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ZIP 78655 · Martindale

Who lives in ZIP code 78655 (Martindale, TX): age, income, housing, education and work.

Source: uszips 2026 (ACS-based ZIP file)

2026 ZIP profile

Martindale, TX · Caldwell County

uszips 2026
People3,730
Median age44.6
Household income$55,952
Home value$204,996
Median rent$1,093/mo
Poverty16.5%
College degree+20.2%
Commute33 min

Place

Metro area
Austin-Round Rock-San Marcos, TX
Time zone
Central
Density
50 / sq mi
Housing units
1,388

Spans 2 counties

Caldwell60%
Guadalupe40%

Share of the ZIP's people in each county.

Age mix

Under 1014.5%
10–1911.1%
20s8.9%
30s12.9%
40s21.6%
50s16.4%
60s7.1%
70s4.9%
80+2.6%

10.4% are 65 or older; 76.6% are adults.

Household income

Under $25K6.0%
$25K–50K42.5%
$50K–75K13.0%
$75K–100K14.7%
$100K–150K10.4%
$150K+13.5%

23.9% of households earn $100K+. Median per person: $33,115.

Education (adults 25+)

Less than high school22.2%
High school28.4%
Some college29.2%
Bachelor's15.3%
Graduate4.9%

34.1% of degrees are in STEM fields.

Race

White40.3%
Black0.8%
Asian0.5%
Native American0.7%
Pacific Islander0.0%
Other11.2%
Two or more46.5%

63.7% Hispanic or Latino (of any race).

Households & family

Married
52.4%
Never married
33.6%
Divorced
8.8%
Widowed
5.2%
Family size
3.26
Dual-income families
65.5%

Housing

Own their home
65.3%
Rent burden
33.7%
Men / women
51% / 49%

Work

In labor force
71.1%
Unemployment
13.0%
Self-employed
14.7%
Farmers
2.3%

Community

Charitable givers
12.4%
Veterans
6.5%
With a disability
12.9%
No health insurance
32.0%
Limited English
3.6%

Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.

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