LaSalle County, Illinois

county in Illinois, United States

LaSalle County is located in the North Central region of the U.S. state of Illinois. It has an estimated population of 111,241 as of 2014 and its county seat and largest city is Ottawa.[1]


  1. "Find a County". National Association of Counties. Archived from the original on 2011-05-31. Retrieved 2011-06-07.