Blog · October 14, 2026 · New Hampshire
Using the Franklin GIS Map
Parcel data for Franklin comes from the county, and the viewer is free.
Main page: Merrimack County, NH GIS & Parcel Viewer (official map link, county facts and neighboring maps).
Platbookmapper is an Amazon Associate. If you buy through an Amazon link on this page, we earn a commission. The link is a product, not the county map.
For any lot around Concord, the Franklin GIS map lays out lines, owner names and parcel numbers. In this Franklin guide: where that map lives, the fastest ways to search, and the limits worth knowing.
Opening the Franklin GIS map
In most places the county maintains the parcel layer, so for Franklin the go-to is the NHDOT Parcel Mosaic Viewer.
Where the parcel data lives
Your first stop is the NHDOT Parcel Mosaic Viewer; it covers each assessed parcel around New London and Warner. For land near Allenstown, enter a street address, an owner's name or a parcel number, and the viewer zooms to the match. If you're looking near Concord, a pop-up or side panel usually lists the owner of record, acreage on the tax roll, the parcel number and sometimes recent sales.
Saving what you find
Print or screenshot the parcel near Warner with its ID visible, so you have it when calling an office.
Places you'll see on the map
Concord holds the county offices, which is where the courthouse records live. You'll also find Warner, Loudon, and New London. Roughly 157,103 people call Merrimack County home (Census estimate, 2023) across roughly 933 square miles. Merrimack County was organized in 1823, and some chains of title near Concord are long. Features like John Hay National Wildlife Refuge help you orient on the aerial around Allenstown.
When a parcel crosses a boundary
Merrimack County touches Belknap County, Grafton County, Hillsborough County, Rockingham County, and Strafford County, and each of those keeps its own parcel map. A tract near the line by Allenstown may show up across two assessors' files, so look at the adjacent map as well. The Platbookmapper state page lists each neighboring county map across New Hampshire.
Franklin and the county around it
Franklin is part of Merrimack County, New Hampshire, so its parcels are on the county's map. For acreage around New London, city or town hall handles things like zoning, permits and utilities within town limits, but the county runs assessment and recording. Acreage past the city limits out by Warner often falls under county rules rather than the town's.
Using it on a phone
Most viewers work in a phone browser, handy when you're parked on a road near Allenstown, so load it before you lose signal. A saved image of the lot near Allenstown and its lines keeps working without signal.
Search tips
By address works best for lots in Franklin; owner names are usually entered last name first. For a home near Allenstown, searching by parcel number never misses, and you'll find it on tax statements.
How land is described here
Rural deeds near Allenstown commonly use metes-and-bounds descriptions, listing bearings, distances and landmarks. Subdivision lots in Allenstown usually use lot and block from a recorded plat instead, which is simpler to follow. Write down the legal description for the tract near Allenstown before you request a deed or survey.
What the map can't tell you
Listed acreage is a tax-roll number; only a licensed surveyor can set the real lines for a parcel near Warner. Owner names and values update on a schedule, so a fresh transfer around New London might lag behind.
Layers worth turning on
Closer to New London, look in the layer list for city limits, flood hazard, zoning or soils; availability varies.
Which office to call
Anything recorded against property around Allenstown are with the county Registry of Deeds, often with an online index. Building or septic questions for a lot near Warner need the planning or permitting office, town or county, depending on location.
Owner, value and acreage
If sale dates appear, they help gauge the market near Concord are a useful starting point; an appraiser is the real authority.
When the map won't load
If the viewer stalls on a phone near Allenstown, try a desktop browser or clear the cache; the Platbookmapper county page tracks the current link.
Recorded documents worth pulling
For anything that matters, request the recorded deed through the county Registry of Deeds; the parcel map near Bradford only summarizes it. Closer to New London, have ready the book and page shown in the record panel so staff can find the deed fast.
Franklin: common questions
Are parcel lines on the map exact in Franklin?
In most cases, lines near Warner can be off by several feet or more.
How often is the parcel map updated around New London?
For most people, owner data near Bradford can lag new deeds by weeks.
How do I find who owns a lot near Bradford?
Generally, click the lot near Allenstown to see the owner; try variations if nothing comes up.
Where else can I find maps of Franklin?
It depends, but Franklin may publish zoning or utility maps separately; the county viewer remains the main parcel source.
Where do I ask about an assessment near Warner?
Values are the town assessor's job; recorded documents belong to the county Registry of Deeds; planning offices cover zoning near Concord
Open the official Merrimack County, NH parcel map See it in the Platbookmapper directory
Not a survey. County GIS and tax parcel maps are assessment and planning layers. They are not a substitute for a recorded plat, deed, or licensed survey, especially for fences, setbacks, or boundary disputes.