| Place Name | Middletown |
| Place Type | Census Designated Place |
| ZIP Code(s) | 48817 48867 |
| County | Shiawassee County |
| Area Code(s) | 989 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 750 |
| Population Growth Rate (2010-19) | -8.03% |
| Majority Ethnicity | White 97.13% |
| Metro/Micro Stats Area | Lansing-East Lansing, MI |
| US Congressional District(s) | Michigan 4th |
| State House Districts | 85 |
| State Senate Districts | 24 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 97.13% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 2.87% |