Illinois St, South Beloit, IL Property Records

Winnebago County property records for 11 addresses on Illinois St, South Beloit, IL · Last verified October 2026

Illinois St Highlights

Properties 11
Median Sale Price $68,000
Deeds and Mortgages on File 7
Median Price per Sqft $68
Owner Occupied 73%
Median Annual Tax Bill $2,017
Median Year Built 1931
Median Ownership Tenure 10 years

Properties on Illinois St

Owner names and prior sale amounts shown locked below are available instantly with a free trial.

510 Illinois St

2,400 sqft · built 1971 · 0.27 acres

Last Sale Tax Bill Prior Sale Owner Records
$180,500Jul 2005 $5,7902025 Owner on Record AssessorUpdated Aug 2026

512 Illinois St

3 bd · 1 ba · 672 sqft · built 1927 · 0.15 acres

Last Sale Tax Bill Prior Sale Owner Records
$20,000Jan 2016 $5142025 Amount on Record Jul 2005 Owner on Record Owner Occupied AssessorUpdated Oct 2026

515 Illinois St

3 bd · 1 ba · 1,072 sqft · built 1931 · 0.219 acres

Last Sale Tax Bill Prior Sale Owner Records
$75,000Feb 2009 $2,0172025 —Nov 2008 Owner on Record Owner Occupied AssessorUpdated Aug 2026

516 Illinois St

2 bd · 1.5 ba · 991 sqft · built 1915 · 0.15 acres

Last Sale Tax Bill Prior Sale Owner Records
$68,000May 2017 $1,4372025 Amount on Record Dec 2013 2 Owners on Record Assessor + 2 DocumentsUpdated Oct 2026

519 Illinois St

3 bd · 1 ba · 772 sqft · 0.16 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jun 2001 $6742025 Owner on Record Owner Occupied AssessorUpdated Aug 2026

522 Illinois St

3 bd · 2 ba · 672 sqft · built 1950 · 0.15 acres

Last Sale Tax Bill Prior Sale Owner Records
$70,000Jun 2022 $4942025 —Jun 2022 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

525 Illinois St

0.389 acres

Last Sale Tax Bill Prior Sale Owner Records
—Nov 2022 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

528 Illinois St

3 bd · 1 ba · 672 sqft · built 1925 · 0.15 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,2162025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

529 Illinois St

0.189 acres

Last Sale Tax Bill Prior Sale Owner Records
—Nov 2022 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

534 Illinois St

2 bd · 554 sqft · built 1930 · 0.15 acres

Last Sale Tax Bill Prior Sale Owner Records
$12,000Nov 2011 $1,0582025 —Aug 2011 2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

537 Illinois St

3 bd · 1,007 sqft · built 1942 · 0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$35,000Oct 1998 $1,9212025 2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

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