Jerome County Fairgrounds by Website Administrator|Published November 6, 2024 Location 205 N Fir StreetJeromeID83338 Next Event Idaho State Festival - Dance Across the Bridge - June 13, 2025 - June 14, 2025 - All Day Loading Map.... Jerome County Fairgrounds205 N Fir Street - JeromeEvents 42.727015 -114.530202 Upcoming Events Idaho State Festival - Dance Across the Bridge - June 13, 2025 - June 14, 2025 - All Day