Blog · October 14, 2026 · Texas
Tom Green County Plat Book: finding and using one
Out toward Carlsbad, plat books show ownership by township; the parcel viewer shows it today.
Main page: Tom Green County, TX GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Want a copy of the Tom Green County plat book? It's a printed atlas of landownership, usually by township, popular with hunters, farmers and buyers near Twin Buttes Reservoir. This Tom Green County guide covers: what's in a plat book, where to find editions, and the free online map that stays current.
The Tom Green County plat book: start here
With a lot near Harriett, a plat book is a privately published atlas, that map ownership across the countryside, page by page across the county.
The free map to start with
Lots and tracts near Concho River are published on the Tom Green CAD interactive map, a viewer that needs no account. When a rural tract has no street number, pan along US Route 277 and click the parcel itself, whether the land is near Christoval or elsewhere in the county. If the land is near Knickerbocker, save the parcel ID before closing the panel; every records desk in the county will want it.
What the map can't tell you
The acreage figure is a tax-roll number; only a licensed surveyor sets the real lines on land around San Angelo. Closer to Twin Buttes Reservoir, records update in batches, so a deed recorded last month can take weeks to appear.
Where to look for one
Older editions near Lake Nasworthy turn up in libraries and historical societies, which helps when tracing a farm's history.
Why people still buy them
Farmers, hunters and appraisers near San Angelo use plat books to see ownership across many tracts at once.
Offices that can help
Questions about value or the owner field for land near San Angelo go to the appraisal district, the office behind the parcel record. Questions about what you can build around Concho River need the planning or permitting office, town or county, depending on location.
Deeds, plats and who keeps them
For property near Carlsbad, the map is an index, not the title: recorded deeds, plats and easements for parcels in the county are filed with the County Clerk. If you're looking near Twin Buttes Reservoir, have ready the document number from the tax record to skip a name search.
The free online alternative
For current names, use the Tom Green CAD interactive map, across the county, and that holds around Harriett too.
Using it on a phone
Most viewers work in a phone browser, which helps when you're standing on land near Christoval, but coverage can be spotty out of town. A screenshot of the parcel near Knickerbocker with its ID helps when you meet an owner or agent.
Two kinds of plat
For property near Carlsbad, don't confuse the atlas with a recorded subdivision plat: the recorded plat at the County Clerk is a legal document, while the atlas is a reference.
Reading the legal description
Older tracts around Christoval are often described by metes and bounds, a series of courses and distances from a starting point. Subdivision lots in Knickerbocker usually use lot and block from a recorded plat instead, making them easier to find. Keep the legal description for land near Knickerbocker for any title or survey request.
When a parcel crosses a boundary
Tom Green County meets Coke County, Concho County, Irion County, Menard County, and Reagan County, all with their own assessor records. Acreage along the edge near Grape Creek can show up across two assessors' files, so check the neighboring map before you assume the acreage. If the land is near Harriett, our state page lists each bordering county map for Texas.
Getting your bearings
San Angelo holds the county offices, where most land records are kept. You'll also find Carlsbad, Christoval, Grape Creek, and Harriett. Roughly 119,057 people live in Tom Green County (Census Bureau estimate, 2023) across about 1,522 square miles. Tom Green County was formed in 1875, which matters when you trace an old farm's title. Features like Lake Nasworthy, Twin Buttes Reservoir, and San Angelo State Park are easy to spot when you zoom out.
Making your own township pages
Screenshot each section of the viewer around Harriett and keep them in a binder for the truck.
Tom Green County: common questions
Is a plat book the same as a recorded plat around Concho River?
For a tract near Christoval, a survey sets boundaries, not an atlas; check the deed.
Are old plat books online in Tom Green County?
If you're looking near Grape Creek, some older atlases have been digitized; call ahead.
Who sells plat books in Tom Green County?
Generally, the extension office or courthouse near Lake Nasworthy usually knows.
Why does the plat book differ from the deed around Christoval?
If the land is near Knickerbocker, plat book acreage and lines are approximate; they're good for orientation.
Is there a way to export the map near San Angelo?
For a parcel near San Angelo, use the print button or a screenshot; downloads of raw data vary by county.
Open the official Tom Green 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.