L Wayne Kelly

Great Jones County Fair 2025 News. This year's grandstand lineup includes: The great jones county fair will be taking over monticello this week, and we could not be more excited!

Pitbull is one of the main headlines this weekend at the great jones county fair, which began wednesday in monticello. The 2025 great jones county fair in monticello, iowa will get off to a roaring start with the hottest female act in country music.