Tool
Compare places
Put up to four U.S. cities, towns or census-designated places side by side on 29 figures: 22 measures from the ACS 2020-2024 5-year estimates, each with its margin, and their 2025 population estimate, growth, density, new homes and housing costs against income. A filled square marks a figure that differs from the first place by more than both margins of error allow; without it, the survey cannot tell the two apart.
How do Groton, CT compare?
| Figure | Groton, CT |
|---|---|
| Residents, July 2025 (estimate) | 39,138 |
| Change since April 2020 | +1.9% |
| Residents counted in the 2020 Census | 38,411 |
| Residents per square mile (2020) | 1,235 |
| Homes permitted in 2025 per 1,000 residents | 0.5 |
| Median home value ÷ median household income | 3.9 years of income |
| A year of median rent ÷ median income of all households (renters usually earn less) | 21.8% |
| Measure | Groton, CT |
|---|---|
| Total population | 38,130±86 |
| Median age | 36.8±2.1 |
| Hispanic or Latino (any race) | 12.1%±1.9 pts |
| White alone, not Hispanic | 69.9%±2.5 pts |
| Black or African American alone, not Hispanic | 4.7%±1.2 pts |
| Asian alone, not Hispanic | 6.6%±1.3 pts |
| Born outside the United States | 8.3%±1.5 pts |
| Bachelor's degree or higher (age 25+) | 42.7%±2.9 pts |
| Median household income | $88,284±$5,289 |
| Per capita income | $51,281±$2,940 |
| People below the poverty line | 10.6%±1.9 pts |
| Unemployment rate | 5.2%±1.8 pts |
| Median home value (owner-occupied) | $340,100±$17,454 |
| Median gross rent | $1,602±$55 |
| Renters paying 35% or more of income on rent | 38.8%±4.8 pts |
| Owner-occupied homes | 53.4%±2.9 pts |
| Built 2020 or later | 0.8%±0.4 pts |
| Worked from home | 13.6%±2.4 pts |
| Drove alone to work | 70.5%±3.0 pts |
| Public transportation | 0.4%±0.3 pts |
| Mean travel time to work | 19.3 min±1.1 |
| No health insurance coverage | 4.2%±1.1 pts |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census Bureau population estimates, Vintage 2025; 2020 Census; Building Permits Survey 2025 · Check it at data.census.gov