Ansonia, CT Profile: Facts, Map & Data


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Ansonia, Connecticut - Basic Facts

The City of Ansonia had a population of 19,617 as of July 1, 2016. Ansonia 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 Ansonia is located at latitude 41.3442 and longitude -73.0698 in New Haven County. The formal boundaries for the City of Ansonia (see map below) encompass a land area of 6.02 sq. miles and a water area of 0.17 sq. miles. New Haven County is in the Eastern time zone (GMT -5). The elevation is 49 feet.

The City of Ansonia (GNIS ID: 2378267) 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 Ansonia is located within Town of Ansonia, a minor civil division (MCD) of New Haven County.

Beneath the boundary map are tables with Ansonia population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Neighborhood Data

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City of Ansonia, CT Boundary Map

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Ansonia, CT Data & Demographics (As of July 1, 2016)


Total Population 19,617
Population in Households 19,496
Population in Familes 15,877
Population in Group Qrtrs 121
Population Density1 3,259
Diversity Index2 63


Total Households 7,549
Average Household Size 2.58
Family Households 5,038
Average Family Size 3


Total Housing Units 8,196 (100%)
Owner Occupied HU 4,096 (50.0%)
Renter Occupied HU 3,453 (42.1%)
Vacant Housing Units 647 ( 7.9%)
Median Home Value $237,100
Average Home Value $247,028


Median Household Income $55,955
Average Household Income $72,219
Per Capita Income $27,954
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.3% 0.22%
Households 0.08% 0.1%
Families 0.02% 0.04%
Median Household Income   0.98%
Per Capita Income   1.31%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Ansonia, CT - Peer Comparisons by Rank and Percentile

The table below compares Ansonia to the other 142 incorporated cities, towns and CDPs in Connecticut by rank and percentile using July 1, 2016 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 # 30 80th
Population Density1 # 23 85th
Diversity Index2 # 19 87th
Median Household Income # 104 27th
Per Capita Income # 112 22nd

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

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