Blog · October 14, 2026 · Wisconsin
Reading the St. Francis Plat Map for a lot
Lots in St. Francis trace back to recorded plats filed with the county.
Main page: Milwaukee County, WI GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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When a listing near Cudahy mentions a lot number, you'll need the St. Francis plat map to make sense of it. What this St. Francis guide covers: where to request a copy, plat versus tax map, and the details that matter to buyers.
The St. Francis plat map: start here
For a subdivision near Cudahy, look for the plat book reference on the parcel record; bring that to the recorder's office or its online index.
The viewer Milwaukee County publishes
Begin with the Milwaukee County parcel viewer; it covers each tax parcel from Oak Creek to West Milwaukee. On ground around West Milwaukee, put in a street address, an owner's name or a parcel number, and the viewer zooms to the match. Around West Milwaukee, a pop-up or side panel normally shows the owner of record, acreage on the tax roll, the parcel number and sometimes recent sales.
St. Francis, WI: the basics
St. Francis is part of Milwaukee County, Wisconsin, which means parcel data comes from the county. With a lot near West Allis, city or town hall handles matters such as zoning, permits and utilities within town limits, while the county keeps the tax map. Lots just outside the city limits out by West Milwaukee generally falls under county rules instead.
Getting your bearings
Milwaukee serves as the county seat, where most land records are kept. You'll also find Cudahy, South Milwaukee, West Milwaukee, and Oak Creek, where town lots give way to larger tracts. About 916,205 people call Milwaukee County home (Census estimate, 2023) across roughly 241 square miles. Milwaukee County was organized in 1835, and some chains of title near South Milwaukee are long. Features like Menomonee River and Kinnickinnic River are easy to spot when you zoom out from West Allis.
Before you lean on the lines
Tax maps are drawn for assessment, not measured on the ground, so a fence near South Milwaukee may sit some distance off the line on screen. For land near West Allis, owner names and values update on a schedule, so a deed recorded last month might lag behind.
Which office to call
For assessment questions about property around Greendale are handled by the county real property listing office, since that office keeps the assessment data. Questions about what you can build around Cudahy are for the local planning and health departments, town or county, depending on location.
The paper trail behind a parcel
The map is an index, not the title: recorded deeds, plats and easements covering ground around Cudahy sit with the Register of Deeds. Long-held tracts around South Milwaukee may sit on several deeds, and a title company is worth hiring before a purchase.
When there's no plat
Acreage around Greendale outside a subdivision may have no plat at all; the deed and any recorded survey describe it instead.
Two different maps
Where lines don't match in St. Francis, trust the recorded documents over the GIS layer.
Sections, lots and bearings
Wisconsin uses the Public Land Survey System, so deeds around South Milwaukee reference sections and townships. A standard section is about one square mile, roughly 640 acres, with 36 sections to a township, though sections near South Milwaukee can be irregular. Copy the legal description from the record for the parcel near Greendale for any title or survey request.
Lots, blocks and easements
With a lot near South Milwaukee, the sheet usually includes lot and block numbers, dimensions and bearings, street rights-of-way and easements.
Getting a copy
With a lot near West Allis, many recorder offices offer an online index, otherwise call or visit with the reference; copy fees are usually small.
Field tips
The parcel map usually runs in a mobile browser, which helps when you're standing on land near South Milwaukee, so load it before you lose signal. A screenshot of the parcel near South Milwaukee with its ID helps when you meet an owner or agent.
When a plat changes
An amended plat may change lots around West Milwaukee, so check for later filings; street vacations near Greendale show up in the records too.
When a parcel crosses a boundary
Milwaukee County borders Muskegon County, MI, Ottawa County, MI, Ozaukee County, Racine County, and Washington County, and each of those keeps its own parcel map. A tract near the line by South Milwaukee can be split across two assessors' files, so open the adjacent map as well. With a lot near West Allis, our state page links every neighboring county map across Wisconsin.
St. Francis: common questions
What is a replat around West Allis?
It depends, but combining or splitting lots near Cudahy usually needs a recorded plat change.
What is a lot and block description for land near West Allis?
It points to a spot on the plat for that subdivision near South Milwaukee; the deed names the subdivision.
How is a plat different from the parcel map near South Milwaukee?
Closer to West Allis, a recorded plat is based on a survey, but the GIS map is not.
How do I get a copy of a plat in St. Francis?
Around Greendale, the Register of Deeds keeps recorded plats; use the plat reference from the deed or parcel record.
Where is the legal description for land near Greendale?
If you're looking near Cudahy, Deeds use lot and block, metes and bounds or survey descriptions, and the parcel record often summarizes it.
Open the official Milwaukee County, WI parcel map See it in the Platbookmapper directory
Not a survey. County GIS and tax parcel maps are assessment and planning layers. They are not a substitute for a recorded plat, deed, or licensed survey, especially for fences, setbacks, or boundary disputes.