Illinois Regional Archives Depository (IRAD) System Illinois State Archives

Piatt County

Piatt County Courthouse Contact Information
Piatt County Courthouse
101 W. Washington St.
Monticello, IL 61856
217-762-9487 – County Clerk
217-762-4966 – Circuit Clerk
217-762-9487 – Recorder

IRAD Depository
Illinois State University
2016 Warehouse Rd.
Campus Box 1520
Normal, IL 61790-1520


Origin of the name of the county

Present area, or parts of it, formerly included in

County Seats

History of county governing board

Township Government

Township Names

Township Map

Pertinent Databases