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Frederick County, MD Parcels & GIS Data

Frederick County, MD parcel data: 125,363 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Frederick County, Maryland parcel data covering 125,363 property records.

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

Frederick County is located in Maryland, United States. As of the 2020 U.S. census, the population was 271,717. The county seat is Frederick.

FIPS 24021

Official county website: http://FrederickCountyMD.gov/

The FIPS code for Frederick County is 24021.

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Attribute coverage

Frederick County contains 125,363 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%125,363
parcelid99.1%124,177
parcelid299.2%124,335
ogparcelid99.2%124,320
ogparcelid298.7%123,707
parentid<0.1%0
stackid<0.1%0
geoid100%125,363
statefp100%125,363
countyfp100%125,363
countyname100%125,363
cousubfp100%125,363
cousubname100%125,363
tractce100%125,363
tractname100%125,363
taxacctnum95.9%120,204
taxyear<0.1%1
taxdistrict32.9%41,221
usecode95.4%119,570
usedesc5.0%6,315
zoningcode1.1%1,399
zoningdesc91.1%114,165
numbldgs1.3%1,656
numunits76.3%95,686
yearbuilt76.1%95,410
numfloors2.6%3,261
bldgsqft74.4%93,218
bedrooms<0.1%1
halfbaths<0.1%1
fullbaths<0.1%1
imprvalue76.9%96,401
landvalue82.6%103,549
agvalue<0.1%0
totalvalue82.6%103,556
taxacres98.7%123,728
calcarea100%125,363
saleamt59.6%74,761
saledate79.6%99,823
ownertype<0.1%1
ownername<0.1%0
owneraddr83.9%105,125
ownercity83.9%105,193
ownerstate83.9%105,181
ownerzip83.9%105,189
parceladdr84.7%106,198
parcelcity85.3%106,913
parcelstate100%125,363
parcelzip100%125,363
legaldesc83.9%105,193
township<0.1%0
section<0.1%0
qtrsection<0.1%0
range<0.1%0
plssdesc<0.1%0
book98.8%123,839
page98.8%123,840
block77.4%96,977
lot95.3%119,448
parceltype2.1%2,633
accesstype2.1%2,633
iucnclass1.0%1,305
placename5.5%6,837
placetype5.4%6,747
firmid100%125,356
firmdate100%125,356
fldzone100%125,356
zonesubty98.5%123,529
staticbfe<0.1%14
elevmin99.3%124,443
elevmax99.3%124,443
elevavg99.3%124,443
fireplaces<0.1%0
heating<0.1%1
heatfuel<0.1%1
cooling<0.1%1
foundation<0.1%0
roofcover<0.1%0
siding<0.1%0
bldgtype<0.1%0
naicscode3.7%4,596
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated100%125,359
centroidx100%125,363
centroidy100%125,363
surfpointx100%125,363
surfpointy100%125,363
geom100%125,363
extras100%125,363
ownerlist<0.1%0
placefp67.7%84,822
zoningurl1.1%1,435
lbcsactivity92.2%115,639
lbcsfunction92.2%115,609
lbcstype91.9%115,172
lbcscharacter92.5%115,949
lbcsownership2.5%3,094
sourceurl85.2%106,791

Schema mapping

How source columns from the acquired Frederick 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 — Frederick County, Maryland (24021) 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 pin parcel tax_acct landuse zoning calc_acre address bookpage page taxmap lot sdat geom elem_dist 24 cols ⇢ parcelid parcelid2 taxacctnum usecode zoningcode taxacres parceladdr legaldesc page block lot sourceurl geom taxdistrict 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 0.0% taxyear 100% updated geom · derived from geometry geom dem.us_1m · USGS 1m DEM 99.3% elevmin 99.3% elevmax 99.3% elevavg s_fld_haz_ar · FEMA NFHL 100% fldzone 98.5% zonesubty 0.0% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 91.1% zoningdesc 76.3% numunits 76.1% yearbuilt 74.4% bldgsqft 76.9% imprvalue 82.6% landvalue 82.6% totalvalue 59.6% saleamt 79.6% saledate 83.9% owneraddr 83.9% ownercity 83.9% ownerstate 83.9% ownerzip 85.3% parcelcity 100% parcelstate 100% parcelzip 98.8% book 67.7% placefp 92.2% lbcsactivity 92.2% lbcsfunction 91.9% lbcstype 92.5% lbcscharacter lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxacctnum taxyear taxdistrict usecode zoningcode zoningdesc numunits yearbuilt bldgsqft imprvalue landvalue totalvalue taxacres calcarea saleamt saledate 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 placefp lbcsactivity lbcsfunction lbcstype lbcscharacter sourceurl publish.parcel_layer columns not fed by these sources (38) — empty or below 50% fill in this county parentid, stackid, usedesc, numbldgs, numfloors, bedrooms, halfbaths, fullbaths, agvalue, ownertype, ownername, township, section, qtrsection range, plssdesc, parceltype, accesstype, iucnclass, placename, placetype, fireplaces, heating, heatfuel, cooling, foundation, roofcover, siding bldgtype, naicscode, frsid, dfrurl, caapermit, cwapermit, rcrapermit, ownerlist, zoningurl, lbcsownership PARCEL 14 mapped · 24 kept in extras · 40 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL pin parcel tax_acct landuse zoning calc_acre address bookpage page taxmap lot sdat geom elem_dist parcelid parcelid2 taxacctnum usecode zoningcode taxacres parceladdr legaldesc page block lot sourceurl geom taxdistrict extras · 24 source columns preserved as json mapping_co, ftr_code, hotlink, acct, num, dir, name, suf pdir, overlay_1, overlay_2, nac, image_, mid_dist, high_dist globalid, sub, masterplan, improvementplan, finalsiteplan preliminarysubplan, fullname, electiondistrict shape_starea__ extras not present in source — filled with NULL (40) taxyear, usedesc, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths, imprvalue, landvalue, agvalue totalvalue, saleamt, saledate, ownername, owneraddr, ownercity, ownerstate, ownerzip, parcelcity, parcelstate, parcelzip, township, section qtrsection, range, plssdesc, book, updated, 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 Frederick County:

Frequently asked questions

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

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

How many parcels are in Frederick County, MD?

The current dataset contains 125,363 parcel records for Frederick County, MD, each with its boundary geometry and assessor attributes.

What is the FIPS code for Frederick County, MD?

The FIPS code for Frederick County, MD is 24021.

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

Each Frederick 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 Frederick County, MD parcel data free?

You can preview Frederick 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 Frederick County, MD have an official GIS or property records website?

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

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated