Waldo County, Maine

Waldo County
Location within the U.S. state of Maine
Maine's location within the U.S.
Coordinates: 44°28′29″N 69°07′05″W / 44.474743°N 69.117981°W / 44.474743; -69.117981
Country United States
State Maine
Founded1827
Named afterSamuel Waldo
SeatBelfast
Largest cityBelfast
Area
  Total
853 sq mi (2,210 km2)
  Land730 sq mi (1,900 km2)
  Water123 sq mi (320 km2)  14%
Population
 (2020)
  Total
39,607
  Density46/sq mi (18/km2)
Time zoneUTC−5 (Eastern)
  Summer (DST)UTC−4 (EDT)
Congressional district2nd
Websitewaldocountyme.gov

Waldo County is a county in the state of Maine, United States. As of the 2020 census, the population was 39,607. Its county seat is Belfast. The county was founded on February 7, 1827, from a portion of Hancock County and named after Brigadier-General Samuel Waldo, proprietor of the Waldo Patent.