Blog · October 14, 2026 · Illinois
Marion County Township Map, Illinois
Civil and survey townships in Marion County, with the free map, starting near Central City.
Main page: Marion County, IL GIS & Parcel Viewer (official map link, Marion County facts and neighboring maps).
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A Marion County township map search near Salem frequently starts with a tax bill or a deed that names a township. The free Marion County parcel viewer and the parcel record generally display both.
How to use the Marion County township map
A township name on a county tax record refers to the civil township where the land near Salem sits. Rural land in Marion County follows the federal survey grid, where a survey township is about 6 miles square, split into 36 sections of about 640 acres.
Search Marion County parcels by owner, address or ID
Marion County publishes its parcels on the Marion County ArcGIS parcel map, which runs on an Esri ArcGIS web map, free to use for a lot in Central City or a property near Alma. Click any Marion County parcel near Central City to open its record: owner, parcel ID and assessed acreage are generally listed. Our Marion County, IL page keeps the official link and the maps next door to Alma in one place.
How to look up a township in Marion County
The Marion County ArcGIS parcel map is the quickest Marion County township map for most people: switch on boundaries and click a parcel near Tonti. Some Marion County viewers include a PLSS layer that labels sections, which is useful when a deed near Salem cites T and R numbers.
How the survey grid is numbered
For land around Salem, section 1 sits in the northeast corner of a survey township, and the numbering ends at 36 in the southeast corner. Calls like 'NE 1/4 of the SW 1/4' near Kinmundy read backward: locate the southwest quarter, then its northeast quarter, on the county grid. Correction lines and irregular sections exist, so a section near Salem may not be exactly 640 acres.
Deeds, districts and roads
If a county deed near Tonti cites a township that no longer appears on the map, the county recorder can generally explain the change. Election maps, school districts and fire districts in Marion County do not always follow township lines near Wamac, so check each one separately.
The Marion County economy in brief
Marion County's 2022 business count was 853 establishments, with retail trade, other services, and health care and social assistance the largest groups. Pipeline transportation and oil and gas extraction make up an above-average share of Marion County businesses, a clue to how land around Central City gets used.
From Salem to the back roads
From Salem, the seat of the county, the map spreads out to Centralia, Kinmundy, Wamac, and Alma. Smaller places such as Greendale and Tonti appear on the county map as little clusters of lots. Marion County had an estimated 36,673 people in 2023 (Census Bureau), spread across about 573 square miles. The Marion County map mixes subdivision lots near Salem with farm and wooded tracts farther out. With a founding date of 1823, Marion County has long chains of title on some rural tracts.
Tracts that cross the Marion County line
Marion County borders Clay County, Clinton County, Fayette County, Jefferson County, and Washington County, and each keeps its own parcel map and records. Every map bordering Marion County is listed on our Illinois directory.
Why the township matters
Township lines near Salem can matter more than the mailing town, and the county record is the better guide than an address. Buyers looking near Salem sometimes track down the township office is the place to ask about local road plans and ordinances.
Marion County, IL: common questions
Does the Marion County GIS map display township lines?
Many county viewers include a township or municipal boundary layer; check the layer list on the Marion County map.
Which township is my house near Centralia in?
Click the parcel on the Marion County ArcGIS parcel map; the Marion County record generally names the township.
What do township and range mean on a deed near Centralia?
They locate land near Centralia on the federal survey grid; each survey township holds 36 sections of about 640 acres.
Why is my mailing address in Centralia but my township different?
Postal service areas around Centralia cross township lines, so the two frequently differ.
How big is a quarter section near Iuka?
A standard section is about 640 acres, so a quarter section near Iuka is about 160, though corrections make some smaller.
Open the official Marion County, IL parcel map Marion County 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.