Castro County, Texas
Castro County, Texas, has 7,295 residents (July 2025 estimate). Its county seat is Dimmitt. It uses Central Time and covers 894 sq mi (2,317 km²) of land.
- Resident population, July 2025
- 7,295
- Land area
- 894 sq mi (2,317 km²)
- County seat or government
- Dimmitt
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $56,776 ± $10,779
- Median home value
- $95,000 ± $31,479
- Median rent, with utilities
- $896 ± $180
- Homes lived in by their owners
- 63.6% ± 5.1 points
- County type
- County
- Metro or micro area
- Outside any metro or micro areaNext to: Hereford, TX micro area, Plainview, TX micro area, and Amarillo, TX metro area
- Water area
- 4.85 sq mi (12.6 km²)
- State
- Texas
- County code (FIPS)
- 48069
- Coordinates (central point)
- 34.533621, -102.258786
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in Castro County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Central TimeAmerica/Chicago | UTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
- 7904518,189 people
- 793477,176 people
- 790885,302 people
- 790274,858 people
- 790431,462 people
- 790421,218 people
- 790311,156 people
- 790521,101 people
- 79063665 people
- 790850 people
10 ZIP Code areas overlap Castro County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
School districts in Castro County, largest first
- Hereford Independent School District17,939 people
- Dimmitt Independent School District5,232 people
- Springlake-Earth Independent School District1,420 people
- Hart Independent School District1,274 people
- Happy Independent School District1,128 people
- Nazareth Independent School District686 people
- Lazbuddie Independent School District504 people
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Dimmitt, Texas (city)4,107 people
- Hart, Texas (city)919 people
- Nazareth, Texas (city)273 people
- Summerfield, Texas (CDP)0 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Swisher County, Texas29 mi east
- Parmer County, Texas30 mi west
- Lamb County, Texas33 mi south
- Deaf Smith County, Texas34 mi northwest
- Randall County, Texas36 mi northeast
- Hale County, Texas41 mi southeast
Before using this answer on a form
Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.
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