Derby, CT Profile: Facts & Data


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Derby, Connecticut - Basic Facts

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The City of Derby had a population of 12,157 as of July 1, 2022. Derby ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Connecticut. See peer rankings below.

The primary coordinate point for Derby is located at latitude 41.3207 and longitude -73.089 in New Haven County. The formal boundaries for the City of Derby encompass a land area of 5.06 sq. miles and a water area of 0.35 sq. miles. New Haven County is in the Eastern time zone (GMT -5). The elevation is 72 feet.

The City of Derby has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The City of Derby is located within Town of Derby, a minor civil division (MCD) of New Haven County.

Alternate Unofficial Names for Derby: Birmingham, East Huntington.

Jump to... (On This Page!)
  1. Derby 2022 Demographic Data
  2. Growth Rates for Derby (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Connecticut Research Tools (Easy Tools & Current Data)
  3. Connecticut Data Comparison Tool - 2022 Demographics

Derby, CT Data & Demographics (As of July 1, 2022)


Total Population 12,157 (100%)
Population in Households 12,100 (99.5%)
Population in Families 9,207 (75.7%)
Population in Group Quarters1 57 ( 0.5%)
Population Density 2,405
Diversity Index2 68


Median Household Income $60,057
Average Household Income $87,067
% of Income for Mortgage4 22%
Per Capita Income $38,366
Wealth Index5 81


Total HU (Housing Units) 5,712 (100%)
Owner Occupied HU 2,973 (52.0%)
Renter Occupied HU 2,383 (41.7%)
Vacant Housing Units 356 ( 6.2%)
Median Home Value $249,686
Average Home Value $300,126
Housing Affordability Index3 88


Total Households 5,356
Average Household Size 2.26
Family Households 3,171
Average Family Size 3.00
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2020-2022 2022-2027
Population -0.61% -0.31%
Households -0.43% -0.21%
Families   -0.28%
Median Household Income   1.77%
Per Capita Income   3.18%
Owner Occupied HU   0.11%

Derby, CT - Peer Comparisons by Rank and Percentile

The table below compares Derby to the other 215 incorporated cities, towns and CDPs in Connecticut by rank and percentile using July 1, 2022 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 33 85th
Population Density # 45 80th
Median Household Income # 185 14th
Housing Affordability Index # 50 23rd
Per Capita Income # 180 17th
Diversity Index # 23 90th

Additional comparisons and rankings can be made with a VERY EASY TO USE Connecticut Census Data Comparison Tool.

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