Mississippi Valley Fairgrounds Events 2025. The mississippi valley fair returns to davenport, iowa, from july 29th to august 3rd, 2025, and we’re excited to announce some of our headlining acts. Brick convention is an event like no other.

Hundreds of thousands gather here every summer for the mississippi valley fair, one of the largest celebrations in the quad cities. Free admission, lots of free parking, friday set.