Mercer County Fairs & Festivals 2026
2 events, all ended for 2026.
EndedFreeAgriculturalFamily
Mercer County 4-H Fair
Free two-day 4-H fair at Howell Living History Farm in Hopewell Township.
Sat–Sun, Jul 25–26Hopewell Township
EndedFamilyFood FestivalMusic
L.E.A.D. Fest State Fair
Carnival and fair at Mercer County Park benefiting L.E.A.D.
2026 date not confirmedWest Windsor