What is the county seat of Franklin County?

The county seat of Franklin County is Farmington.

Is there an online parcel map for Franklin County?

Yes. Maine GeoLibrary (Maine Office of GIS) publishes a parcel map of 23,174 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.

Has Franklin County's boundary or name changed?

Franklin County was created in 1838 from Kennebec County, Oxford County and Somerset County. Since then the Atlas of Historical County Boundaries records 3 later changes, chiefly involving Somerset County and Kennebec County.

Is my lot in a flood zone?

We do not have flood maps for Franklin County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

County · code 23007

Franklin CountyMaine

Franklin County is a county in Maine with its seat in Farmington. It was created in 1838 from parts of Kennebec, Oxford, and Somerset Counties and named after Benjamin Franklin.

Founded1838
County seatFarmington
Named forBenjamin Franklin
Land area1,697 sq mi + 47 sq mi water
Population29,456 2020 Census
Parcels mapped23,174 checked 16 October 2026

Open the free map Click any parcel in Franklin County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated 19 October 2026

Census outline · seat marked

Where it is

Franklin on the map of Maine

Maine has 16 counties and county equivalents, each with its own records office. Shapes with a page are links.

Counties of Maine · Franklin highlighted

History

Formed in 1838 from Kennebec County, Oxford County and Somerset County

An old deed may name a county that no longer exists, or a boundary that has since moved.

Franklin County was created on May 9, 1838, from Kennebec, Oxford, and Somerset Counties. In the following years, the county gained and lost small areas to Somerset and Kennebec Counties as towns adjusted their boundaries.

Boundary changes from the Newberry Library, Atlas of Historical County Boundaries.

1838
Franklin County created Franklin created from Kennebec, Oxford, and Somerset.
from Kennebec from Oxford from Somerset
9 May 1838 · Me. Pub. Acts 1838, ch. 328, sec. 1/p. 476; Me. Gov. Proc. 2:99-100
1840
Lost territory Franklin lost small area to Somerset when town of Anson gained from town of New Vineyard.
to Somerset
18 March 1840 · Me. Laws 1840, ch. 75/p. 100
1841
Gained territory Franklin gained from Somerset when town of New Sharon gained from town of Mercer.
from Somerset
6 April 1841 · Me. Laws 1841, ch. 148/p. 349
1842
Changed Webster-Ashburton Treaty between Great Britain and the United States settled the U.S.-Canadian boundary, fixing the northern limits of Franklin (no change).
U.s.
9 August 1842 · Van Zandt, 17-18
1847
Gained territory Franklin gained from Kennebec when town of Chesterville gained from town of Vienna.
from Kennebec
2 August 1847 · Me. Laws 1847, Priv., ch. 93/p. 132
1852
Boundary clarified Boundary between Franklin and Kennebec was redefined (no change).
with Kennebecno change
9 April 1852 · Me. Laws 1852, Priv., ch. 566/p. 567

Land and parcels

What the maps cover in Franklin

Who publishes each layer, how good it is, and when we last checked.

Parcels Good enough

Lot lines and tax-map numbers for 23,174 parcels from Maine GeoLibrary (Maine Office of GIS). Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
edited 17 August 2026 · checked 16 October 2026
Address points Missing

No public address points layer found for Franklin County yet.
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

Franklin by the Census

Population

29,456 2020 Census count

Housing units

20,856 2020 Census count

Land area

1,697 square miles

Water area

47 square miles

People per sq mi

17 population ÷ land area

Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.

Rules and offices

Franklin County's official site

We have found the county's site but not its offices yet; start there.

In Maine, 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 Franklin County.
franklincounty.maine.gov

See your own lot on these maps

Open Franklin 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.

Open the free map no sign-in Pro early access

Questions

Common questions about Franklin County

When was Franklin County founded?: Franklin County was founded in 1838, formed from Kennebec County, Oxford County and Somerset County, and named after Benjamin Franklin.
What is the county seat of Franklin County?: The county seat of Franklin County is Farmington.
Is there an online parcel map for Franklin County?: Yes. Maine GeoLibrary (Maine Office of GIS) publishes a parcel map of 23,174 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Franklin County's boundary or name changed?: Franklin County was created in 1838 from Kennebec County, Oxford County and Somerset County. Since then the Atlas of Historical County Boundaries records 3 later changes, chiefly involving Somerset County and Kennebec County.
Is my lot in a flood zone?: We do not have flood maps for Franklin County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby