Since 1851 in September the Middleville Agricultural Society have organized the Middleville Fair as a fall celebration of rural life.

Agriculture is the main focus of the Fair, with animal, flower, fruit and vegetable exhibits and competitions. Crafts, baking and preserving, and heritage displays of antique machinery and household items, as well as old fashioned games and races for the children, fill out the day. There is a ham and bean luncheon, and fair day ends with the renowned home-cooked turkey dinner.