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Castroville city, TX

ZIP 78009 — People & Community

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Upper Middle ClassLow Snow Area

Demographics, education attainment, health access, and community lifestyle

Population & Demographics in 78009

78009 has a population of 9,494 with a median age of 41.0 yrs (53.0% male).

Race & Ethnicity
White
55.5%-10% vs US avg
x
Black
3.9%-68% vs US avg
x
Asian
2.5%-57% vs US avg
x
Hispanic
51.8%+177% vs US avg
x
Age Groups
0–17
21.7%-1% vs US avg
x
18–64
63.3%+3% vs US avg
x
65+
15.0%-8% vs US avg
x
Education
Less than HS
10.9%-2% vs US avg
x
High school
20.6%-22% vs US avg
x
Some college
38.7%+34% vs US avg
x
Bachelor's+
29.9%-11% vs US avg
x
Marital Status
Married
60.8%+26% vs US avg
x
Never married
27.0%-20% vs US avg
x
Divorced
6.6%-36% vs US avg
x
Widowed / Separated
5.6%
x
Diversity Index
42/100

Higher = more diverse (Simpson index from race/ethnicity)

Social & household profile

Poverty, nativity, veterans, disability, family structure, and births (ACS).

Poverty Rate
8.4%-27% vs US avg
x
Foreign Born
14.5%+4% vs US avg
x
Veterans
13.7%+128% vs US avg
x
Disability
14.6%+9% vs US avg
x
Single Parent
3.5%-57% vs US avg
x
Recent Births
66.4%+1045% vs US avg
x
Top ancestry
GermanEnglishAmerican

Health & Community Indicators in 78009

Poverty Rate
8.4%-27% vs US avg
x
Veterans
13.7%+128% vs US avg
x
Foreign Born
14.5%+4% vs US avg
x
Single Parent
3.5%-57% vs US avg
x
Disability
14.6%+9% vs US avg
x
Uninsured
11.6%+45% vs US avg
x
SNAP Benefits
3.4%-71% vs US avg
x
Private School
0.9%-91% vs US avg
x
Recent Births
66.4%+1045% vs US avg
x
Smartphone Only
0.0%
x

People & Community key statistics

Population statistics
Population
Population9,494
Median age41.0
Poverty rate8.4%
Demographics statistics
Demographics
White55.5%
Hispanic51.8%
Black3.9%
Asian2.5%
Foreign-born14.5%