Whiteside County Map, Illinois

Written and Fact-checked by | Updated On: April 26, 2026 | 14:30 ET

Map of Whiteside County - Whiteside County is a county located in the U.S. state of Illinois. Whiteside County Map showing cities, highways, important places and water bodies. Get Where is Whiteside County located in the map, major cities in Whiteside county, population, areas, and places of interest.

Whiteside County Map, Illinois

Whiteside County Map, Illinois

About Whiteside County Map, Illinois: The map showing the county boundary, county seat, major cities, highways, water bodies and neighbouring counties.

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Whiteside County, Illinois

Whiteside County is a county located in the U.S. state of Illinois. It's county seat is Morrison. As per 2020 census, the population of Whiteside County is 55305 people and population density is square miles. According to the United States Census Bureau, the county has a total area of 684 sq mi (1,772 km2). Whiteside County was established on 1836.

Facts about Whiteside County, Illinois

CountryUnited States
StateIllinois
RegionNorthwestern Illinois
County SeatMorrison
Named AfterSamuel Whiteside
Established1836
Organized1836
Coordinates41.75° N, 89.92° W
Total Area~697 sq mi
Land Area~688 sq mi
Water Area~9 sq mi
Population (2020)~55,262
Population RankMid-sized county in Illinois
Largest CitySterling
Main IndustriesManufacturing, Agriculture, Healthcare, Retail
Major HighwaysInterstate 88, U.S. Route 30, Illinois Route 2
Time ZoneCentral Time (UTC−06:00)
Known ForRock River corridor, manufacturing heritage, rural communities
Websitehttps://www.whiteside.org

Ctities in Whiteside county

City NameTypePopulation (2020)Pop. DensityArea
AlbanyVillage864806.7/sq mi (311.5/km2)1.071 sq mi (2.77 km2)
ColetaVillage167451.4/sq mi (174.3/km2)0.37 sq mi (0.96 km2)
Deer GroveVillage3892.5/sq mi (35.7/km2)0.411 sq mi (1.06 km2)
ErieVillage1,5181,100.0/sq mi (424.7/km2)1.38 sq mi (3.57 km2)
FultonCity3,6471,559.9/sq mi (602.3/km2)2.338 sq mi (6.06 km2)
LyndonVillage537709.4/sq mi (273.9/km2)0.757 sq mi (1.96 km2)
MorrisonCity4,0851,622.3/sq mi (626.4/km2)2.518 sq mi (6.52 km2)
ProphetstownCity1,9461,453.3/sq mi (561.1/km2)1.339 sq mi (3.47 km2)
Rock FallsCity8,7892,206.6/sq mi (852.0/km2)3.983 sq mi (10.32 km2)
SterlingCity14,7642,549.5/sq mi (984.4/km2)5.791 sq mi (15 km2)
TampicoVillage6891,748.7/sq mi (675.2/km2)0.394 sq mi (1.02 km2)

Roads and Highways in Whiteside County, Illinois

Whiteside County is connected by major highways that provide access to northwestern Illinois and nearby Iowa.

  • Interstate 88 – runs east-west through the county, connecting Sterling to Dixon and the Chicago suburbs
  • U.S. Route 30 – runs east-west, linking Sterling to Rock Falls and Morrison
  • U.S. Route 52 – runs north-south, connecting the county to Savanna and Amboy
  • Illinois Route 2 – runs north-south along the Rock River, linking Sterling to Dixon and Rockford
  • Illinois Route 78 – runs north-south, connecting Morrison to Mount Carroll and Jacksonville

Neighboring Counties of Whiteside County

  • Ogle County (east)
  • Lee County (southeast)
  • Bureau County (south)
  • Carroll County (northwest)
  • Rock Island County (west)
  • Clinton County, Iowa (west/northwest)

Top Attractions in Whiteside County, Illinois

Whiteside County offers riverfront views, parks, and historic sites centered around Sterling and Rock Falls.

  • Rock River – Provides scenic views, boating, and fishing opportunities.
  • Lowell Park – A large park with trails, picnic areas, and river access.
  • Lawrence Park – Offers recreational facilities and community events.
  • Whiteside County Historical Society Museum – Highlights local history and heritage.
  • Sinnissippi Park (nearby) – Features gardens, trails, and outdoor spaces.
  • Downtown Sterling – Features shops, dining, and historic architecture.
  • Whiteside County Fairgrounds – Hosts fairs and local events.

Distance from Whiteside County to Nearby Cities

  • Sterling to Rockford – 60 mi (97 km)
  • Sterling to Chicago – 115 mi (185 km)
  • Sterling to Davenport – 50 mi (80 km)
  • Sterling to Peoria – 90 mi (145 km)
  • Sterling to Dubuque – 80 mi (129 km)

FAQs about Whiteside County

Where is Whiteside County located?

Whiteside County is located in northwestern Illinois, centered around the cities of Sterling and Rock Falls.

What is Whiteside County known for?

The county is known for its riverfront scenery, parks, and historic communities.

What is the county seat of Whiteside County?

Morrison is the county seat, while Sterling and Rock Falls are the largest cities.

Are there outdoor activities in Whiteside County?

Yes, visitors can enjoy parks, rivers, trails, and outdoor recreation throughout the county.

How can I reach Whiteside County?

Whiteside County is accessible via Interstate 88, U.S. Routes 30 and 52, and several Illinois state highways.