At 156 years of age, the Boulder County Fair is Colorado’s oldest. Rodeos, a colorful midway with all manner of entertainment, a slew of kid’s activities, animal barns, a traditional carnival, music, kid’s area, crafts, food and more fill the fair calendar from Wednesday to Sunday, August 6 to 10, 2025. With parking, gate admission and most activities FREE, you can visit more than once.
The website includes a calendar so you can plan your fair-going. Thursday August 7 from noon to 11 p.m. is Kid’s Day at the carnival (unlimited rides via $20 wristband, available between noon and 4 p.m. and used that day until 11 p.m.)
The fair includes several musical artists performing in sets that are spread out over the weekend. The bands are all from Colorado mostly from the Boulder-Denver area, playing country, folk, blues and Americana music.
Performers include Delta Sonics, Nathaniel Riley, The Barlow, Digg, King Orchard and others.
Parking and gate admission are both FREE, with most special events (such as a demolition derby, tractor pull and rodeo) fee-based, ranging from $17 to $47 for adults.
An unlimited carnival rides wristband is $35 per day.
Click here for a schedule. Boulder County Fairgrounds, 9595 Nelson Rd., Longmont, 720-864-6460.
Overall fairground hours are 10 a.m. to 11 p.m. daily. The Fair Garden and Carnival hours vary depending on the particular day’s events and entertainment.
Boulder County Fairgrounds, 9595 Nelson Rd., Longmont, 720-864-6460.
Want More Fun Things To Do?
Look at our full events calendar, where you can type in any date, or check out what’s happening over the next few days right here:
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