Illinois Regional Archives Depository (IRAD) System Illinois State Archives

Mason County

Mason County Courthouse Contact Information
Mason County Courthouse
125 N. Plum St.
Havana, IL 62644
309-543-6661 – County Clerk
309-543-6619 – Circuit Clerk
309-543-6661 – Recorder

IRAD Depository
LIB 144
University of Illinois at Springfield
One University Plaza, MS BRK 140
Springfield IL 62703-5407


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

Mason County Township Map

Pertinent Databases