| Name | Middlesex County |
| State | Connecticut |
| FIPS Code | 09007 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 165,639 |
| Population Growth Rate(2000-2022) | -0.86% |
| Majority Ethnicity | White 85.9% |
| Public School Majority Ethnicity | White 76% |
| Partisan Voting Index | Democratic:+8 |
| Unemployment Rate | 4.7% |
| Race/Ethnicy | Percentage of Population (2018) |
|---|---|
| White | 85.9% |
| African American | 5.13% |
| Hispanic | 5.83% |
| Asian | 2.98% |
| Native American | 0.16% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicy | Percentage of Public School Students (2018) |
|---|---|
| White | 76.39% |
| African American | 5.91% |
| Hispanic | 10.62% |
| Asian | 3.03% |
| Native American | 0.16% |
| Hawaiin/Pacific Islander | 0.07% |