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Carroll County, MD Parcels & GIS Data

Carroll County, MD parcel data: 76,870 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Carroll County, Maryland parcel data covering 76,870 property records.

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

Carroll County is located in the U.S. state of Maryland. As of the 2020 United States census, the population was 172,891. Its county seat is Westminster.

FIPS 24013

Official county website: http://www.carr.org

The FIPS code for Carroll County is 24013.

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Attribute coverage

Carroll County contains 76,870 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%76,870
parcelid90.8%69,786
parcelid2100%76,868
ogparcelid90.8%69,789
ogparcelid2100%76,870
parentid<0.1%0
stackid<0.1%0
geoid100%76,870
statefp100%76,870
countyfp100%76,870
countyname100%76,870
cousubfp100%76,870
cousubname100%76,870
tractce100%76,870
tractname100%76,870
taxacctnum99.9%76,789
taxyear<0.1%0
taxdistrict25.3%19,437
usecode6.2%4,789
usedesc6.2%4,789
zoningcode47.7%36,703
zoningdesc51.8%39,821
numbldgs0.2%180
numunits80.6%61,966
yearbuilt79.0%60,730
numfloors3.0%2,322
bldgsqft78.5%60,329
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue81.4%62,557
landvalue88.8%68,260
agvalue<0.1%0
totalvalue88.8%68,260
taxacres87.1%66,992
calcarea100%76,870
saleamt59.5%45,744
saledate85.4%65,633
ownertype<0.1%3
ownername<0.1%8
owneraddr90.1%69,268
ownercity90.2%69,323
ownerstate90.2%69,320
ownerzip90.2%69,320
parceladdr81.4%62,592
parcelcity90.4%69,525
parcelstate100%76,870
parcelzip100%76,870
legaldesc90.2%69,318
township<0.1%0
section<0.1%0
qtrsection<0.1%0
range<0.1%0
plssdesc<0.1%0
book89.9%69,123
page89.9%69,123
block2.9%2,256
lot60.1%46,192
parceltype3.3%2,573
accesstype3.3%2,573
iucnclass1.5%1,120
placename6.8%5,213
placetype6.7%5,160
firmid100%76,870
firmdate100%76,870
fldzone100%76,870
zonesubty98.7%75,907
staticbfe<0.1%0
elevmin99.2%76,274
elevmax99.2%76,274
elevavg99.2%76,274
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
naicscode3.6%2,759
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated99.6%76,568
centroidx100%76,870
centroidy100%76,870
surfpointx100%76,870
surfpointy100%76,870
geom100%76,870
extras100%76,870
ownerlist<0.1%3
placefp44.5%34,232
zoningurl8.9%6,820
lbcsactivity97.3%74,790
lbcsfunction97.3%74,788
lbcstype90.2%69,319
lbcscharacter99.1%76,153
lbcsownership3.8%2,928
sourceurl90.8%69,807

Schema mapping

How source columns from the acquired Carroll 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 — Carroll County, Maryland (24013) 2 entities · most recent acquisition per entity · generated 2026-10-04 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 ZONING genzone source geom jurscode municipality_name abbreviation updateyr acres genzone_cat shape_starea__ shape_stlength__ globalid created_user created_date last_edited_user last_edited_date zoningcode sourceurl geom 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 99.2% elevmin 99.2% elevmax 99.2% elevavg s_fld_haz_ar · FEMA NFHL 100% fldzone 98.7% zonesubty 100% firmdate 100% firmid supplemented · derived / other pipelines 100% taxacctnum 51.8% zoningdesc 80.6% numunits 79.0% yearbuilt 78.5% bldgsqft 81.4% imprvalue 88.8% landvalue 88.8% totalvalue 87.1% taxacres 59.5% saleamt 85.4% saledate 90.2% legaldesc 89.9% book 89.9% page 60.1% lot 97.3% lbcsactivity 97.3% lbcsfunction 90.2% lbcstype 99.1% lbcscharacter lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxacctnum zoningcode zoningdesc numunits yearbuilt bldgsqft imprvalue landvalue totalvalue taxacres calcarea saleamt saledate ownertype ownername owneraddr ownercity ownerstate ownerzip parceladdr parcelcity parcelstate parcelzip legaldesc book page lot firmid firmdate fldzone zonesubty elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras lbcsactivity lbcsfunction lbcstype lbcscharacter sourceurl publish.parcel_layer columns not fed by these sources (42) — empty or below 50% fill in this county parentid, stackid, taxyear, taxdistrict, usecode, usedesc, numbldgs, numfloors, bedrooms, halfbaths, fullbaths, agvalue, township, section qtrsection, range, plssdesc, block, parceltype, accesstype, iucnclass, placename, placetype, staticbfe, fireplaces, heating, heatfuel, cooling foundation, roofcover, siding, bldgtype, naicscode, frsid, dfrurl, caapermit, cwapermit, rcrapermit, ownerlist, placefp, zoningurl lbcsownership 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 ZONING 4 mapped · 1 transformed · 6 unmapped (NULL) SOURCE COLUMNS HARMONIZED → ZONING genzone source geom jurscode municipality_name abbreviation updateyr acres genzone_cat shape_starea__ shape_stlength__ globalid created_user created_date last_edited_user last_edited_date zoningcode sourceurl geom extras json_build_object( 'jurscode', jurscode::text, 'municipality_na… not present in source — filled with NULL (6) zoningdesc, zoningtype, ordinance, setbacks, restrictions, notes

Neighboring counties

Parcel data for counties bordering Carroll County:

Frequently asked questions

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

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

How many parcels are in Carroll County, MD?

The current dataset contains 76,870 parcel records for Carroll County, MD, each with its boundary geometry and assessor attributes.

What is the FIPS code for Carroll County, MD?

The FIPS code for Carroll County, MD is 24013.

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

Each Carroll 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 Carroll County, MD parcel data free?

You can preview Carroll 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.

Does Carroll County, MD have an official GIS or property records website?

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

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated