County · code 33001
Belknap CountyNew Hampshire
Belknap County is a county in New Hampshire formed in 1841, with its seat in Laconia. The county was created from Strafford County and named after Jeremy Belknap.
- Founded1841
- County seatLaconia
- Named forJeremy Belknap
- Land area402 sq mi + 68 sq mi water
- Population63,705 2020 Census
- Parcels mapped40,138 checked 14 October 2026
Where it is
Belknap on the map of New Hampshire
New Hampshire has 10 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Formed in 1841 from Strafford County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Belknap County was created from Strafford County in 1841. In 1849, Belknap lost territory to Carroll County when the town of Wolfeboro gained land from the town of Alton.
- 1841Belknap County created Belknap created from Strafford. · N.H. Laws 1840, ch. 539, secs. 1-2, 16/pp. 455-456, 462
- 1841Boundary clarified Boundary between Belknap and Carroll through Lake Winnepesaukee was clarified (no change).with Carrollno change· N.H. Laws 1841, ch. 621, sec. 1/pp. 547-548
- 1849Lost territory Belknap lost to Carroll when town of Wolfeboro gained from town of Alton. · N.H. Laws 1849, ch. 859, sec. 1/p. 402
- 1897Boundary clarified Boundary between Belknap and Carroll through Lake Winnepesaukee was clarified.with Carrollno change· N.H. Laws 1897-1898, ch. 199, sec. 1/pp. 197-198
Land and parcels
What the maps cover in Belknap
Who publishes each layer, how good it is, and when we last checked.
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Parcels Good enough
Lot lines and tax-map numbers for 40,138 parcels from New Hampshire Geographic Information System Clearinghouse (GRANIT). Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
checked 14 October 2026 -
Address points Missing
No public address points layer found for Belknap County yet.
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Buildings Reference
Roof outlines traced from aerial imagery from FEMA Response Geospatial Office with Oak Ridge National Laboratory (ORNL). Good for seeing what is on a lot; not accurate enough to set a fence from.
checked 18 October 2026
- Official
- from the office that keeps the record
- Good enough
- a reliable statewide or national copy
- Fallback
- a guide only; check the official record
- Missing
- nothing public found yet
People and land
Belknap by the Census
Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.
Rules and offices
Belknap County's official site
We have found the county's site but not its offices yet; start there.
In New Hampshire, permits, zoning and assessing are handled by each city or town, not the county, and deeds are recorded at the county's registry of deeds.
County government
- County government
The official website of Belknap County.
See your own lot on these maps
Open Belknap County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.
Questions
Common questions about Belknap County
- When was Belknap County founded?
- Belknap County was founded in 1841, formed from Strafford County, and named after Jeremy Belknap.
- What is the county seat of Belknap County?
- The county seat of Belknap County is Laconia.
- Is there an online parcel map for Belknap County?
- Yes. New Hampshire Geographic Information System Clearinghouse (GRANIT) publishes a parcel map of 40,138 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Belknap County's boundary or name changed?
- Belknap County was created in 1841 from Strafford County. Since then the Atlas of Historical County Boundaries records 1 later change, chiefly involving Carroll County.
- Is my lot in a flood zone?
- We do not have flood maps for Belknap County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby