Martindale, TX · standard
ZIP Code 78655
Caldwell County, Texas - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 2,739
- 30/sq mi Moderate-density area
- $55,952
- Median income Below-median income area
- $269,900
- Median home value Near-median home value
- 20.1%
- Bachelor's or higher Near-average bachelor's attainment
National ZIP placement
Martindale pairs one of the lowest household incomes in the country with above-median home values, in a rural, homeowner-dominated area.
- 22nd pct
- household income, US ZIPs
- Top 39%
- home value, US ZIPs
- 30
- people per sq mi
- 65%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 78655 against every reporting US ZIP.
FHFA HPI release change
What changed in the latest House Price Index year
- FHFA House Price Index values in ZIP 78655 (Martindale, TX) fell -6.9% from 2023 to 2024.
ZIP code 78655 covers 92.2 square miles in Martindale, Caldwell County, Texas (a standard USPS delivery area), with a modest 2,739 residents on file, a density of 30 people per square mile, in the Chicago time zone.
ZIP 78655 reports a modest median household income of $55,952 (26% below the average Texas ZIP), while per-capita income is $29,805. Unemployment is 13.0%, an important qualifier alongside the household-income figure. Median home value is $269,900 (9% above the average Texas ZIP) and median rent is $1,093; 65.3% of occupied homes are owner-occupied.
Educational attainment sits below the national norm: 20.1% of adults hold a bachelor's degree or higher, the median age is 44.6, and the average commute is 33 minutes. The page also surfaces 5 ZIP codes within roughly 10 miles and 6 more in Caldwell County, so 78655 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Top industries in ZIP 78655
Top 5 sectors by establishment count in Martindale, TX
Which industries have the most business establishments in ZIP 78655.
- Construction
Construction
9 establishments
- Retail trade
Retail trade
5 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
5 establishments
- Health care and social assistance
Health care and social assistance
4 establishments
- Other services (except public administration)
Other services (except public administration)
4 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 78655, Martindale, TX · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
2,739
Population
92.2
Area (sq mi)
30
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 78655?
44.6
Median Age
51.1%
Male
48.9%
Female
14.4%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$55,952
Median Household Income
-26% vs state ZIP avg
$29,805
Per Capita Income
16.5%
Poverty Rate
13.0%
Unemployment Rate
33.4 min
Mean Commute Time
How ZIP 78655 ranks among Texas ZIPs
Martindale, TX household income vs. every Texas ZIP code
Median household income among 1,737 reporting Texas ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$55,952 24th percentile higher than 24% of 1,737 Texas ZIPs
Each bar is a $20K-wide band; taller bars hold more Texas ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
1,433housing units
1,433
Total Housing Units
1,388
Occupied Units
45
Vacant Units
2.69
Avg Household Size
Occupancy Type
$269,900
Median Home Value
+9% vs state ZIP avg
$1,093
Median Rent
1991
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 44 business establishments in ZIP 78655, employing approximately 190 people with a combined annual payroll of $7,059,000.
44
Businesses
190
Employees
$7.1M
Annual Payroll
6
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 9 | 20.4% |
| Retail trade | 5 | 11.4% |
| Professional, scientific, and technical services | 5 | 11.4% |
| Health care and social assistance | 4 | 9.1% |
| Other services (except public administration) | 4 | 9.1% |
| Accommodation and food services | 3 | 6.8% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 78655 vs 78670 →
ZIP 78655 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 78666
San Marcos (78666)
63,836 residents
- 78655 2,739
Martindale (78655)
2,739 residents
- 78656 2,271
Maxwell (78656)
2,271 residents
- 78661 335
Prairie Lea (78661)
335 residents
- 78622 296
Fentress (78622)
296 residents
- 78670 168
Staples (78670)
168 residents
What this shows Among its immediate neighbors, ZIP 78655 ranks #2 by population - useful context the national average alone can't give.
ZIP 78655 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 78661
Prairie Lea (78661)
$82,896 median income
- 78656
Maxwell (78656)
$81,346 median income
- 78670
Staples (78670)
$78,625 median income
- 78655
Martindale (78655)
$55,952 median income
- 78666
San Marcos (78666)
$54,737 median income
What this shows By household income, ZIP 78655 ranks #4 of 5 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 78655, both outside TX so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (2,739 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Caldwell County
Related Areas
Frequently Asked Questions
What county is ZIP code 78655 in?
ZIP code 78655 (Martindale) is located in Caldwell County, Texas. Caldwell County contains multiple ZIP codes, see the full list at /counties/caldwell-tx.
What is the population of ZIP code 78655?
ZIP code 78655 in Martindale, TX has a population of 2,739 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 78655?
The median household income in ZIP 78655 is $55,952, which is 27% below the national average of $76,288.
What is the average home value in ZIP 78655?
The median home value in ZIP 78655 is $269,900, which is 3% below the national average of $278,155.
What is the demographic makeup of ZIP 78655?
The largest racial group in ZIP 78655 is Two or More Ethnicities at 46.5%. Hispanic or Latino residents make up 63.7% of the population.
How many businesses are in ZIP code 78655?
ZIP code 78655 has 44 business establishments employing approximately 190 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 78655?
The top industries by establishment count in ZIP 78655 are: Construction (9), Retail trade (5), Professional, scientific, and technical services (5). There are 6 industry sectors represented in total.
What is the education level in ZIP code 78655?
In ZIP code 78655, 48.5% of residents aged 25+ have a high school diploma or higher, and 20.1% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 78655?
The mean commute time for workers in ZIP code 78655 is 33.4 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 78655?
In ZIP code 78655, approximately 65.3% of occupied housing units are owner-occupied and 34.7% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 78655?
The poverty rate in ZIP code 78655 is 16.5% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 78655's numbers, next.
- See how ZIP 78655 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Martindale, TX ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.