| Place Name | Middlefield |
| Place Type | Town |
| ZIP Code(s) | 01243 |
| County | Hampshire County |
| Area Code(s) | 413 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2021) | 342 |
| Majority Ethnicity | White 88.79% |
| Metro/Micro Stats Area | Springfield, MA |
| US Congressional District(s) | Massachusetts 1st |
| State House Districts | 1st Franklin |
| State Senate Districts | Berkshire, Hampshire, Franklin and Hampden |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 88.79% |
| African American | 0% |
| Hispanic | 2.8% |
| Asian | 0.93% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 7.48% |