Blog · October 14, 2026 · Illinois
The Alexander County Plat Book and the online parcel map
For a parcel near Cairo, plat books show ownership by township; the parcel viewer shows it today.
Main page: Alexander County, IL GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Looking for an Alexander County plat book? It's a printed atlas of landownership, usually by township, useful for farms near Cairo. This Alexander County guide covers: what's in a plat book, where to look for printed copies, and the free online map that stays current.
The Alexander County plat book: start here
With a lot near Cache, plat books are commercial atlases, that map ownership across the countryside, usually township by township.
Pulling up a parcel
The official parcel map for this area is the Alexander County ArcGIS parcel map, and it opens in a browser with no account. Near Cypress Creek National Wildlife Refuge, type 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 Diswood, copy the parcel ID while you have it open; each office in the county asks for it first.
Common uses
Buyers and seed dealers around Cache rely on them to see ownership across many tracts at once.
Finding a printed edition
Editions come and go depending on publishers, try the county extension office, recorder's office or library near Cypress Creek National Wildlife Refuge.
Current ownership online
Between printed editions, the Alexander County ArcGIS parcel map shows current owners, including rural land around Fayville.
Deeds, plats and who keeps them
The map is an index, not the title: deeds, subdivision plats and easements for land near Cache are filed with the county Recorder of Deeds (in many counties the County Clerk and Recorder). For a home near Cypress Creek National Wildlife Refuge, use the document number shown in the record panel so staff can find the deed fast.
Who handles what
If the acreage or value on a parcel near Cache looks off belong with the Supervisor of Assessments, working with township assessors, which maintains the tax roll. Questions about what you can build around Diswood go to planning, building or health offices, town or county, depending on location.
Getting your bearings
Cairo serves as the county seat, which is where the courthouse records live. You'll also find Cache, Diswood, Elco, and Fayville. Roughly 4,695 people live in Alexander County (Census estimate, 2023) across about 235 square miles. The county was formed in 1819, and some chains of title near Mississippi River are long. Places such as Mississippi River and Cypress Creek National Wildlife Refuge are easy to spot when you zoom out.
A homemade atlas
Screenshot each section of the viewer around Elco and keep them in a binder for the truck.
Neighboring parcel maps
Alexander County borders Pulaski County, Union County, Ballard County, KY, Cape Girardeau County, MO, and Mississippi County, MO; every one of them runs a separate parcel map. A tract near the line by Elco may be split across two assessors' files, so look at the adjacent map too. For a parcel near Mississippi River, our state page links each bordering county map for Illinois.
How land is described here
Illinois uses the Public Land Survey System, which means a tract near Future City is described by section, township and range. Each section is nominally a mile square, about 640 acres, with 36 sections to a township, though sections near Cypress Creek National Wildlife Refuge can be irregular. Write down the legal description for the tract near Cypress Creek National Wildlife Refuge for any title or survey request.
Limits of the parcel data
On ground around Fayville, acreage on the record is an assessed number; only a licensed surveyor establishes the real boundary on the ground. For acreage around Cache, records update in batches, so a deed recorded last month can take weeks to appear.
Using it on a phone
The parcel map usually runs in a mobile browser, handy when you're parked on a road near Fayville, though signal can drop in rural spots. A printout of the tract near Cache is a good backup.
Two kinds of plat
A plat book is not a recorded plat: recorded plats near Diswood are filed with the county Recorder of Deeds (in many counties the County Clerk and Recorder), and the atlas is just a guide.
Frequently asked
How accurate are plat book acreages near Shawnee National Forest?
Out toward Cache, the deed and a survey decide; don't rely on them for boundaries.
Plat book or parcel viewer around Cypress Creek National Wildlife Refuge?
Short answer: the Alexander County ArcGIS parcel map is free and updated more often.
Are old plat books online for land near Cache?
Out toward Cypress Creek National Wildlife Refuge, libraries and historical societies hold older editions; call ahead.
Is a plat book legal proof near Diswood?
For acreage around Fayville, a survey sets boundaries, not an atlas; use a surveyor for lines.
How is land described in Illinois deeds around Fayville?
If you're looking near Diswood, Deeds use lot and block, metes and bounds or survey descriptions; a surveyor can interpret it.
Open the official Alexander 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.