Demographics & People — Groton, Connecticut

Population Overview

Population (Census)9,343
Estimated 2026~9,800
Median Age39.0
Total Households4,695
Family Households2,549
Average Household Size1.99
Diversity Index0.4807 (moderately diverse)

Race & Ethnicity

White6,494
Black or African American851
Asian509
Hispanic or Latino1,495

Heritage & Ancestry

GroupCount
Other groups2,453
Unclassified or not reported1,940
Irish1,561
Hispanic: Hispanic or Latino1,241
English1,216
Italian1,084
German1,069
Polish630
Hispanic: Puerto Rican604
French (except Basque)371

Language

English Only8,055
Spanish447
Population 5+9,031

Veterans

Veterans559
Population 18+7,602

Commuting

Mean Commute Time17.5 minutes
Work from Home4.8%
Commuter ProfileN/A
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Groton, Connecticut.