Map of Irion County, Texas

Irion County (/ˈaɪriən/ EYE-ree-ən) is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, its population was 1,513. Its county seat is Mertzon. The county is named for Robert Anderson Irion, a secretary of state of the Republic of Texas.

Irion County is included in the San Angelo metropolitan statistical area.

Irion County overview:
Name:	Irion County
FIPS code:	48-235
State:	Texas
Founded:	1889
Named for:	Robert Anderson Irion
Seat:	Mertzon
Largest city:	Mertzon
Total Area:	1,052 sq mi (2,720 km²)
Land Area:	1,052 sq mi (2,720 km²)
Total Population:	1,513
Population Density:	1.4/sq mi (0.56/km²)
Time zone:	UTC−6 (Central)
Summer Time Zone (DST):	UTC−5 (CDT)
Website:	www.co.irion.tx.us

Irion County location map. Where is Irion County?

Irion County location on the U.S. Map. Where is Irion County. — Location of Irion County in the the United States.

Irion County location on the Texas map. Where is Irion County. — Location of Irion County in Texas.

History

From 1858 to 1861, Butterfield Overland Mail crossed the region.

In 1876, John Arden brought the first flock of sheep from California, and Billy Childress established the Longhorn 7D Ranch.

The Texas Legislature formed Irion County from Tom Green County in 1889. Sherwood became the county seat.

Oil was discovered in Irion County in 1928.

In 1936, Mertzon became the county seat.

Currently, the Old Irion County Courthouse in Sherwood is the only property in the county listed on the National Register of Historic Places.

Irion County Road Map

Irion CountyStreet Map. — Street map of Irion County, Texas. Source: OpenStreetMap (OSM)

Irion CountyMap — Irion Countypolitical map.

Geography

According to the U.S. Census Bureau, the county has a total area of 1,052 square miles (2,720 km), of which 1,052 sq mi (2,720 km) are land and 0.07 square miles (0.18 km) (0.01%) is covered by water. The Spraberry Trend, the third-largest oil field in the United States by remaining reserves, underlies much of the county.