Great Jones County Fair 2025 Concerts. Special guest john morgan will open the show that night at 8 p.m. John morgan is coming to great jones county fair in monticello on jul 19, 2025.

This fair will include 4h/ffa shows and exhibits, livestock shows and sale, mutton bustin, live music, kiddie dairy show, kid s zone, photo contest, truck and tractor pulls, carnival, demo. Monticello, iowa — the great jones county fair is bringing three popular stars of country music to monticello in 2025.