the national average of 4%
Sleeps under 7 hours33.8% 2.6 pts below the national average of 36.4%
Stroke4.3% 0.9 pts above the national average of 3.4%
All natural teeth lost13% same as the national average of 13%
Vision disability5.3% same as the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments47
People employed163
Annual payroll$6,406,000
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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 89.2% of US census tracts
FEMA ratingRelatively Moderate to Relatively High across the 3 census tracts this ZIP code covers
Expected annual loss86.3 out of 100
Community resilience31 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.

Lightning97.7Very High at its worst in this ZIP code
Drought96.7Relatively High at its worst in this ZIP code
Wildfire96Relatively High at its worst in this ZIP code
River flooding95.4Very High at its worst in this ZIP code
Hail93.3Relatively High at its worst in this ZIP code
Winter weather93.3Relatively High at its worst in this ZIP code
Landslide86.9Relatively Low at its worst in this ZIP code
Strong wind78.6Relatively High at its worst in this ZIP code
Tornado78.4Relatively High at its worst in this ZIP code
Cold wave65.3Relatively Moderate at its worst in this ZIP code
Hurricane61.6Relatively Low at its worst in this ZIP code
Heat wave51.4Relatively Moderate at its worst in this ZIP code
Earthquake11.5Very Low at its worst in this ZIP code
Ice storm5.8Very 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$73,646$76,292$78,538
Income per person$32,763$39,446$43,289
Poverty rate12.6%13.8%12.4%
Median home value$339,100$260,400$303,400
Median gross rent$1,339$1,348
Homeownership82.3%62.6%65%
Bachelor's degree or higher19.9%33.1%35%
Unemployment rate2.2%5.1%5.2%
Works from home8.9%12.8%13.5%
Born outside the US4.6%17.2%13.9%
Median age42.135.538.7
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 stationHARPER 3ENE, TX US4.7 km away
Rain in a year28 in

Average high and low by month

January60.1°F / 34.4°F1.46 in rain
February63.5°F / 38.3°F1.66 in rain
March69.8°F / 44.8°F2.58 in rain
April77.1°F / 52.3°F2.1 in rain
May83.1°F / 61°F4.15 in rain
June89.1°F / 66.9°F2.8 in rain
July92°F / 68.9°F1.74 in rain
August93.2°F / 68.2°F2.14 in rain
September86.7°F / 62.3°F3.18 in rain
October78.7°F / 53.7°F2.72 in rain
November67.8°F / 44.1°F2.14 in rain
December61.1°F / 36.6°F1.61 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 supermarketNone of this ZIP code
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 4 school districts, so the address decides which one, not the ZIP code.

Harper Independent School District90.2% of this ZIP code's land area
Junction Independent School District4.3% of this ZIP code's land area
Fredericksburg Independent School District3.6% of this ZIP code's land area
Doss Consolidated Common School District1.9% 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 vulnerability39more vulnerable than 39% of US census tracts
Socioeconomic status42more vulnerable than 42% of US census tracts
Household characteristics48more vulnerable than 48% of US census tracts
Racial and ethnic minority status24more vulnerable than 24% of US census tracts
Housing type and transport41more vulnerable than 41% of US census tracts
Walkability4.7 out of 20Least walkable
Nearby ZIP codes

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

78618 Doss, TX21.1 km away
78025 Ingram, TX23.3 km away
78058 Mountain Home, TX26.4 km away
78028 Kerrville, TX28.4 km away
78029 Kerrville, TX29.2 km away
78624 Fredericksburg, TX34.7 km away
78024 Hunt, TX38.7 km away
78010 Center Point, TX42.4 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.

Kimble County48.8% of this ZIP code's land area
Gillespie County44.3% of this ZIP code's land area
Kerr County6.9% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area299.77 sq mi
Water area0.17 sq mi
Population density11 people per sq mi
Latitude, longitude30.2816, -99.2410

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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