On December 21, 1866, the Middlefield Methodist Church was dedicated in commemoration of the hundredth anniversary of Methodism. The Middlefield Congregational Church, built on the town green in 1842, stood across the road. By the turn of the century, the number of Congregationalists had decreased. In 1921 the Congregational and Methodist churches became federated and the united congregation rotated services between the two churches each month. After almost a decade this practice was deemed too expensive, so services were afterwards held only at the Methodist Church, the older Congregational edifice being considered unsafe. It was eventually torn down in 1942. Additions have been made over the years to the current Federated Church building, which is located at 402 Main Street.