Demographics & People — Colchester, Connecticut
Population Overview
| Population (Census) | 4,624 |
| Estimated 2026 | ~4,900 |
| Median Age | 54.2 |
| Total Households | 2,158 |
| Family Households | 1,339 |
| Average Household Size | 2.07 |
| Diversity Index | 0.1128 (relatively homogeneous) |
Race & Ethnicity
| White | 4,301 |
| Black or African American | 48 |
| Asian | 32 |
| Hispanic or Latino | 190 |
Heritage & Ancestry
| Group | Count |
| Irish | 1,011 |
| English | 951 |
| Italian | 771 |
| German | 563 |
| Unclassified or not reported | 491 |
| American | 433 |
| Other groups | 425 |
| Polish | 413 |
| French (except Basque) | 406 |
| Scottish | 316 |
Language
| English Only | 4,176 |
| Spanish | 139 |
| Population 5+ | 4,401 |
Veterans
| Veterans | 382 |
| Population 18+ | 3,924 |
Commuting
| Mean Commute Time | 31.5 minutes |
| Work from Home | 16.0% |
| Commuter Profile | N/A |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Colchester, Connecticut.