Events in Collinsville

Some of the most authentic and eclectic events in the Great Rivers & Routes region are held in Collinsville.

Thousands of people pack the streets of Uptown Collinsville to celebrate their Italian heritage – at least they're Italian on that day – for the Italian Fest every September. In the summer, it's all horseradish all the time at the Horseradish Festival, a celebration of the city's status as the Horseradish Capital of the World. The events start there, but they don't end there. Take a look at more here.

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May 24th, 2026

Collinsville Memorial Day Festival
Celebrate Memorial Day at Collinsville’s 7th Annual Fireworks Festival! This free, family-friendly event is the perfect way to kick off the summer season with live music, food trucks, vendors, kids activities…
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May 30th, 2026

Dinosaur Adventure at Gateway Center
Experience the prehistoric age and encounter your favorite dinosaurs up close! Dinosaur Adventure is a one-of-a-kind exhibit featuring realistic, life-sized dinosaurs that come alive with their life-like movement and roars. As part…
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May 30th, 2026

Barnyard Buddies at Willoughby Farm
Calling all future farmers! Barnyard Buddies at Willoughby Heritage Farm gives kids ages 7 and up the chance to experience farm life firsthand on Saturday mornings from April through October.Each month features…
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Jun 5th, 2026

International Horseradish Festival
The International Horseradish Festival is the hottest event in Collinsville- celebrate the Horseradish Capitol of the World with food, fun, and music! The fest spans several city blocks where visitors will have…
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Jun 5th, 2026

DieCon at Gateway Center 2026
DieCon is dedicated to promote the Adventure Game Hobby. All facets of adventure gaming are represented at the convention. Role-playing games, RPGA sanctioned games, CCG/TCG games and demos, board games, miniature (Historical…
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Jun 8th, 2026

Willoughby Farm Animal Adventure Summer Camp
Join Willoughby Farm for an unforgettable week of hands-on animal experiences, learning, and fun! Campers will explore farm life, wildlife, animal careers, and the important role animals play in our lives through…
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Jun 12th, 2026

Rubber Stamp Getaway at The Gateway Center
Love stamps? Come to Gateway Center June 12-13 for a stamp-stravaganza- shop for art and craft supplies, take part in a card-making contest, listen to lecture, take classes, and stay for some…
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