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Castro County, TX
4 cities and towns and 4 ZIP codes in Castro County, Texas.
Population
7,344
Land area
894sq mi
People per sq mi
8
ZIP codes
4
Cities and towns in Castro County
Castro County at a glance
- Castro County is 93% less dense than Texas as a whole.
- Households here earn a median of $56,776 a year, 28% less than the Texas figure of $78,476.
- A typical owner-occupied home is valued at $95,000 (67% below Texas) and median rent is $896 a month.
- The biggest population centers are Dimmitt (4,107), Hart (919) and Nazareth (273).
Local data for Castro County, TX
Counts from official public data
Housing and community stats
Castro County, TX, American Community Survey 2020-2024
Median household income
$56,776
Poverty rate
19.2%
Median home value
$95,000
Median rent
$896/mo
Homeownership
63.6%
Bachelor's or higher
18.6%
Median age
34.5
Average commute
15.2 min
Largest reported origins and ancestries: Mexican Americans (3,851), German Americans (751), Guatemalan Americans (215).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
3.0%
Sep 2026, +0.1 pts in a year
Average annual pay
$48,236
2,927 jobs, 2025
Income per person
$107,286
BEA, 2024
Federal spending
$60.5M
FY 2026, $8,212 per person
PPP loans
$26.3M
476 loans, 2,832 jobs reported
Campaign donations
$52.6K
Itemized, 2026 cycle
How people get to work
Castro County, TX, workers 16 and older. American Community Survey 5-year estimates
- Drove alone68.1%
- Carpooled27.2%
- Public transit0.7%
- Walked0.7%
- Bicycle0.0%
- Taxi, ride-hailing, motorcycle or other0.0%
- Worked from home3.2%
Average one-way commute: 15.2 minutes for people who do not work from home.
Environment and hazard risk
Castro County, TX, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: hail
Storm events since 1996
628
Most often hail
Flood insurance policies
4
0.2% of homes, county
July high / Jan low
92° / 22°F
21.0 inches of rain a year
Health statistics
Share of adults in Castro County, TX, CDC PLACES estimates
Obesity
38.2%
U.S. 33.3% +4.9 pts
Diabetes
15.5%
U.S. 12.1% +3.4 pts
Smoking
13.3%
U.S. 12.8% +0.5 pts
Uninsured (18-64)
27.7%
U.S. 11.1% +16.6 pts
Cities, towns and ZIP codes in Castro County
Population shown
Frequently asked questions
- What is the largest city in Castro County, TX?
- Dimmitt is the largest city or town in Castro County, with about 4,107 residents.
- How many ZIP codes are in Castro County?
- Castro County includes 4 ZIP Code Tabulation Areas, including 79027, 79043, 79063, 79085.
- What is the population of Castro County, TX?
- About 7,344 people live in Castro County, based on American Community Survey 5-year estimates.
- What counties border Castro County?
- Castro County borders Randall County, Hale County, Deaf Smith County, Lamb County, Parmer County, Swisher County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023