Stage 1 Fire Restrictions, effective Aug. 12, 2025, for unincorporated western Boulder County.

Visit the Boulder County Ballot Measures website for information about possible 2025 ballot measures.

Fairgrounds Calendar
A marquee sign outside the Fairgrounds listing upcoming events

Fairgrounds Calendar

The Fairgrounds serves a multitude of year-round rural and urban uses. Its facilities offer a connection to the rural character of Boulder County by supporting a variety of livestock and dog shows, equestrian related activities, 4-H programs, Farmers Markets, and the annual Boulder County Fair.

Mountain and Plains Appaloosa Horse Club Colorado Colors Fall Finale Horse Show

Indoor Arena 9595 Nelson Road, Longmont, CO
Longmont Farmers Market

Longmont Farmers Market

North Parking Lot 9595 Nelson Rd, Longmont, CO

Mountain and Plains Appaloosa Horse Club Colorado Colors Fall Finale Horse Show

Indoor Arena 9595 Nelson Road, Longmont, CO

Mountain and Plains Appaloosa Horse Club Colorado Colors Fall Finale Horse Show

Indoor Arena 9595 Nelson Road, Longmont, CO

Longmont Fall Home Show

Exhibit Building 9595 Nelson Road, Longmont, CO
Longmont Farmers Market

Longmont Farmers Market

North Parking Lot 9595 Nelson Rd, Longmont, CO

CDGA Dairy Goat Show

Barn A 9595 Nelson Road, Longmont, CO

High Country Working Equitation Horse Show

Indoor Arena 9595 Nelson Road, Longmont, CO

Longmont Fall Home Show

Exhibit Building 9595 Nelson Road, Longmont, CO

CDGA Dairy Goat Show

Barn A 9595 Nelson Road, Longmont, CO

High Country Working Equitation Horse Show

Indoor Arena 9595 Nelson Road, Longmont, CO

Longmont Fall Home Show

Exhibit Building 9595 Nelson Road, Longmont, CO

Contact Us

Address

9595 Nelson Road
Longmont, CO 80501
Map and Directions