Blog · October 14, 2026 · Illinois
Glen Carbon Plat Map: finding the recorded plat
A recorded plat shows how land near Roxana 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 Roxana says lot and block, look up the Glen Carbon plat map it refers to. In this Glen Carbon guide: where to request a copy, plat versus tax map, and the details that matter to buyers.
Who keeps the Glen Carbon plat map
For a lot in Glen Carbon, the deed or parcel record often names the subdivision and plat reference; that makes the request quick.
Pulling up a parcel
Your first stop is the Madison County parcel viewer; it covers every tax parcel from Edwardsville to Roxana. In and around Roxana, put in a street address, an owner's name or a parcel number, then pick the result to center the map on it. If the land is near Maryville, a pop-up or side panel typically gives the owner of record, acreage on the tax roll, a parcel ID and often a sale date.
Land outside a subdivision
Rural land near Pontoon Beach that was never subdivided may have no plat at all; the deed and any recorded survey describe it instead.
City limits and county records
Glen Carbon sits in Madison County, Illinois, so its parcels are on the county's map. For a parcel near South Roxana, city or town hall handles things like zoning, permits and utilities within town limits, but the county runs assessment and recording. Lots just outside the city limits toward Maryville usually follows county rules rather than the town's.
Neighboring parcel maps
Madison County borders Bond County, Clinton County, Jersey County, Macoupin County, and Montgomery County, all with their own assessor records. Acreage along the edge near Troy may be split across two assessors' files, so open the neighboring map before you assume the acreage. For a parcel near South Roxana, our state page lists each neighboring county map for Illinois.
Offices that can help
For assessment questions about property around Maryville belong with the Supervisor of Assessments, working with township assessors, which maintains the tax roll. Zoning, permits and septic questions near South Roxana go to planning, building or health offices, town or county, depending on location.
Plat map vs. parcel map
The tax map on the Madison County parcel viewer is a summary, but the recorded plat is what the deed relies on.
Where the recorded documents are
When the details count, pull the recorded deed from the county Recorder of Deeds (in many counties the County Clerk and Recorder); the parcel map near Edwardsville only summarizes it. Long-held tracts around Roxana can go back through several deeds, and a title company earns its fee on a real sale.
On site with the map
The parcel map usually runs in a mobile browser, useful out on a road near South Roxana, so load it before you lose signal. A printout of the tract near Maryville is a good backup.
When a plat changes
An amended plat may change lots around South Roxana, search the index for replats of the same subdivision; vacated streets or alleys also get recorded.
Reading the plat sheet
Utility or drainage strips on a lot in Glen Carbon limit where you can build or fence; check the plat notes and any covenants.
Places you'll see on the map
Edwardsville is the county seat, home to the main records offices. Smaller places on the map include Maryville, Pontoon Beach, and South Roxana, each with its own cluster of lots. About 262,752 people call Madison County home (Census Bureau estimate, 2023) across roughly 716 square miles. Madison County was organized in 1812, and some chains of title near Troy are long. Features like Mississippi River and Horseshoe Lake are easy to spot when you zoom out from Edwardsville.
A word on accuracy
Tax maps are drawn for assessment, not measured on the ground, so the edge of a yard near South Roxana often sits a few yards off the line on screen. Closer to South Roxana, records update in batches, so a deed recorded last month might lag behind.
Requesting the plat
With a lot near South Roxana, many recorder offices offer an online index, otherwise call or visit with the reference; copy fees are usually small.
Glen Carbon: common questions
Can lots near Roxana be combined?
In most cases, lot splits in Glen Carbon go through the planning office.
What is a lot and block description in Glen Carbon?
For a tract near Edwardsville, lot and block refer to a numbered lot within a block on a recorded subdivision plat; the deed names the subdivision.
Is a plat map a survey in Glen Carbon?
For land near Pontoon Beach, a recorded plat is based on a survey, but the GIS map is not; trust the plat when they differ.
Where can I find the Glen Carbon plat map?
Good question; recorded plats near Maryville are filed with the county Recorder of Deeds (in many counties the County Clerk and Recorder); small copy fees are common.
Where do I ask about an assessment near Edwardsville?
The Supervisor of Assessments, working with township assessors handles values and the tax roll, and the county Recorder of Deeds (in many counties the County Clerk and Recorder) keeps deeds; planning offices cover zoning near Troy
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.