Map of Coos County NH Roads Printable

Coös County or Coos County is a county in the U.S. state of New Hampshire. As of the 2020 census, the population was 31,268, making it the least-populated county in the state. The county seat is Lancaster.
  • Country: United States
  • State: New Hampshire
  • Founded: 1803
  • Named for: Algonquian for “small pines”
  • Seat: Lancaster
  • Largest city: Berlin
  • Congressional district: 2nd

Nearby

Data from: en.wikipedia.org