Blog · October 14, 2026 · Illinois
Maryville Plat Map, Illinois: plats and lots
A recorded plat shows how land near Troy was divided into lots.
Main page: Madison County, IL GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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When a listing near Edwardsville mentions a lot number, the Maryville plat map is where those numbers come from. Covered here for Maryville: where to request a copy, how a plat differs from a parcel map, and the details that matter to buyers.
Tracking down the Maryville plat map
For a lot in Maryville, the deed usually cites the plat; bring that to the recorder's office or its online index.
Opening the official parcel viewer
Your first stop is the Madison County parcel viewer; it includes each tax parcel from Troy to Edwardsville. When a rural tract has no street number, zoom in from Edwardsville until the lines appear, then click inside the one you want. In and around Edwardsville, the record panel normally shows the owner of record, acreage on the tax roll, a parcel ID and sometimes recent sales.
Places you'll see on the map
Edwardsville is the county seat, home to the main records offices. Smaller places on the map include Glen Carbon, Troy, and Pontoon Beach. Roughly 262,752 people call Madison County home (Census Bureau estimate, 2023) spread over about 716 square miles. Madison County was formed in 1812, which matters when you trace an old farm's title. Places such as Mississippi River and Horseshoe Lake help you orient on the aerial around Glen Carbon.
Where Maryville fits in
Maryville is part of Madison County, Illinois, which means parcel data comes from the county. Closer to Pontoon Beach, city or town hall handles matters such as zoning, permits and utilities inside its limits, while the county keeps the tax map. Land beyond the city limits near South Roxana generally follows county rules instead.
Two different maps
When the two disagree for a lot near South Roxana, trust the recorded documents over the GIS layer.
What the map can't tell you
Acreage on the record is a tax-roll number; just a licensed surveyor establishes the real boundary for a parcel near Pontoon Beach. Owner names and values update on a schedule, so a fresh transfer around Edwardsville may not show yet.
When a parcel crosses a boundary
Madison County touches Bond County, Clinton County, Jersey County, Macoupin County, and Montgomery County, and each of those keeps its own parcel map. Ground near South Roxana that runs to the line can show up in two county records, so check the adjacent map as well. With a lot near Roxana, our state page lists each neighboring county map across Illinois.
Recorded documents worth pulling
For anything that matters, pull the recorded deed through the county Recorder of Deeds (in many counties the County Clerk and Recorder); the parcel map near Edwardsville only summarizes it. Long-held tracts near Edwardsville may sit on several deeds, and a title company is worth hiring if money is changing hands.
When a plat changes
An amended plat may change lots around Troy, so check for later filings; street vacations near Glen Carbon show up in the records too.
Who handles what
Recorded documents for a parcel near Troy come from the county Recorder of Deeds (in many counties the County Clerk and Recorder), often with an online index. Zoning, permits and septic questions near Glen Carbon go to planning, building or health offices, and the answer depends on jurisdiction.
Lots, blocks and easements
Recorded easements around Glen Carbon stay with the land when it sells; read the notes on the sheet.
Reading the legal description
Illinois is laid out under the Public Land Survey System, so deeds around Troy reference sections and townships. Each section is nominally a mile square, about 640 acres, and a township holds 36 of them, though corrections make some sections near Glen Carbon odd-sized. Write down the legal description for the tract near Edwardsville for any title or survey request.
Land outside a subdivision
Acreage around Glen Carbon outside a subdivision may have no plat at all; look for a recorded survey for land near Troy.
Field tips
Most viewers work in a phone browser, handy when you're parked on a road near Roxana, though signal can drop in rural spots. A saved image of the lot near Troy and its lines keeps working without signal.
Requesting the plat
For a home near Edwardsville, many recorder offices offer an online index, otherwise call or visit with the reference; copy fees are usually small.
Maryville: common questions
Are old plats online in Maryville?
Generally, older plats near South Roxana may be on film or paper; call before you visit.
What is a lot and block description in Maryville?
For property near Troy, the description sends you to a specific recorded plat, so pull that plat for dimensions.
Is a plat map a survey for land near Troy?
If the land is near Edwardsville, a recorded plat is based on a survey, but the GIS map is not; a surveyor ties it to the ground.
Where can I find the Maryville plat map?
Short answer: copies come from the county Recorder of Deeds (in many counties the County Clerk and Recorder), often through an online index.
Where do I find the parcel number for land near Roxana?
It's the number the Supervisor of Assessments, working with township assessors uses to track a tract near South Roxana; copy it before you call anyone.
Open the official Madison County, IL 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.