La Paz County, Arizona

33°50′25″N 113°56′34″W / 33.84028°N 113.94278°W / 33.84028; -113.94278

La Paz County, Arizona
Location within the U.S. state of Arizona
Coordinates: 33°50′25″N 113°56′34″W / 33.8403°N 113.9428°W / 33.8403; -113.9428
Country United States
State Arizona
FoundedJanuary 1, 1983
Named afterLa Paz, Arizona
SeatParker
Largest townParker
Area
 • Total
4,514 sq mi (11,690 km2)
 • Land4,500 sq mi (12,000 km2)
 • Water14 sq mi (36 km2)  0.3%
Population
 (2020)
 • Total
16,557
 • Estimate 
(2024)
16,992
 • Density3.7/sq mi (1.4/km2)
Time zoneUTC−7 (Mountain)
Congressional district9th
Websitewww.co.la-paz.az.us

La Paz County (Spanish: Condado de La Paz) is the 15th county in the U.S. state of Arizona, located in the western part of the state. As of the 2020 census, its population was 16,557, making it the second-least populous county in Arizona. The county seat is Parker. The name of the county is the Spanish word for "the peace", and is taken from the early settlement (later ghost town) of La Paz along the Colorado River.