Illinois Regional Archives Depository (IRAD) System Illinois State Archives

LaSalle County

LaSalle County Courthouse Contact Information
County Clerk or Recorder
LaSalle County Governmental Center
707 Etna Rd.
Ottawa, IL 61350
815-434-8202 – County Clerk
815-434-8226 – Recorder

Circuit Clerk
LaSalle County Courthouse
119 W. Madison St.
Ottawa, Illinois 61350

IRAD Depository
Founders Memorial Library
Rm. 245B
Northern Illinois University
DeKalb, IL 60115


Origin of the name of the county

LaSalle County Governmental Center

Present area, or parts of it, formerly included in

County Seats

History of county governing board

Township Government

Township Names

Township Map

LaSalle County Township Map

Pertinent Databases