Derby, Connecticut Demographics & Population 2026
During the 2020–2024 ACS period, Derby, Connecticut had a total population of 12,487, the 33rd largest city in Connecticut, with a median household income of $79,500, which is 17% lower than the state average. The poverty rate is 10.8%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Derby Quick Facts
How Derby Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 12,359 | 12,487 | +1.0% |
| Median household income | $76,263 | $79,500 | +4.2% |
| Median home value | $242,300 | $256,700 | +5.9% |
How Derby Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A diverse community with significant representation from multiple racial and ethnic groups.
State average: 57 | National average: 61
Education
Educational Attainment (Adults 25+)
Derby Rankings in Connecticut
Explore Connecticut Rankings
Cities Similar to Derby
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Windsor Locks | 12,579 | $81,205 | $258,800 | 28.6% | 10.9% |
| Bethel | 11,404 | $90,848 | $378,300 | 38.4% | 5.8% |
| Groton | 9,490 | $79,577 | $306,600 | 38.8% | 18.6% |
| Kensington | 9,962 | $109,447 | $330,400 | 40.6% | 3.2% |
| Oakville | 9,276 | $95,515 | $280,500 | 30.8% | 2.4% |
Population Overview
Derby is a small city located in Connecticut. The total population is 12,487. It ranks as the 33rd most populous out of 214 Census-designated places in Connecticut.
Age Demographics
The median age in Derby is 46.4 years. This is 13% higher than the state median of 41.1 years. Only 14.6% of residents are under 18, indicating fewer families with children.
Economy, Income & Housing
The median household income in Derby is $79,500. This is 17% lower than the state median of $95,781. It is also 2% lower than the national median of $80,734. The poverty rate stands at 10.8%. This is 7% higher than the state poverty rate of 10.0%. The unemployment rate is 5.6%. The median home value is $256,700. Housing costs are 30% lower than the state median of $366,900. The home-value-to-income ratio is 3.2x. 61.9% of occupied housing units are owner-occupied. This homeownership rate is 7% lower than the state average of 66.5%.
Race & Ethnicity
The largest racial or ethnic group in Derby is White (non-Hispanic), making up 57.6% of the population. Hispanic or Latino residents account for 22.4%.
Education
35.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 16% lower than the state rate of 42.5%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 88.1%. Notably, 15.9% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Derby, Connecticut is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Connecticut state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 214 Census-designated places in Connecticut. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Derby, Connecticut?
Derby, Connecticut has a population of 12,487 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Derby, CT?
The median household income in Derby is $79,500, which is 2% lower than the national median of $80,734.
What is the poverty rate in Derby, CT?
The poverty rate in Derby is 10.8%. This means approximately 1,337 residents live below the federal poverty line.
What is the racial makeup of Derby, Connecticut?
Derby's population is 57.6% White, 11.3% Black, 22.4% Hispanic/Latino, and 2.5% Asian.
What is the median home value in Derby, CT?
The median home value in Derby is $256,700. The home-value-to-income ratio is 3.2x.
How educated is Derby, Connecticut?
35.6% of adults (25+) in Derby hold a bachelor's degree or higher, and 15.9% hold a graduate or professional degree.