Algonquin Founders Day 2025 Date. Our theme this year was voted on and it will be “algonquin founders days goes to the movies” we are. Algonquin founders’ days runs are coming up!

Algonquin founders’ days festival is happening on sunday, jul 28, 2025 from 7:00am to 10:00pm in algonquin, il. Be a star by marching with us at the founders’s day parade!