Maine / Counties / Knox

Knox County

Seat

Rockland

FIPS

23013

Places

20towns and cities

Rivers

—on file

Lakes

25largest 25

Federal money

$370.7 million2026-10-12

Weather alerts

02026-10-12 · None

Density

113 per sq mi2026-01-01

Land

365 sq mi2026-01-01

Water

767 sq mi2026-01-01

Income

$74,0962024-12-31

EPA sites

155 places2026-10-12

Climate reporters

2 places2023-12-31

Chemical reporters

12 places2026-10-12

Housing

24,564 units2024-12-31

Median age

50 years2024-12-31

What these figures mean

Federal money. Federal awards whose work was listed in this county for fiscal year 2025.
Weather alerts. Flood, wind, winter storm, and similar warnings for Maine from the weather service. Zero means none were in effect when we last checked.
Density. People divided by land square miles. Downtown Portland is dense; an unorganized township is not.
Land. Square miles of land, from the Census Gazetteer. Water is counted separately.
Income. American Community Survey 5-year estimate. Half of households earn more, half earn less.
EPA sites. Sites EPA tracks for air, water, or hazardous waste rules. A count is not a violation score.
Climate reporters. Factories, power plants, and landfills large enough that EPA makes them report greenhouse gases each year. Not every shop or farm — only the big ones. Latest complete year is 2023.
Chemical reporters. Workplaces that use certain chemicals and file a yearly Toxics Release Inventory form. A count is not the same as “this county is dirty.” It means those sites exist and have not been marked closed.
Housing. Houses, apartments, and other units, occupied or empty. ACS 5-year.
Median age. Half the people are older than this age, half younger. ACS 5-year.

Farms

2712022 Census

Farm acres

24,233land in farms

Potatoes

1016 farms

Blueberries

3,11869 farms · acres

Maple

3089 farms · gallons

Milk

$0no farms reported

2022 Census of Agriculture, USDA NASS. Withheld means NASS hid the number to protect a farm. It is not zero. Potato and blueberry figures are acres. Maple is gallons. Milk is dollars sold.

Lobster

20,585,4752025 preliminary · pounds

Landed value

$124,426,771$143,487,730 in 2024

2025 20.6m

2024 22.2m

2023 25.0m

2022 26.2m

2021 29.9m

2020 26.0m

2019 27.8m

2018 31.2m

2017 29.1m

2016 35.2m

Maine DMR commercial lobster landings by county. Pounds and boat price. The chips are millions of pounds, newest first. 2025 is preliminary. County totals can miss landings DMR could not assign.

Places

PlacePop

Appletontown 1,469

Camdentown 5,204

Criehavenut 3

Cushingtown 1,482

Friendshiptown 1,159

Hopetown 1,737

Isle au Hauttown 84

Matinicus Isleplantation 50

Muscle Ridge Islandsut 8

North Haventown 432

Owls Headtown 1,494

Rocklandcity 7,142

Rockporttown 3,628

South Thomastontown 1,520

St. Georgetown 2,595

Thomastontown 2,751

Uniontown 2,444

Vinalhaventown 1,254

Warrentown 5,099

Washingtontown 1,562

Lakes

Great Ponds in this county, largest first.

LakeAcresDrains toward

Crawford Pond 598 acres —

Alford Lake 585 acres —

Washington Pond 565 acres —

South Pond 554 acres —

Sennebec Pond 537 acres —

Seven Tree Pond 528 acres —

Chickawaukie Pond 354 acres —

North Pond 345 acres —

Hobbs Pond 266 acres —

Round Pond 255 acres —

Grassy Pond 190 acres —

Lermond Pond 174 acres —

Carvers Pond 151 acres —

Fish Pond 144 acres —

Mirror Lake 115 acres —

Fresh Pond 101 acres —

Crystal Pond 99 acres —

White Oak Pond 89 acres —

Impoundment (Seabright Pond) 74 acres —

Old Harbor Pond 67 acres —

unnamed pond 65 acres —

Long Pond 63 acres —

Hosmer Pond 55 acres —

Salt Pond 45 acres —

Mansfield Pond 41 acres —