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Howard County, MD Parcels & GIS Data

Howard County, MD parcel data: 85,042 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Howard County, Maryland parcel data covering 85,042 property records.

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

Howard County is located in the U.S. state of Maryland. As of the 2020 census, the population is 334,529. Since there are no incorporated municipalities, there is no incorporated county seat either.

FIPS 24027

Official county website: http://www.howardcountymd.gov/

The FIPS code for Howard County is 24027.

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Attribute coverage

Howard County contains 85,042 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%85,042
parcelid94.6%80,417
parcelid294.6%80,418
ogparcelid100%85,034
ogparcelid2100%85,035
parentid<0.1%0
stackid<0.1%0
geoid100%85,042
statefp100%85,042
countyfp100%85,042
countyname100%85,042
cousubfp100%85,042
cousubname100%85,042
tractce100%85,042
tractname100%85,042
taxacctnum<0.1%23
taxyear<0.1%3
taxdistrict<0.1%14
usecode<0.1%8
usedesc<0.1%8
zoningcode<0.1%3
zoningdesc<0.1%3
numbldgs100%85,042
numunits<0.1%3
yearbuilt<0.1%8
numfloors7.2%6,138
bldgsqft<0.1%8
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue<0.1%0
landvalue<0.1%3
agvalue<0.1%0
totalvalue<0.1%0
taxacres<0.1%8
calcarea100%85,042
saleamt<0.1%2
saledate<0.1%2
ownertype94.9%80,684
ownername94.9%80,684
owneraddr92.4%78,568
ownercity94.9%80,684
ownerstate94.9%80,684
ownerzip94.9%80,680
parceladdr99.9%84,966
parcelcity99.8%84,895
parcelstate100%85,042
parcelzip100%85,042
legaldesc<0.1%8
township<0.1%0
section<0.1%0
qtrsection<0.1%0
range<0.1%0
plssdesc<0.1%0
book<0.1%8
page<0.1%8
block<0.1%0
lot<0.1%0
parceltype5.3%4,532
accesstype5.3%4,532
iucnclass1.3%1,098
placename8.6%7,334
placetype8.5%7,266
firmid100%85,039
firmdate100%85,039
fldzone100%85,039
zonesubty98.8%83,995
staticbfe<0.1%0
elevmin99.8%84,874
elevmax99.8%84,874
elevavg99.8%84,874
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
naicscode13.2%11,186
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated100%85,042
centroidx100%85,042
centroidy100%85,042
surfpointx100%85,042
surfpointy100%85,042
geom100%85,042
extras100%85,042
ownerlist94.0%79,913

Schema mapping

How source columns from the acquired Howard 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 — Howard County, Maryland (24027) 1 entity · most recent acquisition per entity · generated 2026-08-08 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 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 100% elevmin 100% elevmax 100% elevavg s_fld_haz_ar · FEMA NFHL 100% fldzone 98.8% zonesubty 100% firmdate 100% firmid supplemented · derived / other pipelines 100% numbldgs 94.0% ownerlist lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxyear numbldgs calcarea ownertype ownername owneraddr ownercity ownerstate ownerzip parceladdr parcelcity parcelstate parcelzip firmid firmdate fldzone zonesubty elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras ownerlist publish.parcel_layer columns not fed by these sources (52) — empty or below 50% fill in this county parentid, stackid, taxacctnum, taxdistrict, usecode, usedesc, zoningcode, zoningdesc, numunits, yearbuilt, numfloors, bldgsqft, bedrooms halfbaths, fullbaths, imprvalue, landvalue, agvalue, totalvalue, taxacres, saleamt, saledate, legaldesc, township, section, qtrsection, range plssdesc, book, page, block, lot, parceltype, accesstype, iucnclass, placename, placetype, staticbfe, fireplaces, heating, heatfuel, cooling foundation, roofcover, siding, bldgtype, naicscode, frsid, dfrurl, caapermit, cwapermit, rcrapermit 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

Neighboring counties

Parcel data for counties bordering Howard County:

Frequently asked questions

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

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

How many parcels are in Howard County, MD?

The current dataset contains 85,042 parcel records for Howard County, MD, each with its boundary geometry and assessor attributes.

What is the FIPS code for Howard County, MD?

The FIPS code for Howard County, MD is 24027.

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

Each Howard 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 Howard County, MD parcel data free?

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

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

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated