Griswold is located in Southeastern Connecticut Planning Region, Connecticut. Griswold has a 2026 population of 11,779. Griswold is currently growing at a rate of 0.41% annually and its population has increased by 3.13% since the most recent census, which recorded a population of 11,422 in 2020.
The median household income in Griswold is $78,719 with a poverty rate of 7.64%. The median age in Griswold is 48.1 years: 46.9 years for males, and 48.8 years for females. For every 100 females there are 100.5 males.
Data after 2023 is projected based on recent change
Overall: 48.1 years
Female: 48.8 years
Male: 46.9 years
There are 9,399 adults, (2,048 of whom are seniors) in Griswold.
Female: 5,750 (49.9%)
Male: 5,780 (50.1%)
The racial composition of Griswold includes 86.92% White, and smaller percentages for Asian, Native American, other race, Black or African American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 10,022 | 86.92% |
| Two or more races | 1,002 | 8.69% |
| Asian | 250 | 2.17% |
| Native American | 138 | 1.2% |
| Other race | 93 | 0.81% |
| Black or African American | 25 | 0.22% |
Griswold 's average per capita income is $51,799. Household income levels show a median of $78,719. The poverty rate stands at 7.64%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $116,750 | - |
| Families | $89,280 | $106,210 |
| Households | $78,719 | $95,629 |
| Non Families | $63,372 | $70,605 |
Average Income
Median Household Income
Poverty Rate