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ATLAS · STATE·MT

Montana county
parcel REST APIs.

4 counties indexed. ArcGIS FeatureServer and MapServer URLs, with supported search fields per layer.

Endpoint URLs · 4 counties

Yellowstone County, MThttps://gisservice.mt.gov/arcgis/rest/services/msdi_cadastral_map_v1/MapServer/1
Missoula County, MThttps://gisservice.mt.gov/arcgis/rest/services/msdi_cadastral_map_v1/MapServer/1
Cascade County, MThttps://gisservice.mt.gov/arcgis/rest/services/msdi_cadastral_map_v1/MapServer/1
Flathead County, MThttps://gisservice.mt.gov/arcgis/rest/services/msdi_cadastral_map_v1/MapServer/1

Counties indexed in this state, with endpoint counts, supported fields, and the registry's listing status. The registry listing is a curation record, not a live check — see the status page for what the liveness probe last observed.
County	Endpoints	Searchable fields	Registry listing	Action
Cascade County	1	Parcel ID · Owner Name · Property Address	LISTED LIVE	OPEN
Flathead County	1	Parcel ID · Owner Name · Property Address	LISTED LIVE	OPEN
Missoula County	1	Parcel ID · Owner Name · Property Address	LISTED LIVE	OPEN
Yellowstone County	1	Parcel ID · Owner Name · Property Address	LISTED LIVE	OPEN

County index · 4 counties

All 4 Montana counties

Each county links to its atlas entry, endpoint URL, searchable fields, and a sample query where one is published.

Questions, with answers

Montana parcel REST API, common questions

Which Montana counties publish a public parcel ArcGIS REST API?

4 Montana counties are indexed in the UrbanKit atlas with verified public REST endpoints: Yellowstone, Missoula, Cascade, and Flathead. Each exposes an owner-name field you can search directly on the public layer.

How do I search Montana parcels by owner name?

Yellowstone, Missoula, Cascade, and Flathead expose an owner-name field on the public REST layer. Yellowstone, for example, uses the OwnerName field. A case-insensitive search is ?where=UPPER(OwnerName)%20LIKE%20UPPER('%25SMITH%25')&outFields=*&f=json. Open a county's page here for its full field list and a ready-to-run sample query.

What is the ArcGIS REST URL for parcels in Yellowstone, Montana?

Yellowstone publishes parcels at https://gisservice.mt.gov/arcgis/rest/services/msdi_cadastral_map_v1/MapServer/1, a MapServer (layer 1). It indexes by Parcel ID, Owner Name, and Property Address. Owner-name search: UPPER(OwnerName) LIKE UPPER('%25SMITH%25').

Do Montana parcel layers use ArcGIS FeatureServer or MapServer?

Montana's indexed counties (Yellowstone, Missoula, Cascade, and Flathead) publish county-hosted ArcGIS MapServer layers. MapServer supports the same /query operation for owner, parcel-ID, and address lookups as FeatureServer. For read-only parcel lookups the two are interchangeable.

Listing missing or moved? Tell us. A full four-shard sweep checks every endpoint every two hours, with degraded endpoints re-checked every 30 minutes.