Mendocino County Fair
About this event
The Mendocino County Fair is an agricultural fair in Boonville, California, at Fairgrounds. The 2026 event takes place Sep 18–20, 2026. It holds a 4.6-star rating from 86 Google reviews. Mendocino County Fair will be held on September 18-20, 2026. This fair will feature 4-H shows and exhibits, livestock shows and sale, live entertainment, arts and crafts, exhibits, rides and games, commercial vendors, fair food and more. Hours: 9am-Midnight each day
Location & directions
Fairgrounds, 14400 Hwy 128, Boonville, CA 95415
Frequently asked questions
When is Mendocino County Fair 2026?
Mendocino County Fair takes place Sep 18–20, 2026 in Boonville, California.
Where is Mendocino County Fair held?
Mendocino County Fair is held in Boonville, California, at Fairgrounds, 14400 Hwy 128, Boonville, CA 95415.
What is Mendocino County Fair?
This fair will feature 4-H shows and exhibits, livestock shows and sale, live entertainment, arts and crafts, exhibits, rides and games, commercial vendors, fair food and more.
More agricultural fairs in California
See all 105 →
Recurring3.6(170) Happening nowCalifornia State Fair
California's official state fair at Cal Expo, featuring agriculture exhibits, livestock shows, competitive events, rides, food vendors, and live entertainment.
Recurring4.4(12972) Happening nowOC Fair
One of North America's top attended fairs with over 1 million visitors.
Recurring4.5(2457) Happening nowVentura County Fair
Seaside agricultural fair with livestock, exhibits, rides, food, and entertainment highlighting Ventura County's farming and coastal heritage.
4.5(385) Happening nowAmador County Fair
An agricultural fair in Plymouth.
5(3)In 2 daysSan Francisco Summer Craft Fair
It will feature a diverse group of curated makers, designers, and artists who will sell their unique wares in various categories ranging from stocking stuffers to statement jewelry.
4.4(339)In 3 daysAlameda Point Midsummer Antiques Fair
It will host hundreds of dealers selling everything vintage or antique, 20 years old or older.
Other fairs & festivals near Mendocino County
Explore Mendocino County →
Arnold Labor Day Weekend Arts and Crafts Festival
There will be an array of craftspeople, artists, antique dealers, and all types of food vendors.
Past event4.8(131)Sierra Nevada Arts and Crafts Festival
There will be over 60 booths featuring original handmade art and crafts, antiques, collectibles, and more.
Are you the organizer, or spot something out of date? Help keep this listing accurate.