78655 ZIP Code — Martindale, TX
Caldwell County, Texas
ZIP code 78655 is located in Martindale, Texas, within Caldwell County. It covers approximately 28.68 square miles and serves a population of 3,671 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 512/737.
About ZIP code 78655
The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $194,400. Owner-occupancy sits near the national average at 66%.
Median household income is $53,750. SNAP benefit usage at 19% of households reflects economic stress in the area.
The dominant occupation class is sales and office, with education and healthcare as the leading industry. The average commute of 32 minutes is near the national average.
College attainment at 20% is below the national average, consistent with a trades and production-oriented local economy.
Health indicators show elevated rates of smoking (22%) compared to national benchmarks. 29% of residents lack health insurance, above the national average.
3,671
population
28.68
sq mi land
Standard
ZIP type
Central (CT)
timezone
78655 ZIP code map
Cities in ZIP code 78655
Below are the cities the US Postal Service accepts for ZIP code 78655. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Martindale | Preferred |
Nearby ZIP codes
78656 Maxwell (6.6 mi)
78644 Lockhart (10.4 mi)
78638 Kingsbury (10.6 mi)
78648 Luling (12.8 mi)
78640 Kyle (13.3 mi)
78666 San Marcos (13.9 mi)
78616 Dale (16.3 mi)
78130 New Braunfels (17.6 mi)
78155 Seguin (17.8 mi)
78610 Buda (18.9 mi)
78123 Mc Queeney (19.9 mi)
Demographics
updated 06/2026
| Population | |
|---|---|
| Total population | 3,671 |
| Population density | 128 / sq mi |
| State FIPS | 48 |
| County FIPS | 055 |
| Geography | |
|---|---|
| Land area | 28.68 sq mi |
| Water area | 0.23 sq mi |
| Latitude | 29.8005 |
| Longitude | -97.8064 |
| Timezone | Central (CT) |
| Area code | 512/737 |
Total population by age
Gender
Race & ethnicity
Economics
updated 06/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 50.2% | 43.7% | 39.5% |
| $50k – $100k | 30.7% | 36.0% | 30.1% |
| $100k – $200k | 16.7% | 16.9% | 22.6% |
| Over $200k | 2.3% | 3.4% | 7.8% |
Demographics & statistics
3,671
Population
128
People per sq mi
46.6
Median age
$53,750
Median household income
$30,324
Per capita income
$194,400
Median home value
$1,064
Median monthly rent
65.5%
Home ownership
12.7%
Poverty rate
9.5%
Unemployment
1,008
Housing units
20.4%
Bachelor's or higher
Age distribution
Male
Female
166
Under 5
137
83
5–9
69
68
10–14
56
142
15–19
117
72
20–24
60
269
25–34
223
135
35–44
111
601
45–54
497
213
55–59
176
84
60–64
70
106
65–74
87
43
75–84
35
28
85+
23
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 739 | 20.1% |
| 18 and over | 2,932 | 79.9% |
| 65 and over | 322 | 8.8% |
| Median age | 46.6 years | |
Race & ethnicity
White
42.8%
Two or more races
26.3%
Hispanic or Latino
26.1%
Black or African American
2.3%
Other race
1.7%
Asian
0.4%
Native Hawaiian / Pacific Islander
0.3%
American Indian / Alaska Native
0.1%
| Group | Count | % |
|---|---|---|
| White | 2,126 | 42.8% |
| Two or more races | 1,309 | 26.3% |
| Hispanic or Latino | 1,298 | 26.1% |
| Black or African American | 112 | 2.3% |
| Other race | 83 | 1.7% |
| Asian | 20 | 0.4% |
| Native Hawaiian / Pacific Islander | 16 | 0.3% |
| American Indian / Alaska Native | 5 | 0.1% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 50.2% | 43.7% | 39.5% |
| $50k – $100k | 30.7% | 36.0% | 30.1% |
| $100k – $200k | 16.7% | 16.9% | 22.6% |
| Over $200k | 2.3% | 3.4% | 7.8% |
Under $10k
1.3%
$10k–$15k
1.3%
$15k–$25k
1.6%
$25k–$35k
18.3%
$35k–$50k
24.9%
$50k–$75k
10.9%
$75k–$100k
15.3%
$100k–$150k
13.6%
$150k–$200k
7.1%
$200k+
5.6%
| Range | % of households |
|---|---|
| Under $10k | 1.3% |
| $10k–$15k | 1.3% |
| $15k–$25k | 1.6% |
| $25k–$35k | 18.3% |
| $35k–$50k | 24.9% |
| $50k–$75k | 10.9% |
| $75k–$100k | 15.3% |
| $100k–$150k | 13.6% |
| $150k–$200k | 7.1% |
| $200k+ | 5.6% |
| Median income | $53,750 |
Housing
Home values
Under $50k
1.1%
$50k–$100k
35.4%
$100k–$150k
8.2%
$150k–$200k
5.8%
$200k–$300k
19.4%
$300k–$500k
17.7%
$500k–$1M
11.2%
$1M+
1.2%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $194,400 |
| Median rent / month | $1,064 |
| Owner occupied | 65.5% |
| Renter occupied | 34.5% |
| Vacant | 6.1% |
| Single-family detached | 65.7% |
| Large apartment buildings | 0.0% |
| Mobile homes | 21.7% |
| Median rooms | 5.5 |
| Avg household size (owned) | 2.82 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.2% |
| 2010–2019 | 17.4% |
| 2000–2009 | 15.5% |
| 1990–1999 | 19.7% |
| 1980–1989 | 11.1% |
| 1970–1979 | 11.9% |
| 1960–1969 | 2.5% |
| 1950–1959 | 1.3% |
| 1940–1949 | 1.5% |
| 1939 or earlier | 18.8% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 1.7% |
| 1 bedroom | 7.6% |
| 2 bedrooms | 32.4% |
| 3 bedrooms | 31.0% |
| 4 bedrooms | 24.9% |
| 5+ bedrooms | 2.5% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 0.4% |
| 1 vehicle | 36.5% |
| 2 vehicles | 29.9% |
| 3 or more | 33.2% |
Heating fuel
| Fuel type | % |
|---|---|
| Electricity | 79.2% |
| Propane / LP gas | 20.1% |
| Fuel oil | 0.7% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 696 | 49.7% |
| Cohabiting couple | 257 | 18.3% |
| Male householder, no spouse | 289 | 20.6% |
| Female householder, no spouse | 159 | 11.3% |
| Households with children under 18 | 467 | 33.3% |
| Households with seniors (65+) | 248 | 17.7% |
| Average household size | 2.62 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 40.7% | 32.0% |
| Married | 44.5% | 57.0% |
| Separated | 0.6% | 1.8% |
| Widowed | 2.6% | 2.3% |
| Divorced | 11.5% | 6.8% |
Education
Less than 9th grade
7.8%
Some HS, no diploma
16.8%
HS graduate
22.8%
Some college, no degree
28.6%
Associate's degree
3.6%
Bachelor's degree
14.9%
Graduate / professional
5.5%
| Metric | % |
|---|---|
| HS diploma or higher | 75.4% |
| Bachelor's or higher | 20.4% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 28 | 5.4% |
| Kindergarten | 19 | 3.7% |
| Elementary school | 231 | 44.5% |
| High school | 188 | 36.2% |
| College / grad school | 53 | 10.2% |
Employment
Industry of employment
Education & healthcare
26.0%
Professional & management
19.8%
Construction
9.4%
Arts, food & hospitality
7.9%
Manufacturing
7.7%
Public administration
7.5%
Retail trade
7.4%
Transportation & utilities
5.0%
Wholesale trade
2.8%
Other services
2.2%
Finance & real estate
2.0%
Agriculture & mining
1.3%
Information
0.9%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 22.8% |
| Service | 29.9% |
| Sales & office | 31.0% |
| Natural resources & construction | 6.4% |
| Production & transportation | 9.9% |
Employment type
| Type | % |
|---|---|
| Private sector | 66.9% |
| Government | 19.2% |
| Self-employed | 13.8% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 83.2% |
| Carpool | 10.6% |
| Public transit | 0.0% |
| Walk | 0.0% |
| Work from home | 3.5% |
| Other means | 2.7% |
| Avg commute (minutes) | 31.7 |
Poverty
All people
12.7%
Under 18 years
17.3%
18 and over
11.6%
Married-couple families
5.7%
Female-led households
9.3%
Income support
| Source | % of households |
|---|---|
| Social Security | 17.0% |
| Retirement income | 20.3% |
| Supplemental Security | 4.1% |
| Cash public assistance | 16.1% |
| Food stamps / SNAP | 19.1% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 41.3% |
| High blood pressure | 36.3% |
| High cholesterol | 34.7% |
| Diabetes | 14.6% |
| Heart disease | 7.0% |
| Stroke | 3.4% |
| Asthma | 9.4% |
| Arthritis | 23.4% |
| Kidney disease | 3.4% |
| Pulmonary disease | 7.6% |
| Cancer | 5.2% |
| Behavior / access | % |
|---|---|
| Smoking | 21.5% |
| Binge drinking | 17.2% |
| No physical activity | 33.8% |
| Less than 7 hrs sleep | 34.6% |
| Depression | 22.4% |
| Fair or poor health | 23.7% |
| Poor mental health | 16.5% |
| Poor physical health | 14.0% |
| No health insurance | 37.4% |
| Visited doctor (checkup) | 69.3% |
| Visited dentist | 46.2% |
| Cholesterol screening | 87.0% |
| Teeth loss | 18.6% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 249 | 8.5% |
| Disability | % |
|---|---|
| Any disability | 17.3% |
| Under 18 | 4.3% |
| 18–64 years | 18.2% |
| 65 and over | 40.4% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 57.1% |
| Public insurance | 22.9% |
| No insurance | 29.0% |
| Uninsured under 19 | 24.7% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 3,368 | 91.7% |
| Spanish | 513 | 15.2% |
| Other Indo-European | 486 | 14.4% |
| Asian & Pacific Islander | 7 | 0.2% |
| Other languages | 20 | 0.6% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 3,079 | 83.9% |
| Born in same state | 3,063 | 83.4% |
| Born in different state | 2,429 | 66.2% |
| Foreign born | 16 | 0.4% |
| Naturalized citizen | 592 | 16.1% |
| Not a US citizen | 120 | 20.3% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| French | 179 | 4.9% |
| Italian | 174 | 4.7% |
| Arab | 81 | 2.2% |
| Ancestry | Count | % |
|---|---|---|
| English | 35 | 1% |
| Polish | 28 | 0.8% |
| German | 11 | 0.3% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 38.2% |
| Internet access | 97.1% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 78655
What city is ZIP code 78655 in?
ZIP code 78655 is primarily assigned to Martindale, Texas.
What county is ZIP code 78655 in?
ZIP code 78655 falls within Caldwell County, Texas.
What is the typical home value in ZIP code 78655?
The median home value in ZIP code 78655 is $194,400.
What is the population of ZIP code 78655?
ZIP code 78655 has an estimated population of 3,671 residents, with a density of 128 people per square mile.
What is the median household income in ZIP code 78655?
The median household income in ZIP code 78655 is $53,750, below the national median of ~$75,000.
What timezone is ZIP code 78655 in?
ZIP code 78655 observes the CST timezone.