Whiteside County, Illinois

Whiteside County stretches along the Mississippi River in northwestern Illinois. Morrison is the county seat, and it’s a small town with a surprisingly grand courthouse.

The county is home to the scenic Hennepin Canal Parkway, which is perfect for biking and fishing. It also has a rich industrial history, especially in Sterling and Rock Falls.

Agriculture drives the local economy, while Whiteside County brings together a rich history and scenic landscapes. It’s a place where tradition and progress go hand in hand.

CategoryDetails
County NameWhiteside County
County SeatMorrison
EtymologyNamed in honor of Samuel Whiteside, a state legislator
Cities, Towns, and CommunitiesMorrison, Sterling, Rock Falls, and several smaller communities
Interstates and HighwaysInterstate 88, U.S. Route 30, U.S. Route 67, Illinois Route 40
FIPS Code17-195
Total Area (Land and Water)1,231 square miles (land: 1,208 sq mi, water: 23 sq mi)
Adjacent Counties (and Direction)Carroll County (North), Ogle County (Northeast), Lee County (East), Bureau County (Southeast), Henry County (South), Rock Island County (Southwest), Clinton County, Iowa (West)
Time ZoneCentral Time Zone (CT)
PopulationApproximately 58,000
StateIllinois
Coordinates41.7344° N, 89.6758° W
Major LandmarksThe Sterling-Rock Falls Historic District, Lowden State Park, and the Grand Detour Visitor Center
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