What kinds of homes are in Great River, NY?

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

Great River, NY has 930 (±157) homes (2020–2024 American Community Survey).

That is about 222 homes per square mile of land.

56.8% are detached single-family houses.

10.2% are in buildings of two to four units.

29.9% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 930 (±157)
Detached houses: 56.8%
2–4 unit buildings: 10.2%
5+ unit buildings: 29.9%

Homes in Great River by building size

Housing units by units in structure, 2020–2024
Building type	Great River	Suffolk County	New York	United States
Single-family, detached	56.8% (±9.3 points)	79.7%	41.2%	61.3%
Single-family, attached (townhouse, rowhouse)	3.1% (±3.0 points)	5.9%	5.5%	6.2%
2 units	0.5% (±1.0 points)	2.6%	9.6%	3.4%
3 or 4 units	9.7% (±4.2 points)	2.1%	6.9%	4.3%
5 to 9 units	9.9% (±6.6 points)	2.2%	5.2%	4.5%
10 to 19 units	10.0% (±5.1 points)	2.6%	4.4%	4.3%
20 or more units	10.0% (±7.8 points)	3.6%	25.1%	10.3%
Mobile home	0.0% (±4.5 points)	1.3%	2.1%	5.6%
Boat, RV, van, etc.	0.0% (±4.5 points)	0.0%	0.0%	0.1%

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

It is not measurably different from New York (34.7%).

It is not measurably different from the national figure (19.1%).

Homes in buildings of 5 or more units in places near Great River

Nearest places with a published estimate, compared with Great River
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Great River	—	29.9% (±11.4 points)	—
East Islip	1.1 mi	9.2% (±4.3 points)	Lower
Islip (community)	2.4 mi	11.9% (±4.7 points)	Lower
Islip Terrace	2.6 mi	1.0% (±3.4 points)	Lower
Oakdale	2.7 mi	20.4% (±7.4 points)	Not measurably different
North Great River	3.0 mi	5.7% (±3.2 points)	Lower
West Sayville	3.9 mi	3.0% (±2.0 points)	Lower
Bay Shore	4.0 mi	20.0% (±3.5 points)	Not measurably different
West Bay Shore	4.5 mi	0.0% (±4.5 points)	Lower

Nearby places with a measurably lower figure: East Islip, NY (9.2%), Islip (community), NY (11.9%), Islip Terrace, NY (1.0%).

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
1	Moriches	45.9% (±11.2 points)
2	Middle Island	34.7% (±7.4 points)
3	Tuckahoe (community)	30.6% (±12.2 points)
4	Great River	29.9% (±11.4 points)
5	North Amityville	24.2% (±5.4 points)
6	Coram	23.1% (±3.5 points)
7	East Farmingdale	21.9% (±6.0 points)
8	Yaphank	21.3% (±11.2 points)
9	Oakdale	20.4% (±7.4 points)
10	Bay Shore	20.0% (±3.5 points)

Showing 10 of 112 places in Suffolk County, ranked from highest to lowest.

Great River 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 Islip, 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 Great River

How many homes are in Great River?

Great River, NY has an estimated 930 (±157) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Great River houses or apartments?

56.8% are detached houses and 3.1% attached houses, while 40.1% are in buildings of two or more units.

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

10.2% of homes in Great River 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 — Great River 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 Great River CDP, New York (place:30235, 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.