Visit the Boulder County Ballot Measures website for information about 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.

Calendar of Events

Longmont Farmers Market

Longmont Farmers Market

North Parking Lot 9595 Nelson Rd, Longmont, CO

Native American Art Auction

Barn A 9595 Nelson Road, Longmont, CO

Pumpkin Pie Days Vintage and Antique Market

Exhibit Building 9595 Nelson Road, Longmont, CO

Native American Art Auction

Barn A 9595 Nelson Road, Longmont, CO

Pumpkin Pie Days Vintage and Antique Market

Exhibit Building 9595 Nelson Road, Longmont, CO

Longmont Quilt Guild Quilt Show

Barn A 9595 Nelson Road, Longmont, CO
Longmont Farmers Market

Longmont Farmers Market

North Parking Lot 9595 Nelson Rd, Longmont, CO

Longmont Quilt Guild Quilt Show

Barn A 9595 Nelson Road, Longmont, CO

Mollie McGee’s 44th Annual Fall Craft Market

Exhibit Building 9595 Nelson Road, Longmont, CO

Boulder County Horse Association Fun Show

Indoor Arena 9595 Nelson Road, Longmont, CO

Mollie McGee’s 44th Annual Fall Craft Market

Exhibit Building 9595 Nelson Road, Longmont, CO

4-H Open House

Exhibit Building 9595 Nelson Road, Longmont, CO

Contact Us

Address

9595 Nelson Road
Longmont, CO 80501
Map and Directions