Colorado County Fair 2024. The fair begins on thursday, september 7, and runs through saturday, september 16. The boulder county fair parade will be held on saturday, aug 3, 2024 at 10:00 a.m., starting at roosevelt park, in longmont, colorado.
4k likes · 4,667 were here. Columbus — it’s that time of year again for artwork, baked goods, flowers, canned foods and fun at the annual colorado county fair.