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Big Horn County, MT Parcels & GIS Data

Big Horn County, MT parcel data: 16,225 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 16,225 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

Official county website: https://itax.tylertech.com/BigHornMT/

The FIPS code for Big Horn County is 30003.

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Attribute coverage

Big Horn County contains 16,225 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL). For the LBCS columns, only real classifications count: the to-be-determined and not-applicable placeholder codes are excluded.

ColumnCoverageRecords populated
lrid100%16,225
parcelid98.5%15,978
parcelid299.8%16,193
ogparcelid98.5%15,978
ogparcelid299.8%16,193
parentid<0.1%0
stackid<0.1%0
geoid100%16,225
statefp100%16,225
countyfp100%16,225
countyname100%16,225
cousubfp100%16,225
cousubname100%16,225
tractce100%16,225
tractname100%16,225
taxacctnum98.2%15,941
taxyear100%16,225
taxdistrict98.4%15,972
usecode97.3%15,789
usedesc98.5%15,977
zoningcode<0.1%0
zoningdesc<0.1%0
numbldgs98.4%15,966
numunits23.3%3,786
yearbuilt13.0%2,109
numfloors13.1%2,119
bldgsqft13.0%2,109
bedrooms12.9%2,097
halfbaths2.6%417
fullbaths12.8%2,075
imprvalue94.4%15,323
landvalue98.2%15,934
agvalue<0.1%0
totalvalue98.2%15,934
taxacres98.2%15,941
calcarea100%16,225
saleamt<0.1%0
saledate56.9%9,228
ownertype98.4%15,972
ownername98.4%15,972
owneraddr98.4%15,972
ownercity96.8%15,712
ownerstate96.8%15,712
ownerzip96.8%15,712
parceladdr31.7%5,143
parcelcity33.7%5,475
parcelstate100%16,225
parcelzip91.3%14,811
legaldesc98.4%15,972
township98.8%16,036
section98.8%16,036
qtrsection98.8%16,036
range98.8%16,036
plssdesc98.8%16,036
book56.2%9,119
page56.2%9,119
block<0.1%0
lot<0.1%0
parceltype67.3%10,923
accesstype68.0%11,025
iucnclass3.0%485
placename6.3%1,030
placetype68.9%11,185
firmid0.8%127
firmdate0.8%127
fldzone0.8%127
zonesubty0.3%46
staticbfe<0.1%0
elevmin22.5%3,643
elevmax22.5%3,643
elevavg22.5%3,643
fireplaces1.8%288
heating13.0%2,109
heatfuel13.0%2,109
cooling13.0%2,109
foundation13.0%2,109
roofcover12.2%1,984
siding13.0%2,109
bldgtype<0.1%0
naicscode74.0%12,006
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated98.4%15,960
centroidx100%16,225
centroidy100%16,225
surfpointx100%16,225
surfpointy100%16,225
geom100%16,225
extras100%16,225
ownerlist97.3%15,788
placefp18.4%2,979
zoningurl<0.1%0
lbcsactivity48.3%7,832
lbcsfunction6.8%1,105
lbcstype76.4%12,397
lbcscharacter70.1%11,376
lbcsownership99.5%16,137
sourceurl91.9%14,909

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) 2 entities · most recent acquisition per entity · generated 2026-10-10 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 ADDRESS building place_type landmkname add_number st_premod st_predir st_pretyp st_presep st_name st_postyp st_posdir st_posmod unit floor post_code nbrhd_comm post_comm county state country geom discrpagid dateupdate effective expire inc_muni uninc_comm addnum_pre addnum_suf lst_predir lst_name lst_posdir room seat addtl_loc placement mt_plctype parcelid localid addtl_desc gnis_id datasettyp processid processdte globalid nguid lst_typ postcodeex milepost longitude latitude elevation house category near house_number road unit level postcode suburb city state_district state country geom extras PARCEL parcelid globalid propertyid taxyear assessmentcode proptype totalbuildingvalue totallandvalue totalvalue totalacres ownername owneraddress1 owneraddress2 owneraddress3 ownercity ownerstate ownerzipcode addressline1 legaldescriptionshort township section range geom levydistrict countycd countyname countyabbr gisacres subdivision certificateofsurvey addressline2 citystatezip propaccess continuouscropacres fallowacres farmsiteacres forestacres grazingacres wildhayacres irrigatedacres nonqualacres dbaname careoftaxpayer parcelid parcelid2 taxacctnum taxyear usecode 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 98.4% updated geom · derived from geometry geom dem.us_1m · USGS 1m DEM 22.5% elevmin 22.5% elevmax 22.5% elevavg s_fld_haz_ar · FEMA NFHL 0.8% fldzone 0.3% zonesubty 0.8% firmdate 0.8% firmid supplemented · derived / other pipelines 98.4% numbldgs 56.9% saledate 100% parcelstate 91.3% parcelzip 98.8% qtrsection 98.8% plssdesc 56.2% book 56.2% page 67.3% parceltype 68.0% accesstype 68.9% placetype 74.0% naicscode 97.3% ownerlist 76.4% lbcstype 70.1% lbcscharacter 99.5% lbcsownership 91.9% sourceurl 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 qtrsection range plssdesc book page parceltype accesstype placetype firmid firmdate fldzone zonesubty elevmin elevmax elevavg naicscode updated centroidx centroidy surfpointx surfpointy geom extras ownerlist lbcstype lbcscharacter lbcsownership sourceurl publish.parcel_layer columns not fed by these sources (36) — empty or below 50% fill in this county parentid, stackid, zoningcode, zoningdesc, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths, agvalue, saleamt parcelcity, block, lot, iucnclass, placename, staticbfe, fireplaces, heating, heatfuel, cooling, foundation, roofcover, siding, bldgtype, frsid dfrurl, caapermit, cwapermit, rcrapermit, placefp, zoningurl, lbcsactivity, lbcsfunction ADDRESS 15 mapped · 2 transformed · 7 unmapped (NULL) SOURCE COLUMNS HARMONIZED → ADDRESS building place_type landmkname add_number st_premod st_predir st_pretyp st_presep st_name st_postyp st_posdir st_posmod unit floor post_code nbrhd_comm post_comm county state country geom discrpagid dateupdate effective expire inc_muni uninc_comm addnum_pre addnum_suf lst_predir lst_name lst_posdir room seat addtl_loc placement mt_plctype parcelid localid addtl_desc gnis_id datasettyp processid processdte globalid nguid lst_typ postcodeex milepost longitude latitude elevation house category near house_number road NULLIF(TRIM(BOTH FROM concat_ws(' ', st_premod::text, st_predir… unit level postcode suburb city state_district state country geom extras ( json_build_object( 'discrpagid', discrpagid::text, 'dateupdat… not present in source — filled with NULL (7) staircase, entrance, po_box, city_district, island, country_region, world_region PARCEL 23 mapped · 16 transformed · 32 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL parcelid globalid propertyid taxyear assessmentcode proptype totalbuildingvalue totallandvalue totalvalue totalacres ownername owneraddress1 owneraddress2 owneraddress3 ownercity ownerstate ownerzipcode addressline1 legaldescriptionshort township section range geom levydistrict countycd countyname countyabbr gisacres subdivision certificateofsurvey addressline2 citystatezip propaccess continuouscropacres fallowacres farmsiteacres forestacres grazingacres wildhayacres irrigatedacres nonqualacres dbaname careoftaxpayer parcelid NULLIF(TRIM(parcelid), '')::text parcelid2 NULLIF(TRIM(globalid), '')::text taxacctnum taxyear usecode NULLIF(TRIM(assessmentcode), '')::text usedesc NULLIF(TRIM(proptype), '')::text imprvalue landvalue totalvalue taxacres ownername NULLIF(TRIM(ownername), '')::text owneraddr NULLIF(CONCAT_WS(', ', NULLIF(TRIM(owneraddress1), ''), NULLIF(… ownercity NULLIF(TRIM(ownercity), '')::text ownerstate NULLIF(TRIM(ownerstate), '')::text ownerzip NULLIF(TRIM(ownerzipcode), '')::text parceladdr NULLIF(TRIM(addressline1), '')::text legaldesc NULLIF(TRIM(legaldescriptionshort), '')::text township NULLIF(TRIM(township), '')::text section NULLIF(TRIM(section), '')::text range NULLIF(TRIM("range"), '')::text geom taxdistrict NULLIF(TRIM(levydistrict), '')::text extras json_build_object( 'countycd', countycd::text, 'countyname', NU… not present in source — filled with NULL (32) 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, heatfuel, fireplaces, heating cooling, foundation, roofcover, siding

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 16,225 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.

Does Big Horn County, MT have an official GIS or property records website?

Yes — the official Big Horn County, MT government website is linked in the county details above. Land Records standardizes Big Horn County, MT assessor and recorder records into a single nationwide parcel schema with GIS boundary geometry.

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated