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Boone County, Illinois

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Boone County, Illinois
Floyd Hopkins Block (7937909994) — CC BY-SA 2.0, Teemu008 from Palatine, Illinois · source

About Boone County

Boone County is a county located in the U.S. state of Illinois. As of the 2020 census, the population was 53,448. Its county seat is Belvidere. Boone County is included in the Rockford, Illinois metropolitan area.

Description adapted from Wikipedia, CC BY-SA 4.0.

Boone County at a glance

County seat
Belvidere
Population
53,448 (2020)
Land area
282 sq mi
Founded
1837

Largest communities in Boone County

  1. Belvidere Township29,441
  2. Belvidere County seat25,339
  3. Caledonia Township7,294
  4. Poplar Grove Township5,131
  5. Bonus Township4,375

History of Boone County

Unlike most of Illinois, much of Northern Illinois was not submerged in a shallow prehistoric sea. As a result, bedrock found in the area now bounded as Boone County is almost entirely Ordovician, as opposed to nearby counties like McHenry and Carroll which contain large areas of later Silurian bedrock. Till and outwash from the Illinoian glaciation covers area bedrock to a depth of several hundred feet. The county's proximity to the driftless area protected the region somewhat from the more recent Wisconsin glaciation. As a result, the county's northern townships resemble a driftless-like area, with higher peak elevations and more surface detail compared to the southern townships dominated by the broad flood plains of the Kishwaukee River and its tributaries.

Adapted from Wikipedia, CC BY-SA 4.0.

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  2. 02

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Part of Illinois Voter Check

This is the Boone County page of Illinois Voter Check, a project of True the Vote, pointing Illinois voters at the official tools that already exist — and at Scan Check Protect to verify your registration.

Where anything here differs from what Boone County or the Illinois State Board of Elections publishes, they are right and this page is not.