Postal Codes

78830 ZIP Code

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ZIP code 78830 covers Big Wells, Texas, with a median household income of $32,841.

Median age
39.30.6 points above the US average
Median household income
$32,84157% below the Texas median
Poverty rate
43.9%31.5 points above the US average
Typical home value
$99,906
Median rent
$76043% below the Texas median
Degree or higher
9.2%25.8 points below the US average
Homeownership
76.6%11.6 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
9

Where 78830 is

Big Wells, 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

Median age39.3
Family households50.3%
Born outside the US5.5%
Speaks a language other than English at home67.5%
White (non-Hispanic)5.1%
Black (non-Hispanic)0%
Asian (non-Hispanic)0%
Hispanic or Latino94.9%
Veterans1.1%
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$32,841
Income per person$17,920
Poverty rate43.9%
Households on SNAP or cash assistance40%

Household income distribution

Under $10k7.4%
$10–15k24.0%
$15–20k0.0%
$20–25k0.0%
$25–30k17.7%
$30–35k6.3%
$35–40k1.1%
$40–45k6.9%
$45–50k5.7%
$50–60k7.4%
$60–75k9.7%
$75–100k6.9%
$100–125k3.4%
$125–150k2.3%
$150–200k1.1%
$200k or more0.0%

Income as declared to the IRS

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

Tax returns filed210
Mean adjusted gross income$56,376
Returns declaring $200,000 or more0%
Returns, under $25k42.9%
Returns, $25k–$50k23.8%
Returns, $50k–$75k19.0%
Returns, $75k–$100k0.0%
Returns, $100k–$200k14.3%
Returns, $200k or more0.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$80,000
Median gross rent$760
Rent as a share of household income21.7%
Owner-occupied76.6%
Vacant homes31.9%
Median year built1983

What the homes are

Detached house79.8%
Attached house1.6%
5 to 19 units1.9%
Mobile home16.3%
Boat, RV or van0.4%
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$99,906as of 2026-07
Typical home value, 1 yearup 37.6%
Typical home value since 2000
202220242026$99,906$72,590

$91,457 in 2022 to $99,906 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate14.8%
Bachelor's degree or higher9.2%
High school diploma or higher59.8%
Works from home4.3%
Drives to work alone82.6%
Takes public transport0%
Commutes 45 minutes or more22.7%
Health

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

Obesity46.6% 13.2 pts above the national average of 33.4%
Diagnosed diabetes26.3% 14.3 pts above the national average of 12%
Currently smokes19.9% 6.7 pts above the national average of 13.2%
High blood pressure45.5% 11.4 pts above the national average of 34.1%
Fair or poor general health47% 26.7 pts above the national average of 20.3%
No health insurance (18–64)45.4% 34.1 pts above the national average of 11.3%
Depression20.3% 1.6 pts below the national average of 21.9%
No leisure-time physical activity53% 27.6 pts above the national average of 25.4%
Arthritis29.4% 4.3 pts above the national average of 25.1%
Binge drinking12.2% 3.8 pts below the national average of 16%
Taking blood pressure medication79.1% 4.4 pts above the national average of 74.7%
Cancer (non-skin)5.8% 1.9 pts below the national average of 7.7%
Current asthma9.6% 0.8 pts below the national average of 10.4%
Coronary heart disease11.8% 5.6 pts above the national average of 6.2%
Routine check-up in past year73.8% 2.9 pts below the national average of 76.7%
Cholesterol screening80.5% 5.4 pts below the national average of 85.9%
Cognitive disability23.8% 9 pts above the national average of 14.8%
Colorectal screening48.5% 15.8 pts below the national average of 64.3%
COPD10.7% 4.1 pts above the national average of 6.6%
Visited a dentist35.3% 26 pts below the national average of 61.3%
Any disability52% 21.3 pts above the national average of 30.7%
Hearing disability12.9% 6.2 pts above the national average of 6.7%
High cholesterol43% 6.8 pts above the national average of 36.2%
Independent living disability16.5% 8.1 pts above the national average of 8.4%
Mammography use67.2% 8.7 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 disability31.8% 17.8 pts above the national average of 14%
Poor physical health (14+ days)23.7% 10.2 pts above the national average of 13.5%
Self-care disability11.2% 7.2 pts above the national average of 4%
Sleeps under 7 hours41.7% 5.3 pts above the national average of 36.4%
Stroke6.4% 3 pts above the national average of 3.4%
All natural teeth lost32.6% 19.6 pts above the national average of 13%
Vision disability18.2% 12.6 pts above the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments9
People employed98
Annual payroll$5,248,000
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 81% of US census tracts
FEMA ratingRelatively Moderate
Expected annual loss56.5 out of 100
Community resilience1.9 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.

Heat wave99Very High at its worst in this ZIP code
Drought98.6Relatively High at its worst in this ZIP code
Wildfire87.8Relatively Low at its worst in this ZIP code
Lightning85.1Relatively High at its worst in this ZIP code
Cold wave80.4Relatively High at its worst in this ZIP code
Hurricane76.7Relatively Low at its worst in this ZIP code
Hail73.7Relatively Moderate at its worst in this ZIP code
River flooding62.4Relatively Moderate at its worst in this ZIP code
Ice storm61.6Relatively Low at its worst in this ZIP code
Tornado57.8Relatively Moderate at its worst in this ZIP code
Landslide55.1Very Low at its worst in this ZIP code
Winter weather45.2Relatively Low at its worst in this ZIP code
Strong wind43Relatively Low at its worst in this ZIP code
Earthquake11.7Very 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$32,841$76,292$78,538
Income per person$17,920$39,446$43,289
Poverty rate43.9%13.8%12.4%
Median home value$80,000$260,400$303,400
Median gross rent$760$1,339$1,348
Homeownership76.6%62.6%65%
Bachelor's degree or higher9.2%33.1%35%
Unemployment rate14.8%5.1%5.2%
Works from home4.3%12.8%13.5%
Born outside the US5.5%17.2%13.9%
Median age39.335.538.7
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 stationCRYSTAL CITY, TX US27.6 km away
Rain in a year19 in

Average high and low by month

January66.8°F / 43.9°F1.04 in rain
February72.2°F / 48.5°F0.85 in rain
March78.9°F / 55.1°F1.7 in rain
April86.1°F / 61.8°F1.31 in rain
May91.1°F / 69.6°F2.23 in rain
June96.4°F / 74.6°F2.07 in rain
July97.3°F / 75.5°F2.07 in rain
August99.1°F / 75.8°F1.92 in rain
September92.9°F / 71.5°F2.43 in rain
October85°F / 63.6°F2 in rain
November74.1°F / 53.2°F1 in rain
December67.7°F / 45.1°F0.84 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 supermarket100% of this ZIP code's area
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarket100% of this ZIP code's area
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%.

Carrizo Springs Consolidated Independent School District100% 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 vulnerability98more vulnerable than 98% of US census tracts
Socioeconomic status96more vulnerable than 96% of US census tracts
Household characteristics97more vulnerable than 97% of US census tracts
Racial and ethnic minority status95more vulnerable than 95% of US census tracts
Housing type and transport86more vulnerable than 86% of US census tracts
Walkability6.1 out of 20Below average
Nearby ZIP codes

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

78827 Asherton, TX22.3 km away
78836 Catarina, TX23.3 km away
78839 Crystal City, TX27.5 km away
78834 Carrizo Springs, TX28.3 km away
78014 Cotulla, TX36.7 km away
78829 Batesville, TX40.1 km away
78017 Dilley, TX41.2 km away
78001 Artesia Wells, TX44.7 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.

Dimmit County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area159.66 sq mi
Water area0.31 sq mi
Latitude, longitude28.5693, -99.5781

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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