Frankfort, Illinois

Frankfort, Illinois
Village
St. Peter's United Church of Christ, Frankfort
Location of Frankfort in Will and Cook Counties, Illinois
Coordinates: 41°29′53″N 87°50′58″W / 41.49806°N 87.84944°W / 41.49806; -87.84944
CountryUnited States
StateIllinois
CountiesWill, Cook
TownshipsFrankfort, Rich
Incorporated1879
Government
 • TypeMayor-Council
 • MayorKeith Ogle (R)
Area
 • Total
15.80 sq mi (40.91 km2)
 • Land15.80 sq mi (40.91 km2)
 • Water0 sq mi (0.00 km2)
Elevation
735 ft (224 m)
Population
 (2020)
 • Total
20,296
 • Density1,285.0/sq mi (496.14/km2)
Time zoneUTC-6 (CST)
 • Summer (DST)UTC-5 (CDT)
ZIP code
60423
Area code815
FIPS code17-27624
GNIS feature ID2398915
Websitewww.frankfortil.org

Frankfort is a village in Will County and Cook County in the U.S. state of Illinois. It is a suburb of Chicago, about 28 miles (45 km) southwest of the city. As of the 2020 census, the population was 20,296.

Frankfort's historic downtown area contains the Frankfort Grainery, Breidert Green, and part of the Old Plank Road Trail, a 22-mile-long paved recreation trail. The village also contains Commissioners Park and multiple schools, including Lincoln-Way East High School, Hickory Creek Middle School, and Dr. Julian Rogus School.