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Frederick County, MD Parcels & GIS Data

Frederick County, MD parcel data: 123,808 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Frederick County, Maryland parcel data covering 123,808 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 123,808 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%123,808
parcelid95.5%118,242
parcelid261.5%76,100
ogparcelid98.0%121,333
ogparcelid2<0.1%56
parentid<0.1%0
stackid<0.1%0
geoid100%123,808
statefp100%123,808
countyfp100%123,808
countyname100%123,808
cousubfp100%123,808
cousubname100%123,808
tractce100%123,808
tractname100%123,808
taxacctnum85.3%105,637
taxyear<0.1%9
taxdistrict<0.1%53
usecode98.0%121,313
usedesc<0.1%8
zoningcode<0.1%8
zoningdesc<0.1%8
numbldgs<0.1%26
numunits<0.1%8
yearbuilt<0.1%8
numfloors<0.1%8
bldgsqft<0.1%8
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue<0.1%5
landvalue<0.1%8
agvalue<0.1%0
totalvalue<0.1%0
taxacres100%123,793
calcarea100%123,808
saleamt<0.1%5
saledate<0.1%7
ownertype<0.1%53
ownername<0.1%53
owneraddr<0.1%53
ownercity<0.1%53
ownerstate<0.1%53
ownerzip<0.1%53
parceladdr84.5%104,622
parcelcity75.8%93,875
parcelstate100%123,808
parcelzip100%123,808
legaldesc<0.1%53
township<0.1%0
section<0.1%0
qtrsection<0.1%0
range<0.1%0
plssdesc<0.1%0
book96.9%120,017
page97.0%120,101
block76.1%94,170
lot96.8%119,868
parceltype2.1%2,561
accesstype2.1%2,561
iucnclass1.0%1,256
placename5.4%6,634
placetype5.3%6,546
firmid100%123,808
firmdate100%123,808
fldzone100%123,808
zonesubty98.5%121,985
staticbfe<0.1%13
elevmin99.1%122,712
elevmax99.1%122,712
elevavg99.1%122,712
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
naicscode5.4%6,630
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated42.5%52,589
centroidx100%123,808
centroidy100%123,808
surfpointx100%123,808
surfpointy100%123,808
geom100%123,808
extras<0.1%23
ownerlist<0.1%0

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) 1 entity · most recent acquisition per entity · generated 2026-07-25 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 determined · ground truth 100% lrid 100% geoid 100% statefp 100% countyfp 100% countyname 100% cousubfp 100% cousubname 100% tractce 100% tractname 0.0% taxyear 42.5% updated geom · derived from geometry geom dem.us_1m · USGS 1m DEM 99.1% elevmin 99.1% elevmax 99.1% elevavg s_fld_haz_ar · FEMA NFHL 100% fldzone 98.5% zonesubty 0.0% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 75.8% parcelcity 100% parcelstate 100% parcelzip 96.9% book lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxacctnum taxyear taxdistrict usecode zoningcode taxacres calcarea parceladdr parcelcity parcelstate parcelzip legaldesc book page block lot firmid firmdate fldzone zonesubty staticbfe elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras publish.parcel_layer columns not fed by these sources (49) — empty or below 50% fill in this county parentid, stackid, usedesc, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths, imprvalue landvalue, agvalue, totalvalue, saleamt, saledate, ownertype, ownername, owneraddr, ownercity, ownerstate, ownerzip, 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 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

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 123,808 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