Middlefield is a town in Hampshire County, Massachusetts, United States.

[1] It is part of the Springfield, Massachusetts Metropolitan Statistical Area.

There were 263 housing units at an average density of 10.9 per square mile (4.2/km2).

Of all households 17.4% were made up of individuals, and 6.1% had someone living alone who was 65 years of age or older.

Glendale Brook provides one of Massachusetts' most impressive[peacock prose] waterfalls.