Boulder County Co

Boulder County is a county located in the U.S. state of Colorado of the United States. As of the 2020 census, the population was 330,758. The most populous municipality in the county and the county seat is Boulder.
  • Country: United States
  • State: Colorado
  • Founded: November 1, 1861
  • Named for: large granite boulders in area
  • Seat: Boulder
  • Largest city: Boulder
  • Congressional districts: 2nd, 4th

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Data from: en.wikipedia.org