What kinds of homes are in Ansonia, CT?

Name: Types of homes in Ansonia, CT, 2020–2024
Creator: US Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Ansonia, CT has 7,932 (±519) homes (2020–2024 American Community Survey).

That is about 1,318 homes per square mile of land.

48.2% are detached single-family houses.

37.0% are in buildings of two to four units.

10.2% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 7,932 (±519)
Detached houses: 48.2%
2–4 unit buildings: 37.0%
5+ unit buildings: 10.2%

Homes in Ansonia by building size

Housing units by units in structure, 2020–2024
Building type	Ansonia	Naugatuck Valley Planning Region	Connecticut	United States
Single-family, detached	48.2% (±5.0 points)	59.0%	58.6%	61.3%
Single-family, attached (townhouse, rowhouse)	4.5% (±1.8 points)	7.6%	6.5%	6.2%
2 units	27.3% (±5.7 points)	8.4%	7.5%	3.4%
3 or 4 units	9.7% (±3.1 points)	8.8%	8.1%	4.3%
5 to 9 units	4.0% (±2.1 points)	5.5%	4.9%	4.5%
10 to 19 units	3.2% (±2.2 points)	3.4%	3.5%	4.3%
20 or more units	3.0% (±1.5 points)	6.4%	10.2%	10.3%
Mobile home	0.1% (±0.2 points)	0.8%	0.7%	5.6%
Boat, RV, van, etc.	0.0% (±0.5 points)	0.1%	0.0%	0.1%

In Ansonia, the share of homes in buildings of five or more units is lower than in Naugatuck Valley Planning Region (15.3%).

It is also lower than in Connecticut (18.6%).

It is lower than the national figure (19.1%).

Homes in buildings of 5 or more units in places near Ansonia

Nearest places with a published estimate, compared with Ansonia
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Ansonia	—	10.2% (±3.4 points)	—
Derby	1.4 mi	18.5% (±5.3 points)	Higher
Seymour	2.9 mi	19.3% (±5.9 points)	Higher
Woodbridge	3.7 mi	5.6% (±3.4 points)	Not measurably different
Shelton	4.5 mi	14.4% (±2.3 points)	Higher
Orange	4.7 mi	6.3% (±2.0 points)	Not measurably different
Orange (community)	4.7 mi	6.3% (±2.0 points)	Not measurably different
East Village	6.2 mi	0.0% (±5.4 points)	Lower
Oronoque	6.2 mi	5.1% (±3.2 points)	Lower

Nearby places with a measurably lower figure: East Village, CT (0.0%), Oronoque, CT (5.1%).

Nearby places with a measurably higher figure: Derby, CT (18.5%), Seymour, CT (19.3%), Shelton, CT (14.4%).

Distance is measured in a straight line between the Census Bureau’s internal points for each place.

Homes in buildings of 5 or more units across Naugatuck Valley Planning Region, place by place

Rank	Place	Homes in buildings of 5 or more units
3	Seymour	19.3% (±5.9 points)
4	Derby	18.5% (±5.3 points)
5	Naugatuck	17.1% (±3.7 points)
6	Thomaston	14.5% (±6.2 points)
7	Shelton	14.4% (±2.3 points)
8	Woodbury	10.6% (±3.7 points)
9	Ansonia	10.2% (±3.4 points)
10	Cheshire	8.7% (±2.0 points)
11 (tie)	Middlebury	8.4% (±7.6 points)
11 (tie)	Southbury	8.4% (±2.4 points)
13	Wolcott	7.5% (±3.1 points)
14	Plymouth	6.9% (±2.4 points)
15	Bethlehem	5.7% (±5.6 points)

Showing 13 of 19 places in Naugatuck Valley Planning Region, ranked from highest to lowest.

Survey years: 2020–2024 (American Community Survey 5-year estimates).

Margins of error are at the 90% confidence level.

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Questions about Ansonia

How many homes are in Ansonia?

Ansonia, CT has an estimated 7,932 (±519) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Ansonia houses or apartments?

48.2% are detached houses and 4.5% attached houses, while 47.2% are in buildings of two or more units.

How many two-family and small multifamily homes are in Ansonia?

37.0% of homes in Ansonia are in buildings of two to four units, the small rental buildings that are often owner-occupied.

Sources

Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Ansonia town, Naugatuck Valley Planning Region, Connecticut

To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Ansonia town, Naugatuck Valley Planning Region, Connecticut (county subdivision:01220, in state:09 county:140).

Each estimate (E or PE) has a margin of error beside it (M or PM).

The API needs a free key.

Request a Census API key.

DP04_0001E, DP04_0001M, DP04_0007PE, DP04_0007PM, DP04_0008PE, DP04_0008PM, DP04_0009PE, DP04_0009PM, DP04_0010PE, DP04_0010PM, DP04_0011PE, DP04_0011PM, DP04_0012PE, DP04_0012PM, DP04_0013PE, DP04_0013PM, DP04_0014PE, DP04_0014PM, DP04_0015PE, DP04_0015PM

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.