San Tan Valley, Arizona

San Tan Valley, Arizona
Location in Pinal County and Arizona
San Tan Valley
San Tan Valley
Coordinates: 33°10′13″N 111°34′20″W / 33.17028°N 111.57222°W / 33.17028; -111.57222
CountryUnited States
StateArizona
CountyPinal
FoundedJuly 1, 2009
Area
  Total
75.79 sq mi (196.30 km2)
  Land75.79 sq mi (196.30 km2)
  Water0.00 sq mi (0.00 km2)
Elevation
1,493 ft (455 m)
Population
 (2020)
  Total
99,894
  Estimate 
(2022)
103,000
  Density1,359.0/sq mi (524.7/km2)
Time zoneUTC–7 (Mountain (MST) (no DST))
ZIP Codes
85140, 85142, 85143, 85144
Area code480
FIPS code04-64210
GNIS feature ID2629370
Sales tax6.7%

San Tan Valley is an unincorporated community and census-designated place in northern Pinal County, Arizona, United States. The population was 99,894 at the 2020 census, it is the largest unincorporated community in Pinal County.