• county
  • FIPS 23003
  • Largest town: Presque Isle

Aroostook County, Maine

Aroostook County had 66,776 residents in the Census Vintage 2024 estimate, on 6,671.2 square miles of land. It is the largest by land of Maine's 16 county-equivalents.

Population
66,776
#6 of 16 in Maine · #818 in US
Area
6,671.2 sq mi
#1 of 16 in Maine · #49 in US
Density
10 / sq mi
#15 of 16 in Maine · #2,567 in US
Median household income
$56,361
#14 of 16 in Maine · #2,194 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Aroostook County within Maine. Pin: Augusta.

Measure from here

Tools and pages that start from Aroostook County

Aroostook County population, land area and income

Aroostook County had 66,776 residents in the Census Vintage 2024 estimate, on 6,671.2 square miles of land. It is the largest by land of Maine's 16 county-equivalents. That works out to 10.0 people per square mile, below the US average of 96.3, and in the bottom quarter nationally.

The median county-equivalent in Maine has 54,142 residents; Aroostook County is somewhat larger.

Its SAIPE 2023 median household income of $56,361 is below the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

66,776

3144th1st

818th of 3,144 (US)

Land area

6,671 sq mi

3144th1st

49th of 3,144 (US)

Density

10.0 / sq mi

3144th1st

2567th of 3,144 (US)

Median household income

$56,361

3143rd1st

2194th of 3,143 (US)

Rank within Maine (16)

Population

66,776

16th1st

6th of 16 (ME)

Land area

6,671 sq mi

16th1st

1st of 16 (ME)

Density

10.0 / sq mi

16th1st

15th of 16 (ME)

Median household income

$56,361

16th1st

14th of 16 (ME)

How Aroostook County's population changed since 2020

Aroostook County lost 277 residents between the July 2020 and July 2024 estimates, a drop of 0.4%. That ranks 16th of 16 in Maine for growth. The median Maine county changed by +3.0%, and the state as a whole by +3.0%.

Since the April 2020 estimates base, Aroostook County recorded 2,488 births and 4,623 deaths, a natural change of -2,135. Net international migration added +216 and net domestic migration, people moving to or from other US counties, came to +1,552. The largest single component was natural change, which removed 2,135 people.

67.1k202067.1k202167.3k202267.1k202366.8k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
2,488
Deaths
4,623
Net international migration
+216
Net domestic migration
+1,552
Change, July 2023 to July 2024
-373

Where Aroostook County is

The Census internal point of Aroostook County is at 46.709200, -68.612400. It sits in UTM zone 19N. The map shades Maine's 16 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Aroostook County outlined. Dots are towns of 1,000+ people with residents in it.

York County: +3.7%Hancock County: +2.6%Washington County: +0.9%Aroostook County: -0.4%Androscoggin County: +3.7%Sagadahoc County: +2.3%Franklin County: +4.9%Oxford County: +3.7%Waldo County: +2.4%Somerset County: +1.7%Cumberland County: +3.4%Kennebec County: +3.0%Piscataquis County: +3.8%Penobscot County: +3.1%Knox County: +0.8%Lincoln County: +3.5%
Change 2020 to 2024
  1. < +1.7%
  2. < +2.6%
  3. < +3.4%
  4. < +3.7%
  5. ≥ +3.7%
no data

Orange pin: Aroostook County internal point. Dark pin: Augusta.

Internal point

Decimal
46.709200, -68.612400
DMS
46°42'33.12"N 68°36'44.64"W
UTM
19N 529627.0E 5172922.3N
Geohash
f2r1wxjuz
Plus code
87RHP95Q+M2

Towns in Aroostook County

2 incorporated places of 1,000+ people have residents in Aroostook County, 16,056 people together, or 24% of the county. Each figure counts only the part of the town inside Aroostook County; towns marked "part" extend into another county. The largest is Presque Isle with 8,728.

  1. 01Presque Isle8,728
  2. 02Caribou7,328
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Aroostook County

The Census 2024 county adjacency file lists 4 neighbors for Aroostook County. The most populous is Penobscot County, ME, with 156,840 residents. Distances run between Census internal points in a straight line.

Distance to Augusta and the nearest big city

Augusta is 175.4 miles SSW of Aroostook County's internal point in a straight line. The nearest place of 100,000 or more is Manchester, NH (population 116,386), 292.3 miles away. The nearest place of 10,000 or more is Bangor, ME (population 32,446), 130.1 miles away.

Aroostook County FIPS code

The FIPS code of Aroostook County is 23003: state code 23 for Maine plus county code 003. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $56,361.

Questions people ask

What is the population of Aroostook County, Maine?

The Census Vintage 2024 estimate for July 1, 2024 is 66,776. That is down 277 people (0.4%) from the July 2020 estimate of 67,053.

What is the FIPS code of Aroostook County?

23003. The first two digits (23) are Maine; the last three (003) identify the county.

What is the largest town in Aroostook County?

Presque Isle, with 8,728 residents inside Aroostook County in 2024.

Which counties border Aroostook County?

4 county-equivalents border it in the Census 2024 adjacency file: Penobscot County, ME; Somerset County, ME; Washington County, ME; Piscataquis County, ME.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.