Derby is a city located in Naugatuck Valley Planning Region, Connecticut. Derby has a 2025 population of 13,065 . Derby is currently growing at a rate of 1.16% annually and its population has increased by 6.12% since the most recent census, which recorded a population of 12,312 in 2020.
The average household income in Derby is $92,848 with a poverty rate of 9.25%. The median age in Derby is 46.3 years: 46.5 years for males, and 46.2 years for females. For every 100 females there are 89.5 males.
Data after 2023 is projected based on recent change
The racial composition of Derby includes 68.54% White, 13.35% Black or African American, 8.48% other race, and smaller percentages for Asian, Native American and multiracial populations.
White (68.54%)
Black or African American (13.35%)
Other race (8.48%)
Two or more races (7.39%)
Asian (1.92%)
Native American (0.32%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 8,471 | 68.54% |
| Black or African American | 1,650 | 13.35% |
| Other race | 1,048 | 8.48% |
| Two or more races | 913 | 7.39% |
| Asian | 237 | 1.92% |
| Native American | 40 | 0.32% |
Married
Widowed
Divorced
Separated
Never Married
Derby's average per capita income is $55,046. Household income levels show a median of $76,263. The poverty rate stands at 9.25%.
Name | Median | Mean |
|---|---|---|
| Married Families | $114,271 | - |
| Families | $107,074 | $119,892 |
| Households | $76,263 | $92,848 |
| Non Families | $38,511 | $55,083 |
Average Income
Median Household Income
Poverty Rate