LaSalle County on the map of Illinois 2024. Cities, roads, borders and directions in LaSalle County of Illinois.

LaSalle County is located in the central part of Illinois. This cool county was named after Sieur de la Salle (1643-1687), French explorer of the Great Lakes. The county seat of LaSalle County is Ottawa. The county's area is 1,135 square miles. Founded in 1831, today LaSalle County is home to 109 thousand americans. This map shows the borders of LaSalle County as well as neighboring counties, including major highways and natural objecsts as of 2024. Zoom in or out of the map using the plus/minus panel. Move the center of this map by dragging it. Also check out the satellite map of LaSalle County.