Postal Codes

78009 ZIP Code

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ZIP code 78009 covers Castroville, Texas, with a population of about 9,494 and a median household income of $102,724.

Population
9,494135 per square mile
Median age
412.3 points above the US average
Median household income
$102,7241.3× the Texas median
Poverty rate
8.4%4 points below the US average
Typical home value
$461,391up 14.4% in five years
Median rent
$1,2129% below the Texas median
Degree or higher
29.9%5.1 points below the US average
Homeownership
85%20 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
202

Where 78009 is

Castroville, 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

Population9,494
Median age41
Family households83.4%
Born outside the US9.5%
Speaks a language other than English at home25.5%
White (non-Hispanic)36.6%
Black (non-Hispanic)3.7%
Asian (non-Hispanic)2.5%
Hispanic or Latino51.7%
Veterans13.7%
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$102,724
Income per person$38,810
Poverty rate8.4%
Households on SNAP or cash assistance5.3%

Household income distribution

Under $10k4.6%
$10–15k0.6%
$15–20k0.4%
$20–25k4.4%
$25–30k3.0%
$30–35k1.8%
$35–40k3.7%
$40–45k3.6%
$45–50k1.1%
$50–60k4.0%
$60–75k8.0%
$75–100k13.9%
$100–125k12.5%
$125–150k14.1%
$150–200k13.0%
$200k or more11.4%

Income as declared to the IRS

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

Tax returns filed4,620
Mean adjusted gross income$88,836
Returns declaring $200,000 or more8.9%
Returns, under $25k25.5%
Returns, $25k–$50k21.0%
Returns, $50k–$75k13.6%
Returns, $75k–$100k9.3%
Returns, $100k–$200k21.6%
Returns, $200k or more8.9%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$335,200
Median gross rent$1,212
Rent as a share of household income23.9%
Owner-occupied85%
Vacant homes10.7%
Median year built1997

What the homes are

Detached house68.4%
Attached house0.4%
2 to 4 units4.4%
5 to 19 units1.9%
20 or more units0.1%
Mobile home24.7%
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$461,391as of 2026-07
Typical home value, 1 yeardown 2.4%
Typical home value, 5 yearsup 14.4%
Typical home value, 10 yearsup 63.3%
Typical home value since 2000
200920172026$472,675$215,869

$225,870 in 2009 to $461,391 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate4.6%
Bachelor's degree or higher29.9%
High school diploma or higher89.1%
Works from home10.6%
Drives to work alone74.4%
Takes public transport0%
Commutes 45 minutes or more18.6%
Health

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

Obesity38.6% 5.2 pts above the national average of 33.4%
Diagnosed diabetes14% 2 pts above the national average of 12%
Currently smokes12.1% 1.1 pts below the national average of 13.2%
High blood pressure37.8% 3.7 pts above the national average of 34.1%
Fair or poor general health21.7% 1.4 pts above the national average of 20.3%
No health insurance (18–64)17.1% 5.8 pts above the national average of 11.3%
Depression21.7% same as the national average of 21.9%
No leisure-time physical activity28% 2.6 pts above the national average of 25.4%
Arthritis26% 0.9 pts above the national average of 25.1%
Binge drinking16.1% same as the national average of 16%
Taking blood pressure medication77.7% 3 pts above the national average of 74.7%
Cancer (non-skin)7.9% same as the national average of 7.7%
Current asthma9.7% 0.7 pts below the national average of 10.4%
Coronary heart disease6.6% same as the national average of 6.2%
Routine check-up in past year76.4% same as the national average of 76.7%
Cholesterol screening87.6% 1.7 pts above the national average of 85.9%
Cognitive disability14% 0.8 pts below the national average of 14.8%
Colorectal screening62.4% 1.9 pts below the national average of 64.3%
COPD6.2% same as the national average of 6.6%
Visited a dentist58.9% 2.4 pts below the national average of 61.3%
Any disability33.1% 2.4 pts above the national average of 30.7%
Hearing disability7.5% 0.8 pts above the national average of 6.7%
High cholesterol38.1% 1.9 pts above the national average of 36.2%
Independent living disability7.9% 0.5 pts below the national average of 8.4%
Mammography use74.3% 1.6 pts below the national average of 75.9%
Poor mental health (14+ days)15.9% 0.9 pts below the national average of 16.8%
Mobility disability15.8% 1.8 pts above the national average of 14%
Poor physical health (14+ days)14.1% 0.6 pts above the national average of 13.5%
Self-care disability4% same as the national average of 4%
Sleeps under 7 hours36.2% same as the national average of 36.4%
Stroke3.4% same as the national average of 3.4%
All natural teeth lost11.9% 1.1 pts below the national average of 13%
Vision disability5.6% same as the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments202
People employed1,983
Annual payroll$86,771,000
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 91.9% of US census tracts
FEMA ratingRelatively High
Expected annual loss86 out of 100
Community resilience17.6 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.

Lightning99.4Very High at its worst in this ZIP code
Strong wind98.6Very High at its worst in this ZIP code
River flooding97.2Very High at its worst in this ZIP code
Drought96.6Relatively Moderate at its worst in this ZIP code
Hail95.5Relatively High at its worst in this ZIP code
Winter weather93.5Relatively High at its worst in this ZIP code
Wildfire92.7Relatively Moderate at its worst in this ZIP code
Heat wave89Relatively High at its worst in this ZIP code
Tornado84.1Relatively High at its worst in this ZIP code
Cold wave66.2Relatively Moderate at its worst in this ZIP code
Landslide65.8Very Low at its worst in this ZIP code
Ice storm57.1Relatively Low at its worst in this ZIP code
Hurricane56.8Relatively Low at its worst in this ZIP code
Earthquake10.1Very 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$102,724$76,292$78,538
Income per person$38,810$39,446$43,289
Poverty rate8.4%13.8%12.4%
Median home value$335,200$260,400$303,400
Median gross rent$1,212$1,339$1,348
Homeownership85%62.6%65%
Bachelor's degree or higher29.9%33.1%35%
Unemployment rate4.6%5.1%5.2%
Works from home10.6%12.8%13.5%
Born outside the US9.5%17.2%13.9%
Median age4135.538.7
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 stationLYTLE 3W, TX US13.8 km away
Rain in a year30 in

Average high and low by month

January66.2°F / 41.9°F1.74 in rain
February69.8°F / 45.3°F1.85 in rain
March76.5°F / 52.2°F2.15 in rain
April83°F / 59.4°F2.32 in rain
May87°F / 66.6°F3.38 in rain
June94°F / 72.1°F2.99 in rain
July96°F / 73.4°F2.06 in rain
August96.2°F / 73°F2.1 in rain
September91.1°F / 69.1°F4.06 in rain
October84°F / 60.3°F3.42 in rain
November74°F / 51.4°F1.91 in rain
December66.8°F / 43.4°F1.64 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 supermarket55% 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%.

Medina Valley 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 vulnerability55more vulnerable than 55% of US census tracts
Socioeconomic status37more vulnerable than 37% of US census tracts
Household characteristics60more vulnerable than 60% of US census tracts
Racial and ethnic minority status73more vulnerable than 73% of US census tracts
Housing type and transport61more vulnerable than 61% of US census tracts
Walkability5.9 out of 20Below average
Nearby ZIP codes

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

78039 La Coste, TX8.6 km away
78066 Rio Medina, TX11.8 km away
78052 Lytle, TX15.7 km away
78059 Natalia, TX16.2 km away
78002 Atascosa, TX16.6 km away
78253 San Antonio, TX17.5 km away
78054 Macdona, TX18.8 km away
78245 San Antonio, TX20 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.

Medina County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area70.47 sq mi
Water area0.32 sq mi
Population density135 people per sq mi
Latitude, longitude29.3553, -98.8824

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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