320 E Jefferson St, Oconomowoc, WI 53066 Property Records

Waukesha County property record for 320 E Jefferson St, Oconomowoc, WI 53066

Property Summary

Property Type	Single Family Home
Details	2 bd · 1 ba · 1,274 sqft
Lot Size	0.15 acres (6,534 sqft)
Owner	Company Name on Record
Last Sale	$130,000 (Apr 1998)
Tax Bill	$3,825 (2025)
Flood Zone	Zone X (minimal risk)
APN	`OCOC-0590-111`

Property Details

APN / Parcel Number

Primary APN	`OCOC-0590-111`

Exterior

Lot Area	6,534 sqft (0.15 acres)

Location & Zoning

Street Address	320 E JEFFERSON ST
City	OCONOMOWOC
State	WI
Zip	53066-3709
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	W 62 FT E 124 FT OF S 108 FT OF LOT 16 WESTOVERS PLAT THE SUMMIT ADDITION TO THE VILLAGE OF OCONOMOWOC PT NW1/4 SEC 4 T7N R17E DOC# 4062106
Legal Range	17E
Legal Township	7N
Legal Section	04
Legal Subdivision	WESTOVERS PLAT THE SUMMIT ADDITION TO TH
Legal Lot Number	16
Jurisdiction	WAUKESHA WI
Township / Civil Division	OCONOMOWOC
Census Block Group	3
Census Block	3002
Census Tract	204302

Owner

Source: Waukesha County records, as of June 23, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	Company Name on Record
Mailing Address	320 E JEFFERSON ST, OCONOMOWOC, WI 53066-3709
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Revocable Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Apr 6, 1998 · Amount on Record
Deed Sale	Apr 6, 1998 · Amount on Record
Prior Sale	Sep 9, 1996 · Amount on Record
Deed Document Number	19982305009
Deed Book / Page	2632 / 774
Last Transfer Date	Jan 3, 2014
Transfer Doc	0004062106
Record Updated	Sep 20, 2026

Tax Assessment & Valuation

Source: Waukesha County assessment roll, as of June 23, 2026

Property Jurisdictions

Type	Name
State	Wisconsin
County	Waukesha County
Municipality	Oconomowoc City
Unified School District	Oconomowoc Area School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$3,825.00 (+13.77%)	$369,200 (+22.37%) Land $50,300 Building $318,900	$374,600 (+18.96%)
2023	$3,362.00 Homeowner's exemption	$301,700 Land $50,300 Building $251,400	$314,900

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

Source: FEMA National Flood Hazard Layer, effective October 19, 2025

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

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

Wildfire Risk	Low lower than 98% of the US · lower than 94% of Wisconsin
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	OCONOMOWOC WATERWORKS serves 15,805 people · EPA ID WI2680227
Water Source	Groundwater
Last State Inspection	Apr 2025
Lead	7 ppb (2023) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes. The service area is an EPA estimate; the actual supplier may differ.

Internet Providers

Source: FCC Broadband Data Collection, based on 421 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Spectrum Cable · Fiber in parts of the area	1,000 / 50
Verizon Fixed Wireless	300 / 20
Bertram Communications Fixed Wireless	100 / 20
AT&T DSL · Fiber in parts of the area	100 / 20