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Jefferson County, MT Parcels & GIS Data

Jefferson County, MT parcel data: 14,741 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Jefferson County, Montana parcel data covering 14,741 property records.

This page documents parcel-level coverage for Jefferson 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 Jefferson County are listed in the attribute-coverage table below. Preview the data in the interactive explorer, or download the complete Jefferson County property dataset.

Jefferson County is a county in Montana, United States. As of the 2020 census, the population was 12,085. Its county seat is Boulder. The county was created in 1865 and named for President Thomas Jefferson.

FIPS 30043

Official county website: https://www.jeffersoncounty-mt.gov

The FIPS code for Jefferson County is 30043.

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Attribute coverage

Jefferson County contains 14,741 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%14,741
parcelid100%14,741
parcelid2100%14,734
ogparcelid100%14,741
ogparcelid2100%14,734
parentid<0.1%0
stackid<0.1%0
geoid100%14,741
statefp100%14,741
countyfp100%14,741
countyname100%14,741
cousubfp100%14,741
cousubname100%14,741
tractce100%14,741
tractname100%14,741
taxacctnum11.4%1,685
taxyear100%14,734
taxdistrict100%14,734
usecode99.9%14,724
usedesc100%14,734
zoningcode<0.1%0
zoningdesc<0.1%0
numbldgs100%14,741
numunits47.3%6,975
yearbuilt40.0%5,900
numfloors40.1%5,904
bldgsqft40.0%5,900
bedrooms39.2%5,780
halfbaths12.3%1,819
fullbaths38.9%5,738
imprvalue46.7%6,882
landvalue99.6%14,677
agvalue<0.1%0
totalvalue99.6%14,677
taxacres100%14,734
calcarea100%14,741
saleamt<0.1%0
saledate82.7%12,187
ownertype100%14,734
ownername100%14,734
owneraddr100%14,734
ownercity99.9%14,721
ownerstate99.9%14,721
ownerzip99.9%14,721
parceladdr100%14,738
parcelcity69.6%10,258
parcelstate100%14,741
parcelzip100%14,741
legaldesc100%14,734
township99.6%14,678
section99.6%14,678
qtrsection99.6%14,678
range99.6%14,678
plssdesc99.6%14,678
book15.6%2,296
page15.6%2,296
block<0.1%0
lot<0.1%0
parceltype15.8%2,322
accesstype15.8%2,322
iucnclass13.5%1,991
placename17.7%2,612
placetype17.6%2,593
firmid5.1%755
firmdate5.1%755
fldzone5.1%755
zonesubty4.4%643
staticbfe<0.1%0
elevmin7.0%1,038
elevmax7.0%1,038
elevavg7.0%1,038
fireplaces6.9%1,023
heating40.0%5,900
heatfuel40.0%5,900
cooling40.0%5,900
foundation40.0%5,900
roofcover35.1%5,181
siding40.0%5,900
bldgtype<0.1%0
naicscode34.4%5,075
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated100%14,741
centroidx100%14,741
centroidy100%14,741
surfpointx100%14,741
surfpointy100%14,741
geom100%14,741
extras100%14,741
ownerlist99.3%14,634
placefp46.8%6,901
zoningurl<0.1%0

Schema mapping

How source columns from the acquired Jefferson 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 — Jefferson County, Montana (30043) 1 entity · most recent acquisition per entity · generated 2026-08-30 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 7.0% elevmin 7.0% elevmax 7.0% elevavg s_fld_haz_ar · FEMA NFHL 5.1% fldzone 4.4% zonesubty 5.1% firmdate 5.1% firmid supplemented · derived / other pipelines 100% usecode 100% numbldgs 82.7% saledate 69.6% parcelcity 100% parcelstate 100% parcelzip 100% qtrsection 100% plssdesc 99.3% ownerlist 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 parcelcity parcelstate parcelzip legaldesc township section qtrsection range plssdesc firmid firmdate fldzone zonesubty elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras ownerlist 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, book page, block, lot, parceltype, accesstype, iucnclass, placename, placetype, staticbfe, fireplaces, heating, heatfuel, cooling, foundation roofcover, siding, bldgtype, naicscode, frsid, dfrurl, caapermit, cwapermit, rcrapermit, placefp, zoningurl 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 Jefferson County:

Frequently asked questions

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

Land Records publishes a Jefferson 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 Jefferson County, MT dataset as a GeoPackage or CSV.

How many parcels are in Jefferson County, MT?

The current dataset contains 14,741 parcel records for Jefferson County, MT, each with its boundary geometry and assessor attributes.

What is the FIPS code for Jefferson County, MT?

The FIPS code for Jefferson County, MT is 30043.

What information does each Jefferson County, MT parcel record include?

Each Jefferson 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 Jefferson County, MT parcel data free?

You can preview Jefferson 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 Jefferson County, MT have an official GIS or property records website?

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

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated