Massachusetts · FIPS 25007 · County seat: Edgartown
Dukes County, MA GIS & Parcel Viewer
Dukes County, Massachusetts parcel data lives on MassGIS Interactive Property Map. Open it below in a new tab, then use the short steps on this page to find a property fast.
Open the Dukes County statewide map ↗
Opens experience.arcgis.com in a new tab. We link out and never embed or copy parcel data.
Map and county facts
| Official map | MassGIS Interactive Property Map |
|---|---|
| Type | Statewide map (covers all of Massachusetts) |
| Website | experience.arcgis.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Edgartown |
| Population | 20,819 (2023 Census Bureau estimate) |
| Land area | 103 sq mi |
| FIPS code | 25007 |
Who runs this map
The link goes to a statewide map (MassGIS Interactive Property Map). It shows parcels for Dukes County along with the rest of Massachusetts. A statewide layer can trail the county's own books by weeks or months, so treat it as a fast first look rather than the final word. When we tested the link in October 2026 it opened with no login and no fee.
How to use the Dukes County viewer
- Press the button to load the statewide viewer, then move the map to Dukes County.
- Use the viewer's search tool to find an address or parcel, if it has one.
- Click a lot to read its details.
- For deeds, taxes or official copies, take the parcel number to the county's own offices.
Rural addresses don't always geocode well. When that happens, zoom in by hand and click the parcel, or search by owner name.
Dukes County by the numbers
Census Bureau figures put Dukes County at about 20,819 people (2023 estimate) on roughly 103 square miles of land, which is about 202 residents per square mile. By population it ranks 13th of 14 counties in Massachusetts. Another 388 square miles of water fall within its lines, according to Census mapping. Its county seat is Edgartown.
Counties next to Dukes County
Parcels close to the edge of Dukes County can fall in the next county over. Neighboring counties:
Maps vs. surveys
Keep in mind that a GIS parcel layer is a tax map, not a survey. For exact boundaries, look at the recorded deed and plat or hire a licensed land surveyor.