Castroville, TX

Census ZIP code profile for Castroville, TX — 1 ZIPs, total population 7,255. Median income, home value, education, commute, and demographics from the U.S. Census Bureau American Community Survey 2023 5-Year Estimates.

2026 data Public-data reference. official source

Source:

Castroville, TX is covered by 1 USPS ZIP code serving a combined population of 7,255 according to Census ACS 5-Year Estimates. U.S. cities rarely map cleanly to a single ZIP — Castroville splits its residents across 1 delivery areas, each with its own demographic and housing profile. The table below lists every ZIP by population, so you can see which neighborhoods carry the weight of the city total and which are smaller pockets of the same municipal boundary.

Aggregated across every ZIP in Castroville, the median household income averages $103,125 and per-capita income averages $41,228. Poverty rate runs at 4.2% and unemployment at 3.1%. On housing, the average median home value is $368,700 with median rent of $1,250 per month, and 86.0% of occupied units are owner-occupied. These are arithmetic averages across the 1 ZIP — not population-weighted — so small ZIPs influence the headline numbers the same as large ones.

Use this city view to compare ZIPs inside Castroville against each other rather than hunting for a single "city average." The Affordability Dashboard linked below combines these Census inputs with HUD Fair Market Rents, FBI crime data, and Department of Labor childcare costs into a graded scorecard for Castroville as a whole, while individual ZIP pages show fine-grained household income, housing profile, education attainment, commute time, and nearby-ZIP benchmarks. Every field on this page is sourced directly from U.S. Census Bureau ACS 2023 5-Year Estimates — no estimates, no proprietary scoring, no editorial adjustment.

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Income, housing, safety, childcare — all in one view
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1

ZIP Codes

7,255

Population

$103,125

Median Income

$368,700

Median Home Value

43.1

Median Age

How much do residents of Castroville earn?

Median Household Income
$103,125
Per Capita Income
$41,228
Unemployment Rate
3.1%
Poverty Rate
4.2%

What does housing look like in Castroville?

Median Home Value
$368,700
Median Rent
$1,250/mo
Owner Occupied
86.0%
Housing Units
3,396

Who lives in Castroville?

Bachelor's Degree+
29.9%
High School+
50.0%
Avg Commute
30 min
Foreign Born
10.2%

ZIP Codes in Castroville, TX

ZIP Code Population Density Timezone
78009 7,255 39 America/Chicago

Frequently Asked Questions

How many ZIP codes are in Castroville, TX?
Castroville, TX has 1 ZIP code with a combined population of 7,255, based on Census ACS 2023 data.
What is the median household income in Castroville?
The average median household income across Castroville, TX ZIP codes is $103,125. The poverty rate is 4.2%.
What is the cost of living in Castroville?
The average median home value in Castroville, TX is $368,700. Median rent is $1,250/month. 86.0% of homes are owner-occupied.

Source: U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023). Verify with Census Bureau →

Source: HUD USPS Crosswalk (ZIP-to-county mapping) and Source: simplemaps.com (ZIP coordinates & timezones). Verify with HUD →

PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the U.S. Census Bureau American Community Survey (ACS). Consult a qualified professional before making decisions based on this data.