E Union St, Oconomowoc, WI Property Records

Waukesha County property records for 10 addresses on E Union St, Oconomowoc, WI · Last verified July 2026

E Union St Highlights

Properties 10
Median Sale Price $185,000
Deeds and Mortgages on File 9
Median Price per Sqft $132
Owner Occupied 70%
Median Annual Tax Bill $3,401
Median Ownership Tenure 18 years

Properties on E Union St

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

502 E Union St

3 bd · 1 ba · 1,104 sqft · 0.21 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,3192025 —Feb 2000 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

511 E Union St

3 bd · 2 ba · 1,184 sqft · 0.21 acres

Last Sale Tax Bill Prior Sale Owner Records
$115,000Aug 1998 $2,7872025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

517 E Union St

0.21 acres

Last Sale Tax Bill Prior Sale Owner Records
$372,000Jun 2026 $4,0172025 Amount on Record Jan 2013 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

518 E Union St

3 bd · 1 ba · 1,284 sqft · 0.2 acres

Last Sale Tax Bill Prior Sale Owner Records
$185,000Jun 2008 $2,8902025 Amount on Record Jun 1999 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

523 E Union St

2 bd · 1 ba · 884 sqft · 0.21 acres

Last Sale Tax Bill Prior Sale Owner Records
$114,000Jun 1998 $2,2542025 —Mar 2003 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

526 E Union St

4 bd · 1 ba · 1,362 sqft · 0.2 acres

Last Sale Tax Bill Prior Sale Owner Records
$173,000Jul 2006 $3,4012025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

531 E Union St

2 bd · 1 ba · 1,020 sqft · 0.21 acres

Last Sale Tax Bill Prior Sale Owner Records
$134,900Jul 2001 $2,5772025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

601 E Union St

6 bd · 4 ba · 1,997 sqft · 0.21 acres

Last Sale Tax Bill Prior Sale Owner Records
$271,000Jul 2019 $4,3852025 Amount on Record May 2004 2 Names on Record Assessor + 1 DocumentUpdated Jul 2026

602 E Union St

0.2 acres

Last Sale Tax Bill Prior Sale Owner Records
$332,500Apr 2022 $4,9582025 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

608 E Union St

4 bd · 2 ba · 1,850 sqft · 0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$90,000Apr 2014 $4,1302025 Amount on Record Jun 1998 1 Name on Record AssessorUpdated Jul 2026

Wildfire Risk on E Union St

Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach

Property Records in Nearby Streets