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Frederick County, MD Parcels & GIS Data

Frederick County, MD parcel data: 123,899 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Frederick County, Maryland parcel data covering 123,899 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 123,899 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%123,899
parcelid95.5%118,375
parcelid261.4%76,104
ogparcelid98.0%121,466
ogparcelid2<0.1%0
parentid<0.1%0
stackid<0.1%0
geoid100%123,899
statefp100%123,899
countyfp100%123,899
countyname100%123,899
cousubfp100%123,899
cousubname100%123,899
tractce100%123,899
tractname100%123,899
taxacctnum85.2%105,618
taxyear<0.1%0
taxdistrict<0.1%0
usecode98.0%121,439
usedesc<0.1%0
zoningcode100%123,875
zoningdesc13.0%16,115
numbldgs<0.1%0
numunits<0.1%0
yearbuilt<0.1%0
numfloors<0.1%0
bldgsqft<0.1%0
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue<0.1%0
landvalue<0.1%0
agvalue<0.1%0
totalvalue<0.1%0
taxacres100%123,899
calcarea100%123,899
saleamt<0.1%0
saledate<0.1%0
ownertype<0.1%0
ownername<0.1%0
owneraddr<0.1%0
ownercity<0.1%0
ownerstate<0.1%0
ownerzip<0.1%0
parceladdr99.6%123,418
parcelcity98.6%122,136
parcelstate100%123,899
parcelzip100%123,899
legaldesc<0.1%0
township<0.1%0
section<0.1%0
qtrsection<0.1%0
range<0.1%0
plssdesc<0.1%0
book97.0%120,194
page97.1%120,278
block76.2%94,384
lot96.9%120,081
parceltype2.1%2,619
accesstype2.1%2,619
iucnclass1.1%1,304
placename5.4%6,696
placetype5.3%6,607
firmid100%123,899
firmdate100%123,899
fldzone100%123,899
zonesubty98.5%122,065
staticbfe<0.1%13
elevmin99.2%122,914
elevmax99.2%122,914
elevavg99.2%122,914
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%6,696
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated100%123,895
centroidx100%123,899
centroidy100%123,899
surfpointx100%123,899
surfpointy100%123,899
geom100%123,899
extras<0.1%0
ownerlist<0.1%0
placefp67.4%83,468
zoningurl<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 2026-08-30 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 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 98.5% zonesubty 0.0% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 98.6% parcelcity 100% parcelstate 100% parcelzip 97.0% book 67.4% placefp lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxacctnum 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 placefp publish.parcel_layer columns not fed by these sources (51) — empty or below 50% fill in this county parentid, stackid, taxyear, 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, zoningurl 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 123,899 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