Blog · October 14, 2026 · Texas
The Irion County Plat Book and the online parcel map
If the land is near Mertzon, plat books show ownership by township; the parcel viewer shows it today.
Main page: Irion County, TX GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Looking for an Irion County plat book? It's a printed atlas of landownership, usually by township, useful for farms near Mertzon. In this Irion County guide: what's in a plat book, where to look for printed copies, and how the county viewer fills the gaps.
Getting started with the Irion County plat book
If you're looking near Barnhart, plat books are commercial atlases, that map ownership across the countryside, page by page across the county.
Pulling up a parcel
Go first to the Irion County parcel viewer; it maps every assessed parcel from Sherwood to Barnhart. For acreage around Sherwood, put in a street address, an owner's name or a parcel number, then pick the result to center the map on it. For a parcel near Mertzon, the parcel card typically gives the owner of record, assessed acreage, a parcel ID and often a sale date.
Places you'll see on the map
Mertzon is the county seat, where most land records are kept. You'll also find Barnhart and Sherwood, where town lots give way to larger tracts. About 1,549 people live in Irion County (Census Bureau estimate, 2023) spread over some 1,052 square miles. The county dates to 1889, and some chains of title near Sherwood are long.
Before you lean on the lines
In and around Barnhart, acreage on the record is a tax-roll number; just a licensed surveyor can set the real corners on the ground. If the land is near Barnhart, owner names and values update on a schedule, so a deed recorded last month might lag behind.
Where the recorded documents are
When the details count, request the recorded deed from the County Clerk; the viewer just points to it, which applies near Sherwood as much as anywhere. For a parcel near Sherwood, have ready the document number shown in the record panel to skip a name search.
Printing your own
Print parcel views near Mertzon township by township and keep them in a binder for the truck.
Land on the county line
Irion County meets Crockett County, Reagan County, Schleicher County, and Tom Green County, and each of those keeps its own parcel map. A tract near the line by Sherwood can show up in two county records, so look at the adjacent map too. For a tract near Sherwood, our state page lists every bordering county map for Texas.
Why people still buy them
Buyers and seed dealers around Mertzon rely on them for a big-picture view of who owns what.
Using it on a phone
Most viewers work in a phone browser, useful out on a road near Sherwood, but coverage can be spotty out of town. A screenshot of the parcel near Sherwood with its ID is a good backup.
Finding a printed edition
Not every county has a current edition, so ask at the courthouse, extension office or a local library near Sherwood.
Current ownership online
The Irion County parcel viewer is updated more often than any atlas, for tracts near Mertzon.
Reading the legal description
Tracts outside towns near Barnhart are often described by metes and bounds, listing bearings, distances and landmarks. Subdivision lots in Mertzon are typically described by lot and block, which is simpler to follow. Keep the legal description for land near Sherwood when you talk to a surveyor.
Which office to call
For assessment questions about property around Sherwood are handled by the appraisal district, since that office keeps the assessment data. Building or septic questions for a lot near Mertzon are for the local planning and health departments, depending on whether the land is inside town limits.
Plat book vs. recorded plat
For property near Barnhart, a plat book is not a recorded plat: the recorded plat at the County Clerk is a legal document, while the atlas is a reference.
Questions about the Irion County plat book
Why does the plat book differ from the deed in Irion County?
In and around Barnhart, plat book acreage and lines are approximate.
Plat book or parcel viewer for land near Sherwood?
Short answer: the viewer covers town lots near Sherwood too; a printed atlas is still handy offline.
Is a plat book legal proof for land near Barnhart?
On ground around Sherwood, a plat book is a privately published atlas.
Are old plat books online near Mertzon?
For a home near Mertzon, some older atlases have been digitized.
Why do offices ask for the parcel ID around Barnhart?
It's the number the appraisal district uses to track a tract near Mertzon; you'll see it in the viewer and on tax statements.
Where can I buy a plat book for land near Barnhart?
With a lot near Sherwood, editions come and go; ask local offices.
Open the official Irion County, TX 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.