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Howard County, MD Parcels & GIS Data

Howard County, MD parcel data: 100,441 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Howard County, Maryland parcel data covering 100,441 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 100,441 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%100,441
parcelid97.5%97,979
parcelid2100%100,441
ogparcelid97.8%98,259
ogparcelid2100%100,441
parentid<0.1%0
stackid<0.1%0
geoid100%100,441
statefp100%100,441
countyfp100%100,441
countyname100%100,441
cousubfp100%100,441
cousubname100%100,441
tractce100%100,441
tractname100%100,441
taxacctnum97.4%97,831
taxyear<0.1%0
taxdistrict<0.1%1
usecode7.1%7,119
usedesc7.1%7,119
zoningcode100%100,420
zoningdesc<0.1%32
numbldgs<0.1%0
numunits88.8%89,216
yearbuilt88.8%89,186
numfloors2.4%2,445
bldgsqft88.6%88,989
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue89.2%89,639
landvalue93.5%93,905
agvalue<0.1%0
totalvalue93.5%93,905
taxacres89.2%89,596
calcarea100%100,441
saleamt68.3%68,624
saledate93.4%93,789
ownertype<0.1%0
ownername57.5%57,765
owneraddr97.8%98,259
ownercity97.8%98,265
ownerstate97.8%98,262
ownerzip97.8%98,262
parceladdr94.7%95,083
parcelcity97.9%98,294
parcelstate100%100,441
parcelzip100%100,441
legaldesc97.3%97,760
township<0.1%0
section<0.1%0
qtrsection<0.1%0
range<0.1%0
plssdesc<0.1%0
book96.2%96,630
page96.2%96,630
block5.5%5,525
lot90.5%90,904
parceltype5.0%5,011
accesstype5.0%5,011
iucnclass1.3%1,355
placename8.1%8,133
placetype8.0%8,056
firmid100%100,437
firmdate100%100,437
fldzone100%100,437
zonesubty98.9%99,360
staticbfe<0.1%0
elevmin99.8%100,254
elevmax99.8%100,254
elevavg99.8%100,254
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
naicscode3.2%3,255
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated100%100,422
centroidx100%100,441
centroidy100%100,441
surfpointx100%100,441
surfpointy100%100,441
geom100%100,441
extras100%100,441
ownerlist<0.1%0
placefp81.9%82,233
zoningurl96.8%97,250
lbcsactivity50.6%50,843
lbcsfunction50.6%50,839
lbcstype50.2%50,452
lbcscharacter96.1%96,502
lbcsownership57.4%57,618
sourceurl97.4%97,810

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) 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 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 ZONING geom zone geom zoningcode 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 100% elevmin 100% elevmax 100% elevavg s_fld_haz_ar · FEMA NFHL 100% fldzone 98.9% zonesubty 100% firmdate 100% firmid supplemented · derived / other pipelines 97.4% taxacctnum 88.8% numunits 88.8% yearbuilt 88.6% bldgsqft 89.2% imprvalue 93.5% landvalue 93.5% totalvalue 89.2% taxacres 68.3% saleamt 93.4% saledate 97.3% legaldesc 96.2% book 96.2% page 90.5% lot 81.9% placefp 96.8% zoningurl 50.6% lbcsactivity 50.6% lbcsfunction 50.2% lbcstype 96.1% lbcscharacter 57.4% lbcsownership 97.4% sourceurl lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxacctnum zoningcode numunits yearbuilt bldgsqft imprvalue landvalue totalvalue taxacres calcarea saleamt saledate ownertype ownername owneraddr ownercity ownerstate ownerzip parceladdr parcelcity parcelstate parcelzip legaldesc book page lot firmid firmdate fldzone zonesubty elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras placefp zoningurl lbcsactivity lbcsfunction lbcstype lbcscharacter lbcsownership sourceurl publish.parcel_layer columns not fed by these sources (40) — empty or below 50% fill in this county parentid, stackid, taxyear, taxdistrict, usecode, usedesc, zoningdesc, numbldgs, numfloors, bedrooms, halfbaths, fullbaths, agvalue, township section, qtrsection, range, plssdesc, block, parceltype, accesstype, iucnclass, placename, placetype, staticbfe, fireplaces, heating, heatfuel cooling, foundation, roofcover, siding, bldgtype, naicscode, frsid, dfrurl, caapermit, cwapermit, rcrapermit, ownerlist 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 ZONING 3 mapped · 1 transformed · 7 unmapped (NULL) SOURCE COLUMNS HARMONIZED → ZONING geom zone geom zoningcode extras json_build_object() not present in source — filled with NULL (7) zoningdesc, zoningtype, ordinance, setbacks, restrictions, notes, sourceurl

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 100,441 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