Postal boundaries

Montana 3-digit ZIP boundaries

  • 12 boundary areas included
  • 9 data fields with sample values
  • Part of the USA 3-digit ZIP boundaries collection for Montana
Preview of Montana 3-digit ZIP boundaries map
Enlarged preview of Montana 3-digit ZIP boundaries map

Montana 3-digit ZIP boundaries Data Sample

Below is a sample of some of the fields included in this GIS file. These columns can be visualized in QGIS, Power BI, Leaflet, and other mapping or analytics tools supporting GeoJSON.

Field Name Sample Data
fid 457, 458, 459
ZIP3 000, 577, 590
STATE MT, MT, MT
ZIP 00063, 57724, 59053
ZIP2 0, 57, 59
ZIP4 6, 5772, 5905
PO_NAME Benton Lake NWR, Camp Crook, Martinsdale
area_km 33.5, 469.6, 970.2
CARTO_REGION State, State, State

Dataset information

About the Montana 3-digit ZIP boundaries GeoJSON file

  • Map ID: usa_zip3_boundaries_mt
  • Collection: USA 3-digit ZIP boundaries
  • Region: Montana
  • Boundary areas: 12
  • Attribute fields: 9
  • Preview generated: 9 August 2026

This postal boundary dataset contains 12 boundary areas and 9 data fields from the USA 3-digit ZIP boundaries collection for Montana.

£85.00
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Note on Compatibility

We strive to provide universally compatible GeoJSON files, but sometimes a mapping application may require a specific coordinate reference system (projection) or particular data fields. If your file doesn't load or display as expected, please get in touch. We can reproject the file, add additional data columns to the polygons, or even develop a custom mapping tool—whether simple or complex—to ensure your data visualizes correctly. We won't rest until everything works just the way you need!

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