Wintersburg is an unincorporated community and census-designated place in Maricopa County, Arizona, United States, located 48 miles (77 km) west of downtown Phoenix and 17 miles (27 km) west of Buckeye along Salome Highway. It is 4 miles (6 km) south of Exit 98 on Interstate 10. As of the 2020 census, Wintersburg had a population of 51,^[2] down from 136 in 2010.

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Wintersburg, Arizona
Census-designated place
Wintersburg Post Office – 1931
Location in Maricopa County, Arizona
Wintersburg Show map of Arizona Wintersburg Show map of the United States
Coordinates: 33°25′28″N 112°52′05″W
Country	United States
State	Arizona
County	Maricopa
Area [1]
• Total	0.59 sq mi (1.53 km2)
• Land	0.59 sq mi (1.53 km2)
• Water	0.00 sq mi (0.00 km2)
Elevation	1,008 ft (307 m)
Population  (2020)[2]
• Total	51
• Density	86.15/sq mi (33.24/km2)
Time zone	UTC-7 (Mountain (MST))
ZIP code	85354 (Tonopah)
FIPS code	04-84000

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Wintersburg is home to the Palo Verde Nuclear Generating Station, the largest nuclear power plant in the United States.

As of the census^[4] of 2010, there were 136 people living in the CDP. The population density was 274.5 people per square mile. The racial makeup of the CDP was 82% White, 2% Black or African American, 1% Native American, 2% Pacific Islander, and 12% from other races. 26% of the population were Hispanic or Latino of any race.