Circle City is an unincorporated retirement community in Maricopa County, Arizona, in the United States. It derives its name from the fact that the layout of roads in the community is made to look similar to a crop circle, with Duncan Park as the center. It is located almost exactly 14 miles northwest from Surprise, Arizona on the US 60. A retirement community is a very broad, generic term that covers many varieties of housing for retirees and seniors - especially designed or geared for people who no longer work, or restricted to those over a certain age. ... Maricopa County is located in the central part of the U.S. state of Arizona. ... Official language(s) None Capital Phoenix Largest city Phoenix Area  Ranked 6th  - Total 113,998 sq mi (295,254 km²)  - Width 310 miles (500 km)  - Length 400 miles (645 km)  - % water 0. ... A crop circle pattern. ... County Maricopa County, Arizona Area  - Total  - Water 180. ... US 60 is an east-west United States highway, running 2,670 miles (4,300 km) from Virginia to Arizona. ...