Blog · October 14, 2026 · Illinois
Using the Troy GIS Map
Most property questions near Maryville start with a parcel lookup.
Main page: Madison County, IL GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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When land near Maryville catches your eye, the Troy GIS map lays out parcel boundaries plus basic tax data. What this Troy guide covers: which viewer to open, how to search it, and what to double-check with records.
Where the Troy GIS map lives
For a tract near Pontoon Beach, some cities also run their own GIS portal for utilities or zoning; that can add detail on top of the county map.
The viewer Madison County publishes
Your first stop is the Madison County parcel viewer; it covers each tax parcel from Glen Carbon to Pontoon Beach. For a home near Marine, put in a street address, an owner's name or a parcel number, and the matching parcel lights up. For land near Marine, the parcel card typically gives the owner of record, acreage on the tax roll, a parcel ID and often a sale date.
Troy and the county around it
Troy lies within Madison County, Illinois, so its parcels are on the county's map. For property near Maryville, the municipality handles things like zoning, permits and utilities within town limits, and the county still keeps the parcel and deed records. Acreage past the city limits out by Pontoon Beach generally follows county rules, not municipal ones.
How land is described here
Illinois uses the Public Land Survey System, which means a tract near St. Jacob is described by section, township and range. Each section is nominally a mile square, about 640 acres, and a township holds 36 of them, though corrections make some sections near Maryville odd-sized. Write down the legal description for the tract near St. Jacob before you request a deed or survey.
Recorded documents worth pulling
For anything that matters, request the recorded deed from the county Recorder of Deeds (in many counties the County Clerk and Recorder); the parcel map near St. Jacob only summarizes it. Inherited tracts around St. Jacob can go back through a long string of deeds, and a title company earns its fee before a purchase.
Before you lean on the lines
Acreage on the record is an assessed number; only a licensed surveyor can set the real corners on land around Glen Carbon. Owner names and values update on a schedule, so a fresh transfer around Pontoon Beach might lag behind.
Finding the right lot
Vacant ground near Pontoon Beach may lack an address, which means panning to it and clicking. For land near Marine, searching by parcel number never misses, and it carries over to every office in the county.
Printing and saving
Save a screenshot of the lot near St. Jacob and its record panel, so you have it when calling an office.
Aerials, labels and overlays
In and around Maryville, layer lists often include municipal boundaries, floodplain and sometimes zoning; availability varies.
Which office to call
Questions about value or the owner field for land near Pontoon Beach are handled by the Supervisor of Assessments, working with township assessors, which maintains the tax roll. Questions about what you can build around Marine are for the local planning and health departments, town or county, depending on location.
Troubleshooting the viewer
If the viewer stalls on a phone near St. Jacob, try a desktop browser or clear the cache; links occasionally change, and our directory page keeps the current one.
Neighboring parcel maps
Madison County borders Bond County, Clinton County, Jersey County, Macoupin County, and Montgomery County; every one of them runs a separate parcel map. Acreage along the edge near Maryville may show up across two assessors' files, so open the neighboring map before you assume the acreage. For acreage around Maryville, our state page links each bordering county map across Illinois.
Madison County in a few facts
Edwardsville serves as the county seat, where most land records are kept. Other places on the map include Maryville, Glen Carbon, Marine, and St. Jacob, where town lots give way to larger tracts. Around 262,752 people live in Madison County (Census Bureau estimate, 2023) spread over some 716 square miles. Madison County dates to 1812, and some chains of title near Glen Carbon are long. Features like Mississippi River and Horseshoe Lake help you orient on the aerial around Edwardsville.
Owner, value and acreage
The record for a parcel near Pontoon Beach typically lists the owner of record, values and a legal description.
Taking the map into the field
Most viewers work in a phone browser, which helps when you're standing on land near St. Jacob, so load it before you lose signal. A printout of the tract near Pontoon Beach helps when you meet an owner or agent.
Frequently asked
How do I find who owns a lot near Maryville?
Good question; the parcel record for a lot near St. Jacob lists the owner of record.
How often is the parcel map updated around Glen Carbon?
Generally, updates come in batches.
Can I see aerial photos on the map near Edwardsville?
If you're looking near St. Jacob, many viewers offer aerial imagery plus layers like city limits, zoning or flood zones; open the layer list to see what's there.
Do I need an account for the parcel map near Pontoon Beach?
The county viewer covering Troy needs no account; some sites ask you to accept a disclaimer.
How do I save a parcel from the viewer near Pontoon Beach?
Some viewers offer PDF export; include the record panel for the lot near Marine.
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.