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Baltimore County, MD Parcels & GIS Data

Baltimore County, MD parcel data: 373,553 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Baltimore County, Maryland parcel data covering 373,553 property records.

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

Baltimore County is the third-most populous county in the U.S. state of Maryland. The county is part of the Central Maryland region of the state. Baltimore County partly surrounds but does not include the independent city of Baltimore.

FIPS 24005

The FIPS code for Baltimore County is 24005.

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Attribute coverage

Baltimore County contains 373,553 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%373,553
parcelid100%373,536
parcelid2100%373,551
ogparcelid100%373,538
ogparcelid2100%373,553
parentid<0.1%0
stackid<0.1%0
geoid100%373,553
statefp100%373,553
countyfp100%373,553
countyname100%373,553
cousubfp100%373,553
cousubname100%373,553
tractce100%373,553
tractname100%373,553
taxacctnum100%373,545
taxyear<0.1%0
taxdistrict99.8%372,672
usecode93.7%350,063
usedesc93.1%347,734
zoningcode100%373,420
zoningdesc<0.1%37
numbldgs100%373,552
numunits87.6%327,121
yearbuilt93.7%350,052
numfloors1.0%3,917
bldgsqft93.7%350,052
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue79.2%295,964
landvalue79.3%296,042
agvalue79.2%295,886
totalvalue79.2%295,886
taxacres93.6%349,820
calcarea100%373,553
saleamt<0.1%154
saledate<0.1%0
ownertype93.7%350,052
ownername93.7%350,052
owneraddr11.5%42,975
ownercity93.6%349,820
ownerstate93.6%349,792
ownerzip93.6%349,817
parceladdr99.9%373,356
parcelcity99.6%372,163
parcelstate100%373,553
parcelzip100%373,545
legaldesc92.0%343,515
township<0.1%0
section<0.1%0
qtrsection<0.1%0
range<0.1%0
plssdesc<0.1%0
book93.7%350,052
page93.7%350,052
block28.9%107,941
lot71.0%265,322
parceltype2.5%9,297
accesstype2.5%9,297
iucnclass0.8%2,876
placename6.7%25,022
placetype6.6%24,772
firmid100%373,548
firmdate100%373,548
fldzone100%373,548
zonesubty97.8%365,154
staticbfe1.2%4,506
elevmin7.3%27,200
elevmax7.3%27,200
elevavg7.3%27,200
fireplaces<0.1%0
heating<0.1%0
heatfuel<0.1%0
cooling<0.1%0
foundation<0.1%0
roofcover<0.1%0
siding<0.1%0
bldgtype<0.1%0
naicscode17.3%64,660
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated100%373,552
centroidx100%373,553
centroidy100%373,553
surfpointx100%373,553
surfpointy100%373,553
geom100%373,553
extras100%373,553
ownerlist93.0%347,330
placefp86.4%322,665
zoningurl<0.1%0

Schema mapping

How source columns from the acquired Baltimore 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 — Baltimore County, Maryland (24005) 1 entity · most recent acquisition per entity · generated 2026-08-15 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 parcel polyid acctid ciuse descciuse zoning bldg_units yearblt bldg_story sqftstrc nfmimpvl nfmlndvl nfmttlvl acres considr1 tradate ownadd1 ownadd2 owncity ownstate ownerzip address city zipcode legal1 legal2 legal3 dr1liber dr1folio block lot sdatwebadr geom desctown jurscode geogcode ooi resityp strtnum strtdir strtnam strttyp strtsfx strtunt addrtyp ownzip2 premsnum premsdir premsnam premstyp premcity premzip premzip2 towncode subdivsn dsubcode descsubd plat pltliber pltfolio section map grid znchgdat rzrealdat exclass descexcl lu desclu landarea luom width depth pfuw pfus pflw pfsp pfsu pfic pfih recind permittyp strugrad descgrad strucnst desccnst strustyl descstyl strubldg descbldg lastinsp lastassd assessor gr1libr1 gr1folo1 convey1 crtarcod fcmacode agfndarea entzndat entznassm plndevdat nprctstdat nprcarea nprcluom homqlcod homqldat ptype mdpvdate sdatdate polydate polyacres shape_starea__ shape_stlength__ parcelid parcelid2 taxacctnum usecode usedesc zoningcode numunits yearbuilt numfloors bldgsqft imprvalue landvalue totalvalue taxacres saleamt saledate owneraddr ownercity ownerstate ownerzip parceladdr parcelcity parcelstate parcelzip legaldesc book page block lot sourceurl 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 7.3% elevmin 7.3% elevmax 7.3% elevavg s_fld_haz_ar · FEMA NFHL 100% fldzone 97.8% zonesubty 1.2% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 100% numbldgs 79.2% agvalue 93.7% ownertype 93.7% ownername 93.0% ownerlist 86.4% placefp lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxacctnum taxdistrict usecode usedesc zoningcode numbldgs numunits yearbuilt numfloors bldgsqft imprvalue landvalue agvalue totalvalue taxacres calcarea saleamt saledate ownertype ownername owneraddr ownercity ownerstate ownerzip parceladdr parcelcity parcelstate parcelzip legaldesc book page block lot firmid firmdate fldzone zonesubty staticbfe elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras ownerlist placefp publish.parcel_layer columns not fed by these sources (32) — empty or below 50% fill in this county parentid, stackid, taxyear, zoningdesc, bedrooms, halfbaths, fullbaths, township, section, qtrsection, range, plssdesc, parceltype, accesstype iucnclass, placename, placetype, fireplaces, heating, heatfuel, cooling, foundation, roofcover, siding, bldgtype, naicscode, frsid, dfrurl caapermit, cwapermit, rcrapermit, zoningurl PARCEL 33 mapped · 4 transformed · 22 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL parcel polyid acctid ciuse descciuse zoning bldg_units yearblt bldg_story sqftstrc nfmimpvl nfmlndvl nfmttlvl acres considr1 tradate ownadd1 ownadd2 owncity ownstate ownerzip address city zipcode legal1 legal2 legal3 dr1liber dr1folio block lot sdatwebadr geom desctown jurscode geogcode ooi resityp strtnum strtdir strtnam strttyp strtsfx strtunt addrtyp ownzip2 premsnum premsdir premsnam premstyp premcity premzip premzip2 towncode subdivsn dsubcode descsubd plat pltliber pltfolio section map grid znchgdat rzrealdat exclass descexcl lu desclu landarea luom width depth pfuw pfus pflw pfsp pfsu pfic pfih recind permittyp strugrad descgrad strucnst desccnst strustyl descstyl strubldg descbldg lastinsp lastassd assessor gr1libr1 gr1folo1 convey1 crtarcod fcmacode agfndarea entzndat entznassm plndevdat nprctstdat nprcarea nprcluom homqlcod homqldat ptype mdpvdate sdatdate polydate polyacres shape_starea__ shape_stlength__ parcelid parcelid2 taxacctnum usecode usedesc zoningcode numunits yearbuilt numfloors bldgsqft imprvalue landvalue totalvalue taxacres saleamt saledate owneraddr NULLIF(concat_ws(' ', NULLIF(ownadd1, ''), NULLIF(ownadd2, ''))… ownercity ownerstate ownerzip parceladdr parcelcity parcelstate 'MD'::text parcelzip legaldesc NULLIF(concat_ws('; ', NULLIF(legal1, ''), NULLIF(legal2, ''), … book page block lot sourceurl geom taxdistrict extras ( json_build_object( 'jurscode', jurscode::text, 'geogcode', ge… not present in source — filled with NULL (22) taxyear, zoningdesc, numbldgs, bedrooms, halfbaths, fullbaths, agvalue, ownername, township, section, qtrsection, range, plssdesc, updated parentid, fireplaces, heating, cooling, foundation, roofcover, siding, heatfuel

Neighboring counties

Parcel data for counties bordering Baltimore County:

Frequently asked questions

Where can I find Baltimore County, MD parcel and GIS data?

Land Records publishes a Baltimore County, MD 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 Baltimore County, MD dataset as a GeoPackage or CSV.

How many parcels are in Baltimore County, MD?

The current dataset contains 373,553 parcel records for Baltimore County, MD, each with its boundary geometry and assessor attributes.

What is the FIPS code for Baltimore County, MD?

The FIPS code for Baltimore County, MD is 24005.

What information does each Baltimore County, MD parcel record include?

Each Baltimore County, MD 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 Baltimore County, MD parcel data free?

You can preview Baltimore County, MD 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