What kinds of homes are in Commack, NY?

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

Commack, NY has 11,878 (±345) homes (2020–2024 American Community Survey).

That is about 970 homes per square mile of land.

93.3% are detached single-family houses.

0.5% are in buildings of two to four units.

3.1% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 11,878 (±345)
Detached houses: 93.3%
2–4 unit buildings: 0.5%
5+ unit buildings: 3.1%

Homes in Commack by building size

Housing units by units in structure, 2020–2024
Building type	Commack	Suffolk County	New York	United States
Single-family, detached	93.3% (±1.1 points)	79.7%	41.2%	61.3%
Single-family, attached (townhouse, rowhouse)	2.9% (±0.7 points)	5.9%	5.5%	6.2%
2 units	0.2% (±0.2 points)	2.6%	9.6%	3.4%
3 or 4 units	0.3% (±0.3 points)	2.1%	6.9%	4.3%
5 to 9 units	0.6% (±0.4 points)	2.2%	5.2%	4.5%
10 to 19 units	1.4% (±0.6 points)	2.6%	4.4%	4.3%
20 or more units	1.1% (±0.5 points)	3.6%	25.1%	10.3%
Mobile home	0.2% (±0.2 points)	1.3%	2.1%	5.6%
Boat, RV, van, etc.	0.0% (±0.4 points)	0.0%	0.0%	0.1%

In Commack, the share of homes in buildings of five or more units is lower than in Suffolk County (8.4%).

It is also lower than in New York (34.7%).

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

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

Nearest places with a published estimate, compared with Commack
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Commack	—	3.1% (±0.9 points)	—
Elwood	2.9 mi	0.8% (±1.5 points)	Lower
East Northport	3.2 mi	2.6% (±1.9 points)	Not measurably different
Kings Park	3.6 mi	9.8% (±3.6 points)	Higher
Smithtown (community)	3.6 mi	6.6% (±2.2 points)	Higher
Dix Hills	4.0 mi	0.7% (±0.8 points)	Lower
Hauppauge	4.1 mi	13.0% (±2.8 points)	Higher
Greenlawn	4.5 mi	6.5% (±2.3 points)	Higher
Fort Salonga	4.7 mi	0.7% (±2.0 points)	Lower

Nearby places with a measurably lower figure: Elwood, NY (0.8%), Dix Hills, NY (0.7%), Fort Salonga, NY (0.7%).

Nearby places with a measurably higher figure: Kings Park, NY (9.8%), Smithtown (community), NY (6.6%), Hauppauge, NY (13.0%).

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 Suffolk County, place by place

Rank	Place	Homes in buildings of 5 or more units
59	East Quogue	4.0% (±3.0 points)
60	Center Moriches	3.9% (±2.6 points)
61	Medford	3.8% (±1.7 points)
62	Huntington (community)	3.7% (±1.5 points)
63	East Hampton North	3.6% (±2.0 points)
64	Brookhaven (community)	3.5% (±7.5 points)
65	Commack	3.1% (±0.9 points)
66	West Sayville	3.0% (±2.0 points)
67 (tie)	Eatons Neck	2.9% (±11.5 points)
67 (tie)	Southold (community)	2.9% (±2.3 points)
67 (tie)	Wading River	2.9% (±3.9 points)
70	East Marion	2.7% (±5.7 points)
71 (tie)	East Northport	2.6% (±1.9 points)

Showing 13 of 112 places in Suffolk County, ranked from highest to lowest.

Commack is a census-designated place: an unincorporated community the Census Bureau draws for statistics, with no municipal government of its own.

It lies inside the Town of Smithtown, whose figures include it.

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 Commack

How many homes are in Commack?

Commack, NY has an estimated 11,878 (±345) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Commack houses or apartments?

93.3% are detached houses and 2.9% attached houses, while 3.6% are in buildings of two or more units.

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

0.5% of homes in Commack 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 — Commack CDP, New York

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 Commack CDP, New York (place:17530, in state:36).

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.