Maryland · FIPS 24027 · County seat: Ellicott City
Howard County, MD GIS & Parcel Viewer
Use this page to reach the official statewide parcel map for Howard County, Maryland. The button below opens Maryland FINDER Online (MD Dept. of Planning) in a new tab, so you can look up parcels by address, owner or parcel number on the source site itself.
Open the Howard County statewide map ↗
Opens experience.arcgis.com in a new tab. We link out and never embed or copy parcel data.
Howard County at a glance
| Official map | Maryland FINDER Online (MD Dept. of Planning) |
|---|---|
| Type | Statewide map (covers all of Maryland) |
| Website | experience.arcgis.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Ellicott City |
| Population | 336,001 (2023 Census Bureau estimate) |
| Land area | 251 sq mi |
| FIPS code | 24027 |
Where the parcel data comes from
This is a statewide map, not a county site. Maryland FINDER Online (MD Dept. of Planning) covers parcels across Maryland, and Howard County is one part of it. Because a state agency compiles this layer from local data, check with the Howard County assessor or recorder before relying on a recent change. As of our October 2026 test, anyone could open it without signing in or paying.
Searching for a parcel, step by step
- Open Maryland FINDER Online (MD Dept. of Planning) in a new tab and zoom to Howard County (around Ellicott City).
- Type a street address into the search box, or click directly on a parcel.
- Review the parcel attributes; field names vary by state.
- Confirm anything important with the county assessor, since the statewide layer is a compiled copy.
Have a tax bill handy? The parcel or account number on it is usually the fastest way to search.
Howard County by the numbers
The U.S. Census Bureau estimated Howard County's population at 336,001 in 2023, spread over about 251 square miles of land, or roughly 1,339 people per square mile. By population it ranks 6th of 24 counties in Maryland. The county seat is Ellicott City.
Neighboring counties
Howard County shares a border with the counties below. Each link has its own official map:
- Anne Arundel County
- Baltimore County
- Carroll County
- Frederick County
- Montgomery County (state list)
- Prince George's County
A note on accuracy
The lines you see online are approximate. They're good for finding a lot and its parcel number, but a legal boundary question needs the recorded plat or a surveyor.