Blog · October 14, 2026 · Illinois
Using the Bethalto GIS Map
Parcel data for Bethalto comes from the county, and the viewer is free.
Main page: Madison County, IL GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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For any lot around East Alton, a look at the Bethalto GIS map gives you parcel boundaries plus basic tax data. What this Bethalto guide covers: which viewer to open, the fastest ways to search, and what to double-check with records.
The official viewer behind the Bethalto GIS map
Parcel maps here are usually run by the county, not the town, and for Bethalto that means the Madison County parcel viewer.
Pulling up a parcel
The public parcel map for this area is the Madison County parcel viewer, and it opens in a browser with no account. For property near East Alton, put in a street address, an owner's name or a parcel number, and the matching parcel lights up. Near Wood River, the record panel usually lists the owner of record, acreage on the tax roll, the parcel number and in many cases the last transfer.
City limits and county records
Bethalto is part of Madison County, Illinois, and the county assessor maps its lots. Near Alton, city or town hall handles things like zoning, permits and utilities for lots inside the boundary, and the county still keeps the parcel and deed records. Acreage past the town limits toward Roxana usually falls under county rules rather than the town's.
Search tips
Vacant ground near South Roxana may lack an address, so pan the aerial and click the lot. In and around Hartford, searching by parcel number never misses, and it carries over to every office in the county.
What the map can't tell you
Tax maps are drawn for assessment, not surveyed, so the edge of a yard near Alton can sit several feet off the line on screen. For acreage around Alton, records update in batches, so a deed recorded last month can take weeks to appear.
When the map won't load
When the map won't open around Alton, switch browsers or turn off pop-up blockers; the Platbookmapper county page tracks the current link.
Recorded documents worth pulling
The map is an index, not the title: recorded deeds, plats and easements for land near South Roxana are kept by the county Recorder of Deeds (in many counties the County Clerk and Recorder). Long-held tracts near Wood River may trace back through a long string of deeds, so a title company earns its fee on a real sale.
Who handles what
If the acreage or value on a parcel near South Roxana looks off are handled by the Supervisor of Assessments, working with township assessors, which maintains the tax roll. Building or septic questions for a lot near Alton are for the local planning and health departments, town or county, depending on location.
A quick look at the area
Edwardsville holds the county offices, home to the main records offices. You'll also find Wood River, East Alton, Roxana, and Alton, each with its own cluster of lots. Around 262,752 people live in Madison County (Census estimate, 2023) spread over roughly 716 square miles. Madison County was organized in 1812, and some chains of title near Roxana are long. Places such as Mississippi River and Horseshoe Lake are easy to spot when you zoom out from Wood River.
What the layers show
For a home near Alton, look in the layer list for city limits, flood hazard, zoning or soils; availability varies.
Legal descriptions in Illinois
Illinois follows the Public Land Survey System, so rural legal descriptions near South Roxana cite section, township and range. A standard section is about one square mile, roughly 640 acres, and a township holds 36 of them, though sections near Alton can be irregular. Keep the legal description for land near Wood River before you request a deed or survey.
Owner, value and acreage
Recent sales on nearby lots around South Roxana are a useful starting point; an appraiser is the real authority.
When a parcel crosses a boundary
Madison County meets Bond County, Clinton County, Jersey County, Macoupin County, and Montgomery County; every one of them runs a separate parcel map. A tract near the line by Roxana may be split in two county records, so open the neighboring map before you assume the acreage. For a home near Roxana, our state page links each bordering county map across Illinois.
Keeping a record
Print or screenshot the parcel near Hartford with its ID visible, which helps later when you ask the assessor or a title company.
Bethalto: common questions
Can I look up a property owner on the map near Wood River?
Short answer: click the lot near Wood River to see the owner; try variations if nothing comes up.
Are parcel lines on the map exact in Bethalto?
For most people, the map near Wood River isn't a survey; get a survey before a fence.
What layers does the parcel viewer have for land near Wood River?
For a parcel near Hartford, many viewers offer aerial imagery plus layers like city limits, zoning or flood zones; open the layer list to see what's there.
How often is the parcel map updated for land near Roxana?
Short answer: owner data near South Roxana can lag new deeds by weeks.
Is there an app for the parcel map near Alton?
For acreage around Roxana, most viewers run in a mobile browser; screenshots help offline.
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.