Blog · October 8, 2026 · Montana
GIS Map of Gallatin County, Montana
Open the official Gallatin County parcel viewer, find an owner or a vacant tract, and learn which land records back up what the map shows.
Main page: Gallatin County, MT GIS & Parcel Viewer (official map link, Gallatin County facts and neighboring maps).
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Somewhere between Manhattan and the Fremont County, ID line is a tract you want to know more about. The Gallatin County GIS map is the free, official place to start.
We link the official viewer and the Gallatin County page in the Platbookmapper directory, explain the records behind the map, and cover the questions buyers, builders and hunters ask most.
Finding a parcel in Gallatin County
Start with the Gallatin County parcel viewer; it opens in a normal browser with no sign-in. Once parcel lines appear, click any tract near Bozeman to see who owns it and how many acres the county records. We keep the link current on our Gallatin County (MT) directory page, next to the neighboring maps.
Behind the map: land records in Gallatin County
Every line on the Gallatin County map traces back to a recorded deed or plat, and the county's recording office keeps those documents. Which office that is depends on how Montana organizes it, so look it up on the Gallatin County government site before you call. If you need a plat for a lot in Belgrade, look for the plat book and page or the subdivision name in the parcel record, then request that document from the recording office.
Towns, terrain and land across Gallatin County
Belgrade, Three Forks, Manhattan, and West Yellowstone fill out the town list, and Bozeman is where the county seat sits. Don't overlook unincorporated places like Amsterdam, Big Sky, and Bridger, where rural homesites often come up. The county was organized in 1865 and named for Gallatin River (Albert Gallatin), so some tracts carry a long chain of deeds. By Census Bureau figures, the county had roughly 126,409 residents in 2023, spread over about 2,605 square miles of land. You'll see dense subdivision lots around Manhattan and a looser rural pattern in between. Look for Yellowstone National Park and Gallatin National Forest on the map; the private tracts touching them are some of the most asked-about parcels in Gallatin County.
Who uses the Gallatin County parcel map
- For hobby-farm buyers near Bozeman, the parcel map shows how a tract sits against its neighbors and the road.
- Raw-land buyers scan Gallatin County imagery for empty tracts and check the owner records behind them.
- Hunters in Gallatin County use the owner names to line up permission well before the season.
Acreage and vacant lot search
Five steps for vacant land in Gallatin County:
- Scan the imagery around Big Sky; open fields and woodlots with no driveway stand out right away.
- Build a short list of open parcels around Bozeman with owner names and acreage before you make any calls.
- Line up the assessed land values of a few neighboring tracts near Three Forks to sanity-check an asking price.
- Confirm legal access. In Gallatin County, as anywhere, a parcel with no road frontage depends on an easement.
- Ask the local offices serving Bozeman about building permits and septic rules before you buy.
Before you buy near Bozeman, read how to tell if land is buildable.
What the Gallatin County GIS map shows about lot lines
Parcel boundaries on the Gallatin County viewer are drawn to keep tax accounts straight, so small offsets from the true line are expected. Montana uses the Public Land Survey System, so rural deeds in Gallatin County often describe land by section, township and range, and you can match the call to the grid on the map. A survey is the only document that settles where a Gallatin County boundary actually runs.
A note on timing and acreage
If a tract near Three Forks changed hands recently, the recorded deed is more current than the map. Acreage on the Gallatin County map is a tax figure; a survey is what a lender or buyer should rely on.
Common questions
How can I tell who owns land near Manhattan?
Look up the address in Bozeman, or click the tract. Owner names on the Gallatin County map come from recorded deeds.
How do I find property lines in Gallatin County?
Map first, then the recorded plat or deed, then a survey: that order works for any boundary question in Gallatin County.
Who records deeds in Gallatin County?
The Gallatin County recording office keeps deeds and plats; its official title differs from state to state, and the county website names it.
Is there a printed plat book for Gallatin County?
Whether a current printed edition exists for Gallatin County varies; the free online map covering Manhattan and the rest of the county is the dependable option.
Open the official Gallatin County, MT parcel map Gallatin 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.