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Big Horn County, MT Parcels & GIS Data

Big Horn County, MT parcel data: 15,555 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Big Horn County, Montana parcel data covering 15,555 property records.

This page documents parcel-level coverage for Big Horn County, Montana. Each parcel record carries its boundary polygon (GIS geometry) along with attributes such as the parcel ID/APN, owner name and mailing address, situs (property) address, assessed land and improvement values, acreage, land-use and zoning codes, year built, and most recent sale price and date. Exact fill rates for Big Horn County are listed in the attribute-coverage table below. Preview the data in the interactive explorer, or download the complete Big Horn County property dataset.

Big Horn County is a county located in the U.S. state of Montana. As of the 2020 census, the population was 13,124. The county seat is Hardin.

FIPS 30003

The FIPS code for Big Horn County is 30003.

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Attribute coverage

Big Horn County contains 15,555 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%15,555
parcelid100%15,551
parcelid299.9%15,547
ogparcelid100%15,551
ogparcelid299.9%15,547
parentid<0.1%0
stackid<0.1%0
geoid100%15,555
statefp100%15,555
countyfp100%15,555
countyname100%15,555
cousubfp100%15,555
cousubname100%15,555
tractce100%15,555
tractname100%15,555
taxacctnum5.2%807
taxyear100%15,548
taxdistrict100%15,548
usecode99.9%15,546
usedesc100%15,548
zoningcode<0.1%0
zoningdesc<0.1%0
numbldgs100%15,551
numunits23.2%3,615
yearbuilt13.5%2,102
numfloors13.6%2,111
bldgsqft13.5%2,102
bedrooms13.4%2,090
halfbaths2.6%412
fullbaths13.3%2,069
imprvalue20.4%3,173
landvalue99.3%15,439
agvalue<0.1%0
totalvalue99.3%15,439
taxacres100%15,551
calcarea100%15,555
saleamt<0.1%0
saledate58.7%9,124
ownertype100%15,552
ownername100%15,552
owneraddr100%15,548
ownercity98.3%15,290
ownerstate98.3%15,290
ownerzip98.3%15,290
parceladdr99.9%15,547
parcelcity34.3%5,340
parcelstate100%15,555
parcelzip91.1%14,178
legaldesc100%15,548
township<0.1%0
section<0.1%0
qtrsection<0.1%0
range<0.1%0
plssdesc<0.1%0
book58.1%9,030
page58.1%9,030
block<0.1%0
lot<0.1%0
parceltype68.3%10,626
accesstype68.3%10,626
iucnclass2.8%428
placename6.0%935
placetype69.3%10,774
firmid<0.1%0
firmdate<0.1%0
fldzone<0.1%0
zonesubty<0.1%0
staticbfe<0.1%0
elevmin22.3%3,467
elevmax22.3%3,467
elevavg22.3%3,467
fireplaces1.8%285
heating13.5%2,102
heatfuel13.5%2,102
cooling13.5%2,102
foundation13.5%2,102
roofcover12.7%1,979
siding13.5%2,102
bldgtype<0.1%0
naicscode82.5%12,833
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated100%15,555
centroidx100%15,555
centroidy100%15,555
surfpointx100%15,555
surfpointy100%15,555
geom100%15,555
extras100%15,555
ownerlist<0.1%0

Schema mapping

How source columns from the acquired Big Horn County GIS layers map into the harmonized entity schemas and assemble into the published parcel table, alongside supplemented fields (elevation, flood zone) and deterministic columns.

Schema mapping — Big Horn County, Montana (30003) 1 entity · most recent acquisition per entity · generated 2026-07-25 direct column transformed (expression) geometry extras json supplemented determined ALL ENTITIES → FINAL PARCEL SCHEMA Harmonized entity columns assemble into publish.parcel_layer — matched by column name. Supplemented fields show their fill rate in this county. SOURCE COLUMNS HARMONIZED ENTITIES PUBLISH.PARCEL_LAYER PARCEL parcelid propertyid assessmentcode taxyear proptype totalbuildingvalue totallandvalue totalvalue totalacres ownername owneraddress1 ownercity ownerstate ownerzipcode addressline1 legaldescriptionshort township section range geom levydistrict 19 cols ⇢ parcelid parcelid2 taxacctnum taxyear usedesc imprvalue landvalue totalvalue taxacres ownername owneraddr ownercity ownerstate ownerzip parceladdr legaldesc township section range geom taxdistrict extras determined · ground truth 100% lrid 100% geoid 100% statefp 100% countyfp 100% countyname 100% cousubfp 100% cousubname 100% tractce 100% tractname 100% updated geom · derived from geometry geom dem.us_1m · USGS 1m DEM 22.3% elevmin 22.3% elevmax 22.3% elevavg supplemented · derived / other pipelines 100% usecode 100% numbldgs 58.7% saledate 100% parcelstate 91.1% parcelzip 58.1% book 58.1% page 68.3% parceltype 68.3% accesstype 69.3% placetype 82.5% naicscode lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxacctnum taxyear taxdistrict usecode usedesc numbldgs imprvalue landvalue totalvalue taxacres calcarea saledate ownertype ownername owneraddr ownercity ownerstate ownerzip parceladdr parcelstate parcelzip legaldesc township section range book page parceltype accesstype placetype elevmin elevmax elevavg naicscode updated centroidx centroidy surfpointx surfpointy geom extras publish.parcel_layer columns not fed by these sources (39) — empty or below 50% fill in this county parentid, stackid, zoningcode, zoningdesc, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths, agvalue, saleamt parcelcity, qtrsection, plssdesc, block, lot, iucnclass, placename, firmid, firmdate, fldzone, zonesubty, staticbfe, fireplaces, heating heatfuel, cooling, foundation, roofcover, siding, bldgtype, frsid, dfrurl, caapermit, cwapermit, rcrapermit, ownerlist PARCEL 21 mapped · 19 kept in extras · 33 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL parcelid propertyid assessmentcode taxyear proptype totalbuildingvalue totallandvalue totalvalue totalacres ownername owneraddress1 ownercity ownerstate ownerzipcode addressline1 legaldescriptionshort township section range geom levydistrict parcelid parcelid2 taxacctnum taxyear usedesc imprvalue landvalue totalvalue taxacres ownername owneraddr ownercity ownerstate ownerzip parceladdr legaldesc township section range geom taxdistrict extras · 19 source columns preserved as json countycd, countyname, gisacres, subdivision certificateofsurvey, addressline2, citystatezip, propaccess continuouscropacres, fallowacres, farmsiteacres, forestacres grazingacres, wildhayacres, irrigatedacres, nonqualacres owneraddress2, owneraddress3, careoftaxpayer extras not present in source — filled with NULL (33) usecode, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths, agvalue, saleamt, saledate parcelcity, parcelstate, parcelzip, qtrsection, plssdesc, book, page, block, lot, updated, sourceurl, parentid, fireplaces, heating, cooling foundation, roofcover, siding, heatfuel

Neighboring counties

Parcel data for counties bordering Big Horn County:

Frequently asked questions

Where can I find Big Horn County, MT parcel and GIS data?

Land Records publishes a Big Horn County, MT parcel dataset in which every parcel carries its boundary polygon (GIS geometry) along with ownership, assessed value, land use, acreage, and sale history. Preview it in the interactive explorer on this page, or download the full Big Horn County, MT dataset as a GeoPackage or CSV.

How many parcels are in Big Horn County, MT?

The current dataset contains 15,555 parcel records for Big Horn County, MT, each with its boundary geometry and assessor attributes.

What is the FIPS code for Big Horn County, MT?

The FIPS code for Big Horn County, MT is 30003.

What information does each Big Horn County, MT parcel record include?

Each Big Horn County, MT parcel record includes the parcel ID/APN, owner name and mailing address, situs (property) address, assessed land and improvement values, acreage, land-use and zoning codes, year built, and the most recent sale price and date — plus the parcel boundary polygon. Per-attribute fill rates are listed in the coverage table on this page.

Is Big Horn County, MT parcel data free?

You can preview Big Horn County, MT parcels for free in the interactive explorer. The complete dataset is available as a one-time download or through the nationwide parcel web service; see the download options on this page for current pricing.

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated
Big Horn County, MT Parcels & GIS Data — Property Records & Maps | Land Records