| ZIP Codes: | 4 ZIP Codes (4 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Code: | 806 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:13:52 PM |
| Population: | 6,985 [See All] |
| FIPS: | 48069 |
| Land Area: | 586 sq mi |
| Water Area: | 4 sq mi |
| Coordinates: | 34.5303, -102.2972 |
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6,985 residents live across 4 ZIPs covering 586 sq mi, served by 4 distinct USPS-recognized cities.
Population moved from 7,391 to 6,985 from 2014 to 2024 — a -5.5% change. 0 ZIPs gained residents, 4 lost.
The county's wealthiest ZIP 79063 (Nazareth, $110,938 median) and poorest ZIP 79027 (Dimmitt, $50,865) are 13.3 miles apart — a 2.2× income gap across local geography.
Median home values vary 4.1× across this county — from $60,200 in 79043 (Hart) to $248,900 in 79063 (Nazareth).
Density varies 2× across the county — from 8 people/sq mi in 79063 (Nazareth) to 16 in 79027 (Dimmitt).
Educational attainment ranges from 10.5% bachelor's+ in 79043 (Hart) to 30.3% in 79063 (Nazareth) — the breadth of educational profiles across the area.
Within Texas, this is the #186 most populous of 254 counties and ranks #84 for median household income .
Weighted by population, the typical household earns about $58,068 across the county — reflecting what a typical resident sees, not a simple ZIP average.
19.8% of adults age 25+ hold a bachelor's degree or higher (833 of 4,208 reporting).
4 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.
Castro County lost 5.5% of residents between 2014 and 2024.