New River is an unincorporated community and census-designated place (CDP) in Maricopa County, Arizona, United States.

The community was founded by Lord Darrell Duppa in 1868 as a stagecoach stop.

The pavement ended in New River and continued as a dirt road to the city of Prescott.

[5] New River is located in northern Maricopa County and is bordered by the Tonto National Forest to the north, Cave Creek to the east, Phoenix to the south, and Phoenix and Anthem to the west.

New River is approximately 36 miles (58 km) north of downtown Phoenix.

[8] New River is served by Deer Valley Unified School District.

As of August 2018, water is hauled from a filling station operated by Epcor.

New River has attempted to "incorporate" a number of times in its history, so as to control zoning regulations and development in the area.