Blog · October 14, 2026 · Illinois
Troy Plat Map: finding the recorded plat
A recorded plat shows how land near Maryville 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 deed near Maryville says lot and block, the Troy plat map is where those numbers come from. Covered here for Troy: where plats are filed, how a plat differs from a parcel map, and the details that matter to buyers.
Tracking down the Troy plat map
For a subdivision near Edwardsville, the deed usually cites the plat; that makes the request quick.
Pulling up a parcel
Begin with the Madison County parcel viewer; it includes each tax parcel in the county, Pontoon Beach included. For land near Glen Carbon, put in a street address, an owner's name or a parcel number, and the viewer zooms to the match. If the land is near Edwardsville, the parcel card usually lists the owner of record, assessed acreage, the parcel number and sometimes recent sales.
Who handles what
Recorded documents for a parcel near Marine are with the county Recorder of Deeds (in many counties the County Clerk and Recorder), sometimes only in person. Zoning, permits and septic questions near Marine go to planning, building or health offices, town or county, depending on location.
Getting your bearings
Edwardsville serves as the county seat, where most land records are kept. You'll also find Maryville, Glen Carbon, Marine, and St. Jacob, each with its own cluster of lots. Around 262,752 people live in Madison County (Census estimate, 2023) across roughly 716 square miles. Madison County was organized in 1812, and some chains of title near Edwardsville are long. Features like Mississippi River and Horseshoe Lake make handy reference points on the map near St. Jacob.
City limits and county records
Troy sits in Madison County, Illinois, which means parcel data comes from the county. If the land is near Marine, city or town hall handles matters such as zoning, permits and utilities inside its limits, and the county still keeps the parcel and deed records. Acreage past the town limits near Marine often follows county rules instead.
Where the recorded documents are
For anything that matters, request the recorded deed through the county Recorder of Deeds (in many counties the County Clerk and Recorder); the viewer just points to it. Around Marine, bring the instrument number shown in the record panel so staff can find the deed fast.
Using it on a phone
Most viewers work in a phone browser, handy when you're parked on a road near Pontoon Beach, though signal can drop in rural spots. A printout of the tract near St. Jacob helps when you meet an owner or agent.
What the map can't tell you
The acreage figure is a tax-roll number; only a licensed surveyor establishes the real boundary for a parcel near Glen Carbon. For property near Pontoon Beach, owner names and values update on a schedule, so a deed recorded last month might lag behind.
Plat map vs. parcel map
If the tax map and plat differ near Pontoon Beach, the recorded plat and a survey control.
Lots, blocks and easements
For a tract near Glen Carbon, the sheet usually includes lot and block numbers, dimensions and bearings, street rights-of-way and easements.
Next door to Madison County
Madison County borders Bond County, Clinton County, Jersey County, Macoupin County, and Montgomery County, and each of those keeps its own parcel map. Acreage along the edge near Glen Carbon may be split across two assessors' files, so check the neighboring map as well. Near Marine, our state page lists each neighboring county map for Illinois.
How land is described here
Illinois uses the Public Land Survey System, which means a tract near Marine is described by section, township and range. Each section is nominally a mile square, about 640 acres, with 36 sections to a township, though real sections near Glen Carbon vary in size. Keep the legal description for land near Pontoon Beach when you talk to a surveyor.
Land outside a subdivision
Acreage around St. Jacob outside a subdivision may have no plat at all; the deed and any recorded survey describe it instead.
When a plat changes
An amended plat may change lots around Glen Carbon, so check for later filings; street vacations near Marine show up in the records too.
Requesting the plat
For acreage around Glen Carbon, many recorder offices offer an online index, while others require a visit or a request; small fees are common.
Questions about the Troy plat map
Who has recorded plats for land near Pontoon Beach?
It depends, but recorded plats near Edwardsville are filed with the county Recorder of Deeds (in many counties the County Clerk and Recorder); use the plat reference from the deed or parcel record.
Are old plats online around Marine?
For acreage around Edwardsville, it varies; some offices have scanned older plats and some haven't; call before you visit.
Can lots near Glen Carbon be combined?
Short answer: combining or splitting lots near Pontoon Beach usually needs a recorded plat change.
Is a plat map a survey in Troy?
Closer to Pontoon Beach, a recorded plat is based on a survey, but the GIS map is not; trust the plat when they differ.
Where is the legal description for land near Marine?
Out toward Glen Carbon, Deeds use lot and block, metes and bounds or survey descriptions, and the parcel record often summarizes it.
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.