County outline
Where Piscataquis County is located
Area breakdown
Land accounts for 90.5% of Piscataquis County’s measured area and water for 9.5%. Its combined area converts to 11,339.1 square kilometers or approximately 2,801,944 acres.
Green: land · blue: water
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 3,960.847 | 10,258.547 | 2,534,942.1 |
| Water | 417.19 | 1,080.517 | 267,001.6 |
| Total | 4,378.037 | 11,339.064 | 2,801,943.7 |
How Piscataquis County compares
By original Census land area, Piscataquis County ranks #2 of 16 in Maine and #125 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.
Its land area is 3.072 times the Maine county-equivalent median of 1,289.2 square miles. It accounts for 12.8% of the combined county land area in the state.
See the complete Maine ranking · What counts as a county equivalent?
Population and density of Piscataquis County
The Census Bureau estimates that 17,409 people lived in Piscataquis County on July 1, 2025. That ranks #2,023 of 3,222 county equivalents nationally and #16 of 16 in Maine. Since the April 1, 2020 estimates base of 16,807, the population has grown by 602 (+3.6%), compared with +3.8% for Maine as a whole.
With 3,960.8 square miles of land, that is 4.4 people per square mile (1.7 per km²), placing Piscataquis County #2,873 nationally for density and #16 in Maine. The median county equivalent has 47 people per square mile; the Maine median is 51. Put another way, there are about 146 acres of land per resident.
| July 1 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Estimate | 16,815 | 17,226 | 17,379 | 17,474 | 17,463 | 17,409 |
| Change | — | +411 | +153 | +95 | −11 | −54 |
U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.
Cities and towns in Piscataquis County
Piscataquis County is divided into 22 cities and towns. In Maine, county subdivisions are local governments, and together they cover all of the county’s land and residents.
The most populous is Dover-Foxcroft town, with 4,463 residents (25.6% of the county). The largest by land is Northeast Piscataquis UT, at 1,708.1 mi², or 43.1% of the county’s land. Among those with at least 1,000 residents in 2020, Greenville town grew fastest since then (+21.2%).
| County subdivision | Population 2025 | Since 2020 | Land mi² | Share of county land |
|---|---|---|---|---|
| Dover-Foxcroft townCounty seat | 4,463 | +0.9% | 67.8 | 1.7% |
| Milo town | 2,350 | +4.4% | 33 | 0.8% |
| Greenville town | 1,743 | +21.2% | 42.3 | 1.1% |
| Sangerville town | 1,336 | +2.1% | 38.4 | 1% |
| Guilford town | 1,285 | +1.6% | 34.9 | 0.9% |
| Brownville town | 1,153 | +1.4% | 43.8 | 1.1% |
| Parkman town | 759 | +1.7% | 45.2 | 1.1% |
| Sebec town | 676 | +1.5% | 36.7 | 0.9% |
| Monson town | 642 | +5.8% | 46.8 | 1.2% |
| Abbot town | 638 | −2.3% | 34.5 | 0.9% |
| Southeast Piscataquis UT | 493 | +0.8% | 75.1 | 1.9% |
| Northeast Piscataquis UT | 308 | +1.7% | 1,708.1 | 43.1% |
| Shirley town | 275 | +8.7% | 53.3 | 1.3% |
| Medford town | 235 | +1.7% | 42.3 | 1.1% |
| Wellington town | 232 | +2.7% | 39.9 | 1% |
Show the other 7 subdivisions
| Name | Population 2025 | Since 2020 | Land mi² |
|---|---|---|---|
| Lake View plantation | 152 | +1.3% | 40.9 |
| Northwest Piscataquis UT | 141 | +1.4% | 1,372.4 |
| Bowerbank town | 137 | 0% | 41.9 |
| Willimantic town | 136 | +0.7% | 43.2 |
| Beaver Cove town | 134 | +1.5% | 31.9 |
| Blanchard UT | 91 | +1.1% | 44.3 |
| Kingsbury plantation | 30 | 0% | 44.1 |
Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each subdivision inside Piscataquis County. Land: 2026 Census Gazetteer. How communities are listed.
Metropolitan area
Piscataquis County is not part of any metropolitan or micropolitan statistical area in the Office of Management and Budget’s July 2023 delineation; 1,306 other county equivalents are also outside one. These areas are built around an urban core of at least 10,000 people plus the counties tied to it by commuting, so counties outside them are generally rural.
ZIP codes
16 ZIP Code Tabulation Areas have land in Piscataquis County; 13 of them have most of their land inside the county, and the others mainly cover neighboring areas.
04406044140441504426044410444204443044620446304464044780447904481044850473204942
ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Lighter codes have less than half of their land in this county. Post-office-box and single-address ZIP Codes have no tabulation area.
Counties bordering Piscataquis County
Piscataquis County shares a land border with 3 county equivalents. It has more land than 2 of them. The largest neighbor is Aroostook County (6,671.2 mi²) and the smallest is Penobscot County (3,397 mi²). Together with its neighbors, Piscataquis County forms a block of 17,953.4 mi² of land, of which it holds 22.1%.
| Bordering county equivalent | Land mi² | Size vs. Piscataquis | Compare |
|---|---|---|---|
| Aroostook County | 6,671.2 | 1.7× larger | Compare |
| Somerset County | 3,924.3 | about the same | Compare |
| Penobscot County | 3,397 | 1.2× smaller | Compare |
How big is Piscataquis County compared with U.S. states?
Piscataquis County has more land than 2 of the 50 states. It is about 2 times the land area of Delaware (1,948.6 mi²), while Connecticut, the next larger state, has 1.2 times as much land (4,842.5 mi²). Maine’s county land could hold about 7.8 areas the size of Piscataquis County.
Another way to picture it: the same land area would fill a square about 62.9 miles (101.3 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.
State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.
What stands out about Piscataquis County?
Piscataquis County has more land than 3,097 of the other 3,221 county equivalents in the dataset.
A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.
Does including water change its rank?
Using land plus water places Piscataquis County at #114 nationally by total area, 11 places closer to the top than its land rank. The water assigned to this geography moves it ahead of some county equivalents with more land.
Its water share is 9.5%, compared with a national county-equivalent median of 1.2% — 8.4 percentage points higher. This describes the statistical geography’s land/water mix, not flood exposure or developable land.
Closest positions in the national land ranking
These entries sit immediately beside Piscataquis County in the national ranking. They can be in different states and are not necessarily geographic neighbors.
| Land rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #124 | Grant County, New Mexico | 3,961.2 | Compare |
| #125 | Piscataquis County, Maine | 3,960.8 | This county |
| #126 | Modoc County, California | 3,948.2 | Compare |
Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.
Representative coordinates
The Census internal point is 45.915639, -69.102231. It represents a location inside the geography; it is not necessarily the centroid or the address of a courthouse.
Source and precision
U.S. Census Bureau, 2026 Gazetteer Files, Counties. Original ALAND: 10,258,545,844 m²; AWATER: 1,080,517,305 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.
Common questions
How big is Piscataquis County?
Piscataquis County, Maine has 3,960.8 square miles (10,258.5 km²) of land and 417.2 square miles of water, for a total area of 4,378 square miles. It ranks #125 of 3,222 U.S. county equivalents by land area.
Is Piscataquis County the largest county in Maine?
No. Piscataquis County ranks #2 of 16 in Maine by land area. The largest is Aroostook County, with 6,671.2 square miles of land.
What counties border Piscataquis County?
Piscataquis County shares a land border with Somerset County, Penobscot County, and Aroostook County.
What is the population of Piscataquis County?
The Census Bureau estimates Piscataquis County had 17,409 residents on July 1, 2025, ranking #2,023 of 3,222 county equivalents. That is 4.4 people per square mile of land.
What is the county seat of Piscataquis County?
The county seat of Piscataquis County is Dover-Foxcroft.
What cities and towns are in Piscataquis County?
Piscataquis County has 22 county subdivisions (cities, towns and townships). The most populous five are Dover-Foxcroft town, Milo town, Greenville town, Sangerville town, and Guilford town.
Is Piscataquis County part of a metropolitan area?
No. Piscataquis County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.
How many ZIP codes are in Piscataquis County?
16 ZIP Code Tabulation Areas have land in Piscataquis County, and 13 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.
How does Piscataquis County compare with U.S. states?
It has more land than 2 of the 50 states, including Delaware (1,948.6 square miles of land).
How many acres of land are in Piscataquis County?
The land measurement converts to approximately 2,534,942 acres. Including water, total area is approximately 2,801,944 acres. One square mile equals 640 acres.
Why might another source show a different area?
Check whether it reports land or total area, its Census vintage, and its rounding. Our guide explains how to reconcile county area figures.
Can this establish a property boundary?
No. Statistical measurements and generalized maps do not establish property lines. Consult the relevant local surveying or land-records authority.