When was Piscataquis County founded?

Piscataquis County was founded in 1838, formed from Somerset County and Penobscot County, and named after Abenaki people.

What is the county seat of Piscataquis County?

The county seat of Piscataquis County is Dover-Foxcroft.

Is there an online parcel map for Piscataquis County?

Not that we have found yet. Lot lines and owners of record are kept by the county assessor's office. When a public parcel map appears, it shows here.

Has Piscataquis County's boundary or name changed?

Piscataquis County was created in 1838 from Somerset County and Penobscot County. Since then the Atlas of Historical County Boundaries records 2 later changes, chiefly involving Somerset County, Aroostook County and Penobscot County.

Is my lot in a flood zone?

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

County · code 23021

Piscataquis CountyMaine

Piscataquis County is a Maine county with its seat in Dover-Foxcroft, formed in 1838. The county was named after the Abenaki people.

Founded1838
County seatDover-Foxcroft
Named forAbenaki people
Land area3,961 sq mi + 417 sq mi water
Population16,800 2020 Census

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

Updated 19 October 2026

Census outline · seat marked

Where it is

Piscataquis 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 · Piscataquis highlighted

History

Formed in 1838 from Somerset County and Penobscot County

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

Piscataquis County was created on April 30, 1838, from Somerset and Penobscot counties. The Webster-Ashburton Treaty of 1842 settled the U.S.-Canadian boundary, fixing the northern limits of Piscataquis County. Boundary adjustments with neighboring counties occurred in 1844 and 1885.

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

1838
Piscataquis County created Piscataquis created from Somerset and Penobscot.
from Somerset from Penobscot
30 April 1838 · Me. Pub. Acts 1838, ch. 353, sec. 1/p. 512
1842
Changed Webster-Ashburton Treaty between Great Britain and the United States settled the U.S.-Canadian boundary, fixing northern limits of Piscataquis (no change).
U.s.
9 August 1842 · Van Zandt, 17-18
1844
Exchanged territory Piscataquis exchanged with Aroostook and Penobscot, lost to Somerset.
with Aroostook with Penobscot with Somerset
12 March 1844 · Me. Laws 1844, Pub., ch. 99, secs. 1-5/pp. 92-94
1883
Boundary clarified Boundary between Piscataquis and Somerset was redefined (no change).
with Somersetno change
13 March 1883 · Me. Laws 1883, Pub., ch. 210/p. 173
1885
Lost territory Piscataquis lost small area to Somerset when town of Cambridge gained from town of Wellington.
to Somerset
27 February 1885 · Me. Laws 1885, Priv., ch. 464/p. 634

Land and parcels

What the maps cover in Piscataquis

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

Parcels Missing

No public parcel map found for Piscataquis County yet. Lot lines and owners of record are kept by the county (piscataquis.us).
Address points Missing

No public address points layer found for Piscataquis 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

Piscataquis by the Census

Population

16,800 2020 Census count

Housing units

14,577 2020 Census count

Land area

3,961 square miles

Water area

417 square miles

People per sq mi

4 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

Piscataquis 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 Piscataquis County.
piscataquis.us

See your own lot on these maps

Open Piscataquis 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 Piscataquis County

When was Piscataquis County founded?: Piscataquis County was founded in 1838, formed from Somerset County and Penobscot County, and named after Abenaki people.
What is the county seat of Piscataquis County?: The county seat of Piscataquis County is Dover-Foxcroft.
Is there an online parcel map for Piscataquis County?: Not that we have found yet. Lot lines and owners of record are kept by the county assessor's office. When a public parcel map appears, it shows here.
Has Piscataquis County's boundary or name changed?: Piscataquis County was created in 1838 from Somerset County and Penobscot County. Since then the Atlas of Historical County Boundaries records 2 later changes, chiefly involving Somerset County, Aroostook County and Penobscot County.
Is my lot in a flood zone?: We do not have flood maps for Piscataquis County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby