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Baltimore County, MD Parcels & GIS Data

Baltimore County, MD parcel data: 373,554 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Baltimore County, Maryland parcel data covering 373,554 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 373,554 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%373,554
parcelid100%373,537
parcelid2100%373,552
ogparcelid100%373,539
ogparcelid2100%373,554
parentid<0.1%0
stackid<0.1%0
geoid100%373,554
statefp100%373,554
countyfp100%373,554
countyname100%373,554
cousubfp100%373,554
cousubname100%373,554
tractce100%373,554
tractname100%373,554
taxacctnum100%373,546
taxyear<0.1%1
taxdistrict99.8%372,672
usecode93.7%350,064
usedesc93.1%347,735
zoningcode0.1%233
zoningdesc<0.1%0
numbldgs100%373,553
numunits87.6%327,122
yearbuilt93.7%350,053
numfloors1.0%3,918
bldgsqft93.7%350,053
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue79.2%295,965
landvalue79.3%296,043
agvalue79.2%295,887
totalvalue79.2%295,887
taxacres93.6%349,821
calcarea100%373,554
saleamt<0.1%155
saledate<0.1%0
ownertype93.7%350,053
ownername93.7%350,053
owneraddr11.5%42,976
ownercity93.6%349,821
ownerstate93.6%349,793
ownerzip93.6%349,818
parceladdr99.9%373,354
parcelcity99.6%372,161
parcelstate100%373,554
parcelzip100%373,546
legaldesc92.0%343,516
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%107,942
lot71.0%265,323
parceltype2.5%9,297
accesstype2.5%9,297
iucnclass0.8%2,876
placename6.7%25,022
placetype6.6%24,772
firmid100%373,549
firmdate100%373,549
fldzone100%373,549
zonesubty97.8%365,155
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%64,661
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated100%373,553
centroidx100%373,554
centroidy100%373,554
surfpointx100%373,554
surfpointy100%373,554
geom100%373,554
extras100%373,554
lrversion100%373,554

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 2026-07-18 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 apn search_apn owner_firstname owner_lastname owner_st_number owner_st_dir owner_st_name owner_st_type owner_st_unit owner_city owner_state owner_zip site_st_number site_st_dir site_st_name site_st_type site_st_unit site_city site_state site_zip geom 7 cols ⇢ parcelid parcelid2 ownername owneraddr ownercity ownerstate ownerzip parceladdr parcelcity parcelstate parcelzip geom extras determined · ground truth 100% lrid 100% geoid 100% statefp 100% countyfp 100% countyname 100% cousubfp 100% cousubname 100% tractce 100% tractname 0.0% taxyear 100% updated 100% lrversion 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% taxacctnum 100% taxdistrict 93.7% usecode 93.1% usedesc 100% numbldgs 87.6% numunits 93.7% yearbuilt 93.7% bldgsqft 79.2% imprvalue 79.3% landvalue 79.2% agvalue 79.2% totalvalue 93.6% taxacres 92.0% legaldesc 93.7% book 93.7% page 71.0% lot lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxacctnum taxyear taxdistrict usecode usedesc numbldgs numunits yearbuilt bldgsqft imprvalue landvalue agvalue totalvalue taxacres calcarea ownertype ownername owneraddr ownercity ownerstate ownerzip parceladdr parcelcity parcelstate parcelzip legaldesc book page lot firmid firmdate fldzone zonesubty staticbfe elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras lrversion publish.parcel_layer columns not fed by these sources (35) — empty or below 50% fill in this county parentid, stackid, zoningcode, zoningdesc, numfloors, bedrooms, halfbaths, fullbaths, saleamt, saledate, township, section, qtrsection, range plssdesc, block, parceltype, accesstype, iucnclass, placename, placetype, fireplaces, heating, heatfuel, cooling, foundation, roofcover, siding bldgtype, naicscode, frsid, dfrurl, caapermit, cwapermit, rcrapermit PARCEL 12 mapped · 3 transformed · 7 kept in extras · 42 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL apn search_apn owner_firstname owner_lastname owner_st_number owner_st_dir owner_st_name owner_st_type owner_st_unit owner_city owner_state owner_zip site_st_number site_st_dir site_st_name site_st_type site_st_unit site_city site_state site_zip geom parcelid parcelid2 ownername CAST(COALESCE(owner_firstname, '') || ' ' || COALESCE(owner_las… owneraddr CAST(COALESCE(owner_st_number, '') || ' ' || COALESCE(owner_st_… ownercity ownerstate ownerzip parceladdr CAST(COALESCE(site_st_number, '') || ' ' || COALESCE(site_st_di… parcelcity parcelstate parcelzip geom extras · 7 source columns preserved as json site_st_post_dir, clientid, shape_starea__, shape_stlength__ stagingid, oldglobalid, globalid extras not present in source — filled with NULL (42) taxacctnum, taxyear, usecode, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths fullbaths, imprvalue, landvalue, agvalue, totalvalue, taxacres, saleamt, saledate, legaldesc, township, section, qtrsection, range, plssdesc book, page, block, lot, updated, sourceurl, taxdistrict, 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 373,554 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