New Hampshire · FIPS 33013 · County seat: Concord
Merrimack County, NH GIS & Parcel Viewer
Use this page to reach the official statewide parcel map for Merrimack 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 Merrimack 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 | 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 | Concord |
| Population | 157,103 (2023 Census Bureau estimate) |
| Land area | 933 sq mi |
| FIPS code | 33013 |
Where the parcel data comes from
Merrimack County doesn't have its own viewer in our directory, so we point you to a statewide map: NHDOT Parcel Mosaic Viewer. Zoom in on Merrimack County to see its parcels. Because a state agency compiles this layer from local data, check with the Merrimack County assessor or recorder before relying on a recent change. Our October 2026 check found the map open to the public, with no account or payment needed.
Finding a property on this statewide map
- Open NHDOT Parcel Mosaic Viewer in a new tab and zoom to Merrimack County (around Concord).
- 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.
Many parcel sites expect owner names last name first. If a full name finds nothing, try just the surname.
About Merrimack County
Merrimack County had an estimated 157,103 residents in 2023, according to the Census Bureau. With about 933 square miles of land, that works out to roughly 168 people per square mile. By population it ranks 3rd of 10 counties in New Hampshire. Its county seat is Concord.
Nearby parcel maps
Merrimack County shares a border with the counties below. Each link has its own official map:
Maps vs. surveys
Online parcel lines are drawn for tax and planning use. They can be off by several feet, so use a recorded plat or a licensed surveyor for fences, setbacks or a sale.