Yuma County, Arizona

Yuma County
County
Clockwise from top: Old Yuma City Hall, Ocean to Ocean Bridge, Kofa Mountains, Downtown Yuma, Yuma County administration building, McPhaul Suspension Bridge, Yuma County Courthouse and the Sonoran Desert near Yuma.
Flag Seal
Location within the U.S. state of Arizona
Arizona's location within the U.S.
Coordinates: 32°47′13″N 113°58′58″W / 32.786944444444°N 113.98277777778°W / 32.786944444444; -113.98277777778
Country	United States
State	Arizona
Founded	November 9, 1864
Named for	Yuma (Quechan) people
Seat	Yuma
Largest city	Yuma
Area
• Total	5,519 sq mi (14,290 km2)
• Land	5,514 sq mi (14,280 km2)
• Water	5.1 sq mi (13 km2)  0.1%
Population  (2020)
• Total	203,881
• Estimate  (2023)	213,221
• Density	37/sq mi (14/km2)
Time zone	UTC−7 (Mountain)
Congressional districts	7th, 9th
Website	www.yumacountyaz.gov

Yuma County is a county in the southwestern corner of the U.S. state of Arizona. As of the 2020 census, its population was 203,881.^[1] The county seat is Yuma.^[2]

Yuma County includes the Yuma, Arizona Metropolitan Statistical Area.

The county borders three states: Sonora, Mexico, to the south, and two other states to the west, across the Colorado River: California of the United States and the Mexican state of Baja California.

Being 63.8% Hispanic in 2020, Yuma is Arizona's largest majority-Hispanic county.^[3]