Putnam County

US States / H-L / Illinois / Putnam County

Putnam County is named for Israel Putnam, who was a general in the American Revolutionary War.


Created:  January 13, 1825

County Seat:

Hennepin  1831 – present


County Courthouse – Hennepin


Location:  120 North 4th Street / High Street

Built:  1837 – 1838

Style:  Greek Revival

Architect:  Gorham & Durley

Contractor:  J A Williams


Description: The building faces north and is a two story red colored brick structure. The north front has a large portico supported by four large white colored columns rising to a wide pediment at the roof line. Restoration work was completed byTrillium Dell Timberworks in 2010.


Note:  The building is the oldest Courthouse in use in Illinois



N – Bureau County

E – La Salle County 

S – Marshall County

W – Bureau County


Photos taken 2006