New Hampshire · FIPS 33017 · County seat: Dover
Strafford County, NH GIS & Parcel Viewer
Use this page to reach the official statewide parcel map for Strafford County, New Hampshire. The button below opens NHDOT Parcel Mosaic Viewer in a new tab, so you can look up parcels by address, owner or parcel number on the source site itself.
Open the Strafford County statewide map ↗
Opens experience.arcgis.com in a new tab. We link out and never embed or copy parcel data.
Strafford County at a glance
| Official map | NHDOT Parcel Mosaic Viewer |
|---|---|
| Type | Statewide map (covers all of New Hampshire) |
| Website | experience.arcgis.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Dover |
| Population | 133,243 (2023 Census Bureau estimate) |
| Land area | 367 sq mi |
| FIPS code | 33017 |
Where the parcel data comes from
The link goes to a statewide map (NHDOT Parcel Mosaic Viewer). It shows parcels for Strafford County along with the rest of New Hampshire. Because a state agency compiles this layer from local data, check with the Strafford 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.
How to use the Strafford County viewer
- Press the button to load the statewide viewer, then move the map to Strafford 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.
Many parcel sites expect owner names last name first. If a full name finds nothing, try just the surname.
Strafford County by the numbers
Census Bureau figures put Strafford County at about 133,243 people (2023 estimate) on roughly 367 square miles of land, which is about 363 residents per square mile. That makes it number 4 out of 10 New Hampshire counties by population. Dover serves as the county seat.
Nearby parcel maps
Strafford County shares a border with the counties below. Each link has its own official map:
Maps vs. surveys
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.