WISCONSIN COUNTY PARCEL MAPS

Waukesha County parcel map and property owners

By GoGIS · 2025 tax roll, V12 statewide parcels · Updated October 31, 2026

WI 2026 puts all 164,715 parcels in Waukesha County on your phone: owner names, site addresses, assessed values and acreage from the county’s 2025 tax roll. The county download is about 70 MB, and once it’s on your phone you can search it and tap any parcel with no signal.

The parcels cover 452,017 mapped acres across 39 towns, villages and cities, and 22 school districts. The most parcels are in the City of Waukesha. The data is the State Cartographer’s Office V12 statewide parcel map, loaded from the county on March 10, 2026.

Map of every parcel in Waukesha County, Wisconsin, colored by tax class — Every parcel in Waukesha County, colored by the tax roll’s class of property. Drawn from the same V12 data WI 2026 downloads.

What the Waukesha County records include

Counties fill in the statewide schema differently. This is how complete Waukesha County’s 2025 records are:

Waukesha County parcel records with each field filled in
Field	Filled in
Owner name	98.8% of parcels
Site (street) address	92.6% of parcels
Assessed or estimated value	94.1% of parcels
Assessed or deeded acres	89.4% of parcels
Net property tax	94.1% of parcels

How the land is classed

By mapped area, Waukesha County is residential 60%, government-owned / county forest 14%, agricultural 14%, commercial / manufacturing 9%. The median estimated fair market value of a residential parcel is $443,500, across 141,877 residential parcels with a value.

In WI 2026, open the legend and color the map by Class of Property to see the same picture, or by Estimated Fair Market Value to see where values rise and fall.

Deer season: public land and Managed Forest Law

The tax roll marks parcels that are government-owned or enrolled in Wisconsin’s forest tax programs. In Waukesha County:

Federal-owned: 29 acres in 6 parcels
State-owned: 21,119 acres in 453 parcels
County-owned: 9,286 acres in 413 parcels
No parcels are listed as open Managed Forest Law land.
Managed Forest Law, closed (no public access without permission): 2,125 acres

In WI 2026, color the map by Auxiliary Class of Property to see these parcels, and tap one for the owner and acreage. The acreages are whole-parcel areas from the tax roll: a parcel that is only partly enrolled counts in full, and the tax roll doesn’t show posted areas or access routes. Before you hunt, check the DNR’s map of private forest land open to the public and the signs on the ground.

Towns, villages and cities in Waukesha County

Every parcel carries its municipality, so you can search a town name in WI 2026 or filter the attribute table to one place. Parcel counts in the 2025 data:

City of Waukesha 22,886
City of New Berlin 15,643
City of Brookfield 15,480
Village of Menomonee Falls 15,471
City of Muskego 10,007
City of Oconomowoc 7,777
City of Pewaukee 7,029
Town of Oconomowoc 4,609
Town of Libson 4,572
Village of Sussex 4,393
Town of Merton 4,027
Town of Waukesha 3,708
Town of Delafield 3,638
Town of Vernon 3,419
Village of Hartland 3,349
Town of Mukwonago 3,334
Town of Genesee 3,268
Village of Mukwonago 3,233
Village of Pewaukee 3,151
City of Delafield 3,092
Town of Summit 2,764
Village of Elm Grove 2,627
Town of Brookfield 2,347
Town of Eagle 1,888
Town of Ottawa 1,870
Village of Merton 1,349
Village of Wales 1,111
Village of Dousman 963
Village of North Prairie 909
Village of Eagle 883
Village of Big Bend 845
Village of Butler 827
Village of Lannon 808
Village of Nashotah 585
Village of Chenequa 405
Village of Oconomowoc Lake 364
Village of Laclabelle 185
Village of Vernon 1
Village of Lac la Belle 1

Working near the county line?

Waukesha County borders Dodge County, Jefferson County, Milwaukee County, Ozaukee County, Racine County, Walworth County and Washington County. Download the neighboring counties too, and WI 2026 searches across all of them at once.

Where the data comes from

Parcel data is the Wisconsin Statewide Parcel Map Database (V12), a public-domain product of the Wisconsin Land Information Program and the State Cartographer’s Office, UW–Madison, built from Waukesha County’s 2025 tax roll. It is a snapshot, not a live feed: for a sale, a survey or a tax question, check with Waukesha County directly.