Howard County, MD parcel data download

Download Howard County, Maryland parcel data - 111,208 parcels with standardized boundaries and available property fields. Review county-specific completeness before checkout. Instant delivery in Shapefile, FileGDB, GeoPackage, GeoJSON & CSV. $100 per county.

Data freshness: Maryland Open Data real-property assessments monthly SDAT/MDP roll; records reflect data available as of the first day of the portal update month; last loaded into LandAI on 2026-05-22.

Every purchase includes all five export formats (Shapefile, FileGDB, GeoPackage, GeoJSON & CSV), standardized to the LandAI parcel schema with WGS84 (EPSG:4326) geometry. After checkout you choose which formats to generate and download them for 45 days.

What's in the Howard County dataset

Field completeness measured across 111,208 active parcels (Maryland Open Data real-property assessments monthly SDAT/MDP roll; records reflect data available as of the first day of the portal update month; last loaded into LandAI on 2026-05-22):

FieldCoverage
Owner names99.1%
Site addresses99.2%
Owner mailing addresses99.0%
Deeded acres99.0%
Calculated (GIS) acres100%

These are 5 of the 48 standardized fields in the LandAI parcel schema. Live per-field completeness for every field is shown on this page's interactive view.

Howard County parcel data FAQ

How many parcels are in Howard County, MD?

Howard County, Maryland has 111,208 active parcels in the LandAI dataset (source data as of 2026-05-01).

What fields are included in Howard County parcel data?

The dataset uses LandAI's standardized parcel schema. Field availability varies by source and record. Current measured completeness includes owner names (99.1%), site addresses (99.2%), owner mailing addresses (99.0%), deeded acres (99.0%), calculated (GIS) acres (100%).

What formats can I download Howard County parcel data in?

Shapefile, FileGDB, GeoPackage, GeoJSON & CSV. Every $100 county purchase includes all five formats; you choose which to generate after checkout and can re-download for 45 days.

How current is the Howard County parcel data?

Maryland Open Data real-property assessments monthly SDAT/MDP roll; records reflect data available as of the first day of the portal update month; last loaded into LandAI on 2026-05-22.

Does Howard County parcel data include owner names?

99.1% of Howard County parcels currently include a normalized owner name. Mailing-address coverage is measured and reported separately when the source provides it.

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