Knox County, Maine

Knox County
Knox County Courthouse
Location within the U.S. state of Maine
Maine's location within the U.S.
Coordinates: 44°07′12″N 69°07′40″W / 44.119938°N 69.127899°W / 44.119938; -69.127899
Country United States
State Maine
FoundedApril 1, 1860
Named afterHenry Knox
SeatRockland
Largest cityRockland
Area
  Total
1,144 sq mi (2,960 km2)
  Land365 sq mi (950 km2)
  Water779 sq mi (2,020 km2)  68%
Population
 (2020)
  Total
40,607
  Density35/sq mi (14/km2)
Time zoneUTC−5 (Eastern)
  Summer (DST)UTC−4 (EDT)
Congressional district1st
Websiteknoxcountymaine.gov

Knox County is a county located in the state of Maine, United States. As of the 2020 census, the population was 40,607. Its county seat is Rockland. The county is named for Revolutionary War general and Secretary of War Henry Knox, who lived in the county from 1795 until his death in 1806. The county was established on April 1, 1860, and is the most recent county to be created in Maine. It was carved from parts of Waldo and Lincoln counties. The Union Fair, started in 1868, began as the efforts of the North Knox Agricultural and Horticultural Society.