Middlefield was incorporated as a separate town only in 1866, being a part of Middletown. Local residents are huge fans of seasonal activities. For example, in winter, they enjoy ice-skating on the ponds. In the summer, local teams gather to play baseball, basketball and soccer. Jungle gym is also a popular activity, as well as golf. Education is a big part of daily life because Middlefield is a part of Regional School District 13. There are seven different schools, including a private preschool and Coginchaug Regional High School. Those who enjoy natural areas often come to visit Wadsworth Falls State Park.