2027
Boulder County Fair
The Boulder County Fair is the oldest fair in Colorado, celebrating its 157th edition. This free-admission county fair blends agriculture, 4-H and livestock shows with carnival rides, live music, grandstand events and fair food. The 2027 edition runs August 11-15 at Boulder County Fairgrounds in Longmont, Colorado.
- Dates
- August 11, 2027 — August 15, 2027
- Hours
- 9:00 AM – 6:00 PM Unverified
- Frequency
- Once a year
Please double-check the dates and location on the organizer website before attending.
Boulder County Fair 2027
The Boulder County Fair is the oldest fair in Colorado, celebrating its 157th edition. Held each August at the Boulder County Fairgrounds in Longmont, Colorado, it is a free-admission fair with no parking or gate fees, welcoming visitors to celebrate the region's agricultural heritage and community.
The 2027 edition runs Wednesday, August 11 through Sunday, August 15, 2027, open roughly 10am-11pm daily.
What to expect
- Carnival rides and midway games
- Livestock shows and 4-H & open creative-living exhibits
- Grandstand events including Demo Derby, Bull Riding and CPRA Rodeo
- Live music in the Fair Garden and nightly entertainment
- Petting zoo, Kid's Corral and family activities
- Fair food vendors, Dairy Bar and local sponsors
Admission and parking are free. The fair returns every August as a nonprofit event supported by Boulder County and community sponsors.
Products on Display
- Carnival rides and midway games
- Livestock and 4-H animal projects
- Grandstand events (Demo Derby, Bull Riding, CPRA Rodeo)
- Live music and nightly entertainment
- Petting zoo and Kid's Corral
- Fair food vendors and Dairy Bar
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