| Name | LaSalle County |
| Also Known As | La Salle County |
| Place Type | County |
| Located in | |
| County Seat | Ottawa |
| Coordinates | | Latitude | | 41.2667014 | | 41° 16' 00.1" N | | Longitude | | -88.8834111 | | 88° 53' 00.3" W |
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| Population | 106,913 |
| Elevation | 197 m |
| Surrounding Counties | DeKalb N Kendall NE Grundy E Livingston SE Woodford SW Marshall SW Putnam W Bureau W Lee NW
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| USGS GNIS FeatureID | 422247 |
| Histopolis Place ID | 159371591 |
| Updated May 22, 2011 |
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| Map Layers (check box to show) | Place under cursor |
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Survey:
9 Cities, 18 Villages, 48 Unincorporated Places (u.p.) (Unincorporated Place (u.p.) is assumed unless noted)