King St, Belvidere, IL Property Records

Boone County property records for 23 addresses on King St, Belvidere, IL · Last verified July 2026

King St Highlights

Properties 23
Median Sale Price $130,000
Deeds and Mortgages on File 27
Median Price per Sqft $101
Owner Occupied 78%
Median Annual Tax Bill $3,331
Median Year Built 1969
Median Ownership Tenure 11 years

Properties on King St

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

420 King St

3 bd · 1.5 ba · 1,744 sqft · 0.199 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$100,000Jul 2003 $3,6422025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

421 King St

3 bd · 1 ba · 1,000 sqft · 0.38 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$101,000May 2017 $3,3312025 Amount on Record Sep 1996 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

426 King St

4 bd · 2 ba · 1,224 sqft · 0.133 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$145,000Dec 2020 $4,5082025 Amount on Record Jun 2001 2 Names on Record Assessor + 2 DocumentsUpdated Jul 2026

427 King St

3 bd · 1 ba · 1,168 sqft · 0.22 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Jul 2016 $2,5212025 Amount on Record Jan 1994 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

433 King St

3 bd · 1 ba · 1,040 sqft · 0.22 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$112,500Sep 2002 $2,9622025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

436 King St

3 bd · 2 ba · 1,236 sqft · 0.133 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,7872025 1 Name on Record AssessorUpdated Jul 2026

439 King St

3 bd · 1.5 ba · 1,156 sqft · 0.22 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$99,900Dec 2016 $3,6322025 Amount on Record Mar 2009 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

444 King St

1 bd · 1 ba · 420 sqft · 0.133 acres

Last Sale Tax Bill Prior Sale Owner Records
—Apr 2003 $1,6152025 2 Names on Record AssessorUpdated Jul 2026

517 King St

3 bd · 2 ba · 1,440 sqft · 0.146 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$48,346Dec 2004 $4,3312025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

518 King St

3 bd · 1 ba · 1,400 sqft · 0.133 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$80,000Mar 2016 $5,4142025 —Mar 2016 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

519 King St

2 bd · 1 ba · 960 sqft · 0.146 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$68,900Oct 2015 $2,2662025 Amount on Record Sep 2010 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

521 King St

3 bd · 1 ba · 864 sqft · 0.293 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$2,3122025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

524 King St

3 bd · 1 ba · 1,400 sqft · 0.133 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$172,000Mar 2006 $5,4142025 1 Name on Record Assessor + 2 DocumentsUpdated Jul 2026

525 King St

2 bd · 1 ba · 768 sqft · 0.293 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$30,000Sep 2015 $2,9532025 Amount on Record Aug 1985 1 Name on Record AssessorUpdated Jul 2026

528 King St

4 bd · 2.5 ba · 1,768 sqft · 0.199 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$120,000May 2017 $4,4782025 —Oct 2016 1 Name on Record Owner Occupied Assessor + 5 DocumentsUpdated Jul 2026

532 King St

3 bd · 2 ba · 1,680 sqft · 0.199 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$184,300Nov 2021 $6,1062025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

542 King St

3 bd · 1 ba · 1,468 sqft · 0.133 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$26,500Apr 1975 $3,3012025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

547 King St

2 bd · 2 ba · 884 sqft · 0.146 acres

Last Sale Tax Bill Prior Sale Owner Records
$206,250Sep 2024 $3,6382025 Amount on Record Aug 2019 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

548 King St

3 bd · 1 ba · 1,012 sqft · 0.141 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$77,500Apr 1996 $2,4722025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

551 King St

3 bd · 1.5 ba · 864 sqft · 0.158 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$75,000Jan 1994 $1,6892025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

602 King St

4 bd · 3 ba · 1,518 sqft · 0.188 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Oct 1999 $5,4442025 1 Name on Record Owner Occupied Assessor + 4 DocumentsUpdated Jul 2026

610 King St

3 bd · 2 ba · 1,910 sqft · 0.3 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$100,000Jul 2010 $2,3252025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

616 King St

3 bd · 2 ba · 2,118 sqft · 0.439 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$130,000Jun 2019 $5,7292025 —Jan 1999 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

Property Records in Nearby Streets