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Calvert County, MD Parcels & GIS Data

Calvert County, MD parcel data: 45,921 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Calvert County, Maryland parcel data covering 45,921 property records.

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

Calvert County is a county located in the U.S. state of Maryland. As of the 2020 United States census, its population was 92,783. Its county seat is Prince Frederick.

FIPS 24009

Official county website: http://www.co.cal.md.us/

The FIPS code for Calvert County is 24009.

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Attribute coverage

Calvert County contains 45,921 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%45,921
parcelid95.4%43,803
parcelid298.7%45,346
ogparcelid97.3%44,694
ogparcelid299.0%45,464
parentid<0.1%0
stackid<0.1%0
geoid100%45,921
statefp100%45,921
countyfp100%45,921
countyname100%45,921
cousubfp100%45,921
cousubname100%45,921
tractce100%45,921
tractname100%45,921
taxacctnum100%45,921
taxyear100%45,921
taxdistrict92.4%42,412
usecode93.6%42,998
usedesc95.8%43,974
zoningcode25.5%11,700
zoningdesc98.3%45,132
numbldgs100%45,921
numunits77.6%35,640
yearbuilt75.2%34,539
numfloors2.6%1,185
bldgsqft74.5%34,230
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue77.5%35,595
landvalue89.9%41,297
agvalue0.1%26
totalvalue90.3%41,478
taxacres97.6%44,838
calcarea100%45,921
saleamt59.8%27,477
saledate88.2%40,515
ownertype2.8%1,284
ownername91.5%42,019
owneraddr93.2%42,787
ownercity93.2%42,793
ownerstate93.2%42,779
ownerzip93.2%42,789
parceladdr96.3%44,228
parcelcity97.2%44,634
parcelstate100%45,921
parcelzip100%45,921
legaldesc96.5%44,308
township<0.1%0
section<0.1%0
qtrsection<0.1%0
range<0.1%0
plssdesc<0.1%0
book98.0%44,985
page98.0%44,988
block94.3%43,292
lot97.3%44,696
parceltype2.5%1,131
accesstype2.5%1,145
iucnclass1.3%581
placename5.3%2,437
placetype5.3%2,438
firmid100%45,921
firmdate100%45,921
fldzone100%45,921
zonesubty96.2%44,154
staticbfe3.4%1,574
elevmin0.1%37
elevmax0.1%37
elevavg0.1%37
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
naicscode3.3%1,505
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated100%45,921
centroidx100%45,921
centroidy100%45,921
surfpointx100%45,921
surfpointy100%45,921
geom100%45,921
extras100%45,921
ownerlist2.7%1,251
placefp46.5%21,350
zoningurl25.6%11,737
lbcsactivity98.5%45,236
lbcsfunction98.5%45,231
lbcstype99.7%45,797
lbcscharacter98.6%45,285
lbcsownership91.8%42,148
sourceurl98.0%45,010

Schema mapping

How source columns from the acquired Calvert 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 — Calvert County, Maryland (24009) 2 entities · most recent acquisition per entity · generated 2026-10-10 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 prclid parcel acctid sc_cur assessedus statedarea legalowner legaldesc section liber folio block lot last_edited_date sdatlink geom map 42 cols ⇢ parcelid parcelid2 taxacctnum usecode usedesc taxacres ownername legaldesc section book page block lot updated 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 100% taxyear geom · derived from geometry geom dem.us_1m · USGS 1m DEM 0.1% elevmin 0.1% elevmax 0.1% elevavg s_fld_haz_ar · FEMA NFHL 100% fldzone 96.2% zonesubty 3.4% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 98.3% zoningdesc 100% numbldgs 77.6% numunits 75.2% yearbuilt 74.5% bldgsqft 77.5% imprvalue 89.9% landvalue 90.3% totalvalue 59.8% saleamt 88.2% saledate 93.2% owneraddr 93.2% ownercity 93.2% ownerstate 93.2% ownerzip 96.3% parceladdr 97.2% parcelcity 100% parcelstate 100% parcelzip 98.5% lbcsactivity 98.5% lbcsfunction 100% lbcstype 98.6% lbcscharacter 91.8% lbcsownership lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxacctnum taxyear taxdistrict usecode usedesc zoningcode zoningdesc numbldgs numunits yearbuilt bldgsqft imprvalue landvalue totalvalue taxacres calcarea saleamt saledate ownertype ownername owneraddr ownercity ownerstate ownerzip parceladdr parcelcity parcelstate parcelzip legaldesc section book page block lot firmid firmdate fldzone zonesubty staticbfe elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras lbcsactivity lbcsfunction lbcstype lbcscharacter lbcsownership sourceurl publish.parcel_layer columns not fed by these sources (33) — empty or below 50% fill in this county parentid, stackid, numfloors, bedrooms, halfbaths, fullbaths, agvalue, township, qtrsection, range, plssdesc, parceltype, accesstype, iucnclass placename, placetype, fireplaces, heating, heatfuel, cooling, foundation, roofcover, siding, bldgtype, naicscode, frsid, dfrurl, caapermit cwapermit, rcrapermit, ownerlist, placefp, zoningurl PARCEL 17 mapped · 42 kept in extras · 37 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL prclid parcel acctid sc_cur assessedus statedarea legalowner legaldesc section liber folio block lot last_edited_date sdatlink geom map parcelid parcelid2 taxacctnum usecode usedesc taxacres ownername legaldesc section book page block lot updated sourceurl geom taxdistrict extras · 42 source columns preserved as json name, createdbyrecord, retiredbyrecord, statedareaunit calculatedarea, miscloseratio, misclosedistance, isseed validationstatus, type, legalstartdate, legalenddate accuracy, unclosed, misclosebearing, backsightbearing exempt_cla, exempt_nam, topomaplin, zoningmapl, watermapli sewermapli, created_us, created_da, last_edite, last_edi_1 parcelclas, developmen, row_name, row_type, row_co_id row_sha_plat, row_comments, row_class, row_display originalfeatureoid, originalstatedarea, created_user created_date, last_edited_user, wc_appr, wc_cur extras not present in source — filled with NULL (37) taxyear, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths, imprvalue, landvalue agvalue, totalvalue, saleamt, saledate, owneraddr, ownercity, ownerstate, ownerzip, parceladdr, parcelcity, parcelstate, parcelzip, township qtrsection, range, plssdesc, 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 Calvert County:

Frequently asked questions

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

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

How many parcels are in Calvert County, MD?

The current dataset contains 45,921 parcel records for Calvert County, MD, each with its boundary geometry and assessor attributes.

What is the FIPS code for Calvert County, MD?

The FIPS code for Calvert County, MD is 24009.

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

Each Calvert 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 Calvert County, MD parcel data free?

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

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

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated