Data 4 MT / Data
Montana land data catalog
84 datasets from the state’s cadastral, county recorders, city permit offices, DNRC, DEQ, FEMA and federal agencies, covering 5,937,258 records in 56 counties. Each dataset page lists the publisher, update frequency and known gaps.
Ownership
Parcel ownership in Montana and changes in ownership.
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Parcels and owners
Taxable parcels in Montana with owner, acreage, assessed value and owner mailing address.
Montana Department of Revenue, via the Montana State Library cadastral887,264Oct 6, 2026 -
Ownership changes
Parcel sales, transfers to companies and out-of-state buyers, public land sold to private owners, and splits, from monthly copies of the state parcel roll.
Derived by Data 4 MT from the Montana cadastral31,747Oct 5, 2026 -
Recorded documents (county recorder index)
Deeds, mortgages, liens, plats and other documents from county recorder indexes, placed on parcels by legal description.
Cascade and Yellowstone County Clerk & Recorder2,232Sep 23, 2026 -
Absentee-owned homes
Homes where the owner’s mailing address differs from the property address, such as second homes, rentals and investor-owned houses.
Derived by Data 4 MT from the Montana cadastral and MSDI address points100,918Oct 5, 2026 -
Conservation easements
Land protected by a recorded conservation easement, and the land trust or agency that holds it.
Montana State Library, Montana Natural Heritage Program2,785Oct 6, 2026 -
Certificates of survey
Survey references (COS) tied to parcels, with a link to the county recorder where the survey can be pulled.
MT DNRC cadastral and county recorders73,364Oct 6, 2026
Development
Building permits, development plans and land-use hearings.
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Missoula Building Permits (Accela)
City and County of Missoula building permits.
City & County of Missoula15,351Sep 23, 2026 -
Zoning districts
Zoning districts in 19 cities and counties, with a link to each jurisdiction’s zoning code.
Each city and county’s own GIS11,379Oct 6, 2026 -
Great Falls Permits (EnerGov)
City permits. The city doesn't publish a status, so none are open or closed.
City of Great Falls9,411Sep 23, 2026 -
Bozeman Building Permits
City of Bozeman, every permit type. Sub-permits are folded into one project.
City of Bozeman6,038Sep 23, 2026 -
DEQ Water Discharge Permits (FACTS / MPDES)
Statewide discharge permits (MPDES).
Montana DEQ2,864Sep 23, 2026 -
New address points
Addresses added to the state address points since the previous monthly copy, which can indicate new construction where no permits are published.
Montana State Library, MSDI Structures and Addresses2,740Oct 6, 2026 -
Missoula County Septic Permits (SEWPER)
New and replacement septic permits. Other counties don't publish theirs.
Missoula County2,166Sep 23, 2026 -
DEQ Opencut Mining Sites
Gravel and sand pits statewide. DEQ publishes no dates.
Montana DEQ1,578Sep 23, 2026 -
DEQ Underground Storage Tank Facilities
Underground storage tank sites. No dates.
Montana DEQ1,134Sep 23, 2026 -
Helena Residential Building Permits
Residential permits for finished new buildings only.
City of Helena607Sep 23, 2026 -
DEQ Solid Waste Facility Licenses
Landfill and solid-waste licences.
Montana DEQ407Sep 23, 2026 -
MDT Commission-Approved Local Projects
Road and bridge projects the Transportation Commission approved.
Montana DOT339Sep 23, 2026 -
MDT Tentative Construction Plan (5-year highway program)
The five-year tentative construction plan.
Montana DOT295Sep 23, 2026 -
Kalispell Building Permits (current year)
This year's permits.
City of Kalispell289Sep 23, 2026 -
Kalispell Building Permits (previous year)
Last year's permits, kept for the timeline.
City of Kalispell286Sep 23, 2026 -
Kalispell Conditional Use Permits
Conditional use permits approved by the city.
City of Kalispell245Sep 23, 2026 -
Gallatin County Land Use Permits
County land use permits outside city limits.
Gallatin County237Sep 23, 2026 -
Gallatin County Active Developments
Subdivisions and developments under county review.
Gallatin County215Sep 23, 2026 -
DEQ Hard Rock Mining Permit Sites (Active)
Active hard-rock mining permits. No dates.
Montana DEQ185Sep 23, 2026 -
Bozeman Planning / Development Review Projects
Development review: site plans, subdivisions, zone changes.
City of Bozeman72Sep 23, 2026 -
Helena Commercial Building Permits
Commercial permits for finished new buildings only.
City of Helena71Sep 23, 2026 -
Public hearing agendas (land use)
Subdivisions, zone changes, variances and other land-use items on upcoming county commission and planning board agendas.
County commissions, planning boards and city commissions (15 bodies)69Oct 5, 2026
Land & water
Water rights, wells, minerals, flood maps and environmental records.
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Water rights
Water rights in Montana’s water rights database, with holder, purpose, amount and priority date (earlier dates are senior).
Montana DNRC Water Resources Division603,706Oct 5, 2026 -
Water rights: places of use
The land where each water right’s water is used, as DNRC maps it (quarter-quarter sections).
Montana DNRC Water Resources Division553,917Oct 5, 2026 -
Water wells (GWIC)
Wells drilled in Montana with depth, water level, yield and the driller’s log number.
Montana Bureau of Mines and Geology, Ground Water Information Center280,793Oct 5, 2026 -
Oil and gas wells
Oil and gas wells with operator, status, type and field, plus recent permits from the weekly activity letters.
Montana Board of Oil and Gas Conservation (DNRC)42,049Oct 5, 2026 -
Mining claims (open)
Unpatented mining claims whose BLM case is not closed (active, filed or under review).
Bureau of Land Management, MLRS18,410Oct 5, 2026 -
Flood map changes (LOMC)
FEMA Letters of Map Change in Montana since 1980, which remove properties from or add them to the mapped floodplain.
FEMA4,378Oct 6, 2026 -
FEMA flood map panels
Flood Insurance Rate Map panels with links to the panel and study downloads.
FEMA Map Service Center3,954Oct 6, 2026 -
Levees
Levee systems in the National Levee Database.
US Army Corps of Engineers, National Levee Database41Oct 6, 2026 -
Historic mine sites (MRDS)
Mines, prospects and mineral occurrences from the USGS Mineral Resources Data System.
US Geological Survey14,808Oct 6, 2026 -
Contaminated sites (DEQ)
State-listed contaminated and cleanup sites from Montana DEQ.
Montana Department of Environmental Quality763Oct 6, 2026 -
Superfund sites (EPA)
EPA National Priorities List sites in Montana.
US EPA19Oct 6, 2026 -
Sage-grouse habitat
Core, general and connectivity habitat under Montana’s sage-grouse program, which shapes permitting on state and federal land.
Montana Sage Grouse Habitat Conservation Program55Oct 6, 2026 -
Stream gages
USGS stream gages with links to live flow.
US Geological Survey257Oct 6, 2026 -
Flood hazard areas (effective and draft)
Effective FEMA flood zones plus DNRC’s draft floodplains, which are not in FEMA’s national layer yet.
MT DNRC Floodplain ProgramLive layer -
Wetlands (NWI)
Mapped wetlands and riparian areas.
US Fish & Wildlife Service, National Wetlands InventoryLive layer -
Soils (SSURGO)
Soil map units with drainage, septic and building ratings.
USDA NRCSLive layer -
Critical habitat (ESA)
Designated critical habitat for listed species.
US Fish & Wildlife ServiceLive layer -
Earthquake faults
Quaternary fault traces.
US Geological SurveyLive layer -
Wildland-urban interface
Where homes meet wildland vegetation (2020).
USDA Forest ServiceLive layer
Access
Legal public access to public land.
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Public land access
Public land parcels classed by legal public access: open from a public road, corner-locked, or landlocked.
Derived by Data 4 MT from BLM, USFS, DNRC and county road data11,163Oct 6, 2026 -
Public lands and managed areas
Federal, state and local public land, wilderness, parks and wildlife areas.
Montana State Library, MSDI Public LandsLive layer
Site & infrastructure
Roads, power, bridges, dams and other infrastructure.
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Bridges (NBI)
Bridges in the National Bridge Inventory with year built and condition ratings.
Federal Highway Administration5,217Oct 6, 2026 -
Dams (NID)
Dams with owner type, hazard class, condition and storage.
US Army Corps of Engineers, National Inventory of Dams3,025Oct 6, 2026 -
Airports and heliports
Public and private airports, airstrips and heliports.
FAA via OurAirports365Oct 6, 2026 -
Power plants
Generating plants with primary source and capacity.
US Energy Information Administration86Oct 6, 2026 -
Historic places (NRHP)
Properties on the National Register of Historic Places.
National Park Service1,108Oct 6, 2026 -
Weather stations (ASOS)
Automated airport weather stations with archive links.
Iowa Environmental Mesonet60Oct 6, 2026 -
Traffic counts (AADT)
All MDT-counted segments statewide for 2025: Interstates, US and state highways, urban routes and many secondary roads (8,560 segments; 7,458 count sites with 2014–2025 history).
Montana Department of Transportation8,560Oct 6, 2026 -
Broadband availability
Not loaded yet.
Federal Communications Commission— -
Transmission lines
Lines of 69 kV and above, statewide. This is the same file as the Parcels view's transmission layer.
Homeland Infrastructure Foundation-Level Data (HIFLD)559Oct 6, 2026 -
Substations
388 points where 69 kV+ lines end in Montana: 188 named substations, 47 unnamed, and 153 taps.
Derived from HIFLD transmission lines388Oct 6, 2026 -
Planned generation & queue requests
7 planned generating units that EIA tracks in Montana, plus 1 active Montana requests in BPA's queue.
U.S. EIA (Form 860M) and Bonneville Power Administration8Oct 6, 2026 -
Public water system service areas
600 Montana community water systems. Most boundaries are EPA-modelled from parcels and system size (Modeled: 486, System Sourced: 114).
U.S. EPA (Office of Water / ORD)600Oct 6, 2026 -
Water systems without a mapped area
205 small community systems (subdivisions, mobile-home parks, colonies) placed at their reported location.
U.S. EPA (SDWIS)205Oct 6, 2026 -
Soils: dwellings without basements
Statewide on 537,000 H3 hexagons. NRCS 'ENG - Dwellings W/O Basements', dominant condition.
USDA NRCS537,000Oct 6, 2026 -
Soils: septic absorption fields
NRCS 'ENG - Septic Tank Absorption Fields', dominant condition.
USDA NRCS537,000Oct 6, 2026 -
Soils: farmland class
NRCS farmland classification of the dominant map unit (prime, prime if irrigated, statewide or local importance).
USDA NRCS537,000Oct 6, 2026 -
Soils: drainage class
NRCS drainage class (dominant condition, muaggatt.drclassdcd).
USDA NRCS537,000Oct 6, 2026 -
Slope
Slope computed from the ~30 m DEM, then averaged over each H3 hexagon. Also shows the share of the hexagon steeper than 15 % and 25 %.
U.S. Geological Survey537,000Oct 6, 2026 -
Wildfire risk to homes
Risk to Potential Structures (RPS) and annual burn probability, averaged over each hexagon. Classes are Montana percentiles of hexagons with any risk, at the 40th, 70th, 90th and 95th (the WRC's own break points).
USDA Forest Service537,000Oct 6, 2026
Money & policy
Taxes, levies, incentives and public spending tied to land.
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Property tax levy districts (mills where published)
All 56 counties: 1314 levy-district polygons from the Department of Revenue's 2026 map. Total mills with a state/county/city/school breakdown are attached for Yellowstone County (47 districts, tax year 2025).
Montana Department of Revenue, Property Assessment Division1,314Oct 6, 2026 -
Tax increment financing (TIF / urban renewal) districts
Statewide DOR register of TIF districts mapped by the State Library: 90 districts (67 existing, 18 terminated, 5 proposed) in 23 counties.
Montana Department of Revenue (attributes) / Montana State Library (boundaries)90Oct 6, 2026 -
Opportunity Zones (2018 designation)
All 25 Montana census tracts designated as Qualified Opportunity Zones in 2018 (2010 tract lines).
U.S. Treasury / CDFI Fund (via HUD eGIS)25Oct 6, 2026 -
Opportunity Zones 2.0: eligible tracts and Governor's selections
The 58 Montana tracts eligible for the 2027 OZ designation round (2020 tracts), with the Governor's selection status from Montana Commerce: 34 not selected by governor, 20 selected by governor, 4 under discussion.
Montana Department of Commerce58Oct 6, 2026 -
New Markets Tax Credit eligible tracts
110 of 319 Montana census tracts qualify as NMTC low-income communities (poverty ≥ 20% or median family income ≤ 80% of benchmark, ACS 2016–2020), with severe/deep distress flags.
U.S. Treasury CDFI Fund (via HUD eGIS)110Oct 6, 2026 -
Future land use (city land use plans)
6 of the 10 MLUPA cities publish their future land use map as GIS: Belgrade, Billings, Bozeman, Great Falls, Kalispell, Missoula. Each city's own category is kept as the label and grouped into nine shared classes for colouring.
City planning departments (Belgrade, Billings, Bozeman, Great Falls, Kalispell, Missoula)3,004Oct 6, 2026
Market
Population, income, rents, permits and jobs by county.
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Median gross rent (tracts)
All 319 Montana census tracts (2020 boundaries), ACS 2020-2024 5-year estimates.
U.S. Census Bureau319Oct 6, 2026 -
Median household income (tracts)
All 319 Montana census tracts (2020 boundaries), ACS 2020-2024 5-year estimates.
U.S. Census Bureau319Oct 6, 2026 -
Median home value (tracts)
All 319 Montana census tracts (2020 boundaries), ACS 2020-2024 5-year estimates.
U.S. Census Bureau319Oct 6, 2026 -
Renter-occupied share (tracts)
All 319 Montana census tracts (2020 boundaries), ACS 2020-2024 5-year estimates.
U.S. Census Bureau319Oct 6, 2026 -
Vacant housing share (tracts)
All 319 Montana census tracts (2020 boundaries), ACS 2020-2024 5-year estimates.
U.S. Census Bureau319Oct 6, 2026 -
Population change, 5 years (counties)
All 56 counties, Population Estimates Program, Vintage 2025 county totals: July 1 2020 to July 1 of the latest vintage year.
U.S. Census Bureau56Oct 6, 2026 -
Housing units permitted, last 5 years per 1,000 residents (counties)
All 56 counties, annual 2016–2025 plus monthly through 2026-08.
U.S. Census Bureau56Oct 6, 2026 -
HUD Fair Market Rent, 2 bedroom (counties)
All 56 counties (each sits in exactly one FMR area). Values for 0–4 bedrooms are in the popup and county table.
U.S. Department of Housing and Urban Development (PD&R)56Oct 6, 2026 -
Average weekly wage (counties)
All 56 counties, County Business Patterns 2023 (fallback for BLS QCEW); the 5-year change compares with the annual average five years earlier.
U.S. Census Bureau56Oct 6, 2026 -
Job growth, 5 years (counties)
All 56 counties, County Business Patterns 2023 (fallback for BLS QCEW): latest year vs five years earlier.
U.S. Census Bureau56Oct 6, 2026
Using the data
Each dataset page has a sortable preview, a list of fields, and downloads where the data is a public file. Programs can read the same metadata from the static JSON API; county numbers are on the county profiles.
Data 4 MT is an index of public records. It republishes only what Montana and federal agencies make public, with a link to the source on each record. People are shown as “Private individual” on public pages and downloads; companies, trusts held by institutions, and governments keep their names. No document images, sale prices, voter, MVD or wildlife-telemetry data are stored.