| Place Name | Colchester (town) |
| Place Type | Town |
| County | New London County |
| Area Code(s) | 860,959 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2021) | 15,552 |
| Majority Ethnicity | White 90.76% |
| Metro/Micro Stats Area | Norwich-New London, CT |
| US Congressional District(s) | Connecticut 2nd |
| State House Districts | 34,48 |
| State Senate Districts | 33 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 90.76% |
| African American | 2.94% |
| Hispanic | 0% |
| Asian | 1.24% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 5.06% |