Boulder County government offices are closed Wednesday, June 19, in observance of Juneteenth. Primary Elections Vote Center locations are open.


Boulder County Fairgrounds

The Fairgrounds offers rural and urban residents facilities for trade shows, animal and livestock shows, fairs, rodeos, picnics and large meetings.

Fairgrounds Master Plan

An updated Master Plan is temporarily on hold while funding options are reviewed.


There are several facilities available for rent for special events.

Boulder County Fairgrounds Map
  • Exhibit building
  • Indoor arena
  • Outdoor arena
  • Picnic shelter
  • Sheltered barns
  • Parking lots

Contact Us


9595 Nelson Road
Longmont, CO 80501
Map and Directions