Harlem Township is located in Stephenson County, Illinois.

[2] Harlem is Township 27 North, Range 7 East of the Fourth Principal Meridian.

Tisdel along the Old State Road number 2, now Business U.S. Route 20.

Frink, Walker & Company stage line, Chicago to Galena, used this road 1839 to 1854.

This Stephenson County, Illinois location article is a stub.