La Paz Valley is a census-designated place (CDP) in La Paz County, Arizona, United States.

The community is in western La Paz County and is bordered to the north by the town of Quartzsite.

To the south it is bordered by Yuma County.

U.S. Route 95 forms the eastern border of the CDP and runs north into Quartzsite and south 76 miles (122 km) to Yuma.

The Town of Quartzsite operates demand response buses under the name Camel Express that provide weekday service to Quartzsite and La Paz Valley.