Reagan County, Texas

County seat: Big Lake · Population 3,166 (2025) · 1,175 sq mi

Reagan County is the 219th most populous of Texas's 254 counties, with 3,166 people (2025 estimate). Its county seat is Big Lake. It is part of the West Texas region, one of the 12 Texas Comptroller economic regions. The map shows its 1 city or town and the 7 neighboring counties.

Map of Reagan County, Texas with cities, towns and the county boundary
Reagan County, Texas with its cities and towns, unincorporated communities (CDPs) and neighboring counties. Boundaries: U.S. Census Bureau, 2025. Free to use with attribution (CC BY 4.0).

Reagan County facts

County seat
Big Lake
Population (2025 estimate)
3,166 −7.6% since 2020
Land area
1,175 sq mi 41st largest of 254
Water area
1 sq mi
Population density
3 per sq mi
Established
1903
Named after
John Henninger Reagan American politician (1818-1905)
Largest city
Big Lake 2,783
Median household income
$57,813
Cities and towns
1
ZIP codes
2
Time zone
Central
FIPS code
48383

Cities and towns in Reagan County

Reagan County has 1 incorporated place. Populations count the people living inside Reagan County; cities that cross a county line also list the other counties.

NameTypePopulation 2025Also in
Big Lake (county seat)City2,783

ZIP codes in Reagan County

2 ZIP codes reach into Reagan County. ZIP codes ignore county lines, so some also cover a neighboring county.

Population of Reagan County, 2020–2025

Reagan County shrank by 261 people (−7.6%) between April 2020 and July 2025: 57 more births than deaths and a net loss of 312 people from migration.

Year (July 1)Population
20203,423
20213,257
20223,154
20233,178
20243,146
20253,166

Neighboring counties

Printable Reagan County map

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Sources

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