New Hampshire · FIPS 33011 · County seat: Manchester and Nashua
Hillsborough County, NH GIS & Parcel Viewer
Here is the direct link to the statewide parcel map covering Hillsborough County, NH: NHDOT Parcel Mosaic Viewer. Below you'll find basic facts about the county, steps for using the viewer, and nearby counties.
Open the Hillsborough County statewide map ↗
Opens experience.arcgis.com in a new tab. We link out and never embed or copy parcel data.
Hillsborough 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 | Manchester and Nashua |
| Population | 427,354 (2023 Census Bureau estimate) |
| Land area | 877 sq mi |
| FIPS code | 33011 |
About the official source
This is a statewide map, not a county site. NHDOT Parcel Mosaic Viewer covers parcels across New Hampshire, and Hillsborough County is one part of it. Statewide parcel layers are usually stitched together from county files, so the newest splits or sales may show up on the county's own records first. Our October 2026 check found the map open to the public, with no account or payment needed.
Searching for a parcel, step by step
- Press the button to load the statewide viewer, then move the map to Hillsborough 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.
Have a tax bill handy? The parcel or account number on it is usually the fastest way to search.
Hillsborough County by the numbers
Census Bureau figures put Hillsborough County at about 427,354 people (2023 estimate) on roughly 877 square miles of land, which is about 487 residents per square mile. That makes it the most populous of New Hampshire's 10 counties. The county has two seats: Manchester and Nashua.
Neighboring counties
Parcels close to the edge of Hillsborough County can fall in the next county over. Neighboring counties:
- Cheshire County
- Merrimack County
- Rockingham County
- Sullivan County
- Essex County, MA
- Middlesex County, MA
- Worcester County, MA
A note on accuracy
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.