What kinds of homes are in Lake Ronkonkoma, NY?

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

Lake Ronkonkoma, NY has 7,104 (±561) homes (2020–2024 American Community Survey).

That is about 1,566 homes per square mile of land.

77.2% are detached single-family houses.

3.1% are in buildings of two to four units.

15.6% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 7,104 (±561)
Detached houses: 77.2%
2–4 unit buildings: 3.1%
5+ unit buildings: 15.6%

Homes in Lake Ronkonkoma by building size

Housing units by units in structure, 2020–2024
Building type	Lake Ronkonkoma	Suffolk County	New York	United States
Single-family, detached	77.2% (±3.4 points)	79.7%	41.2%	61.3%
Single-family, attached (townhouse, rowhouse)	4.0% (±1.9 points)	5.9%	5.5%	6.2%
2 units	1.6% (±1.2 points)	2.6%	9.6%	3.4%
3 or 4 units	1.5% (±1.2 points)	2.1%	6.9%	4.3%
5 to 9 units	3.0% (±1.4 points)	2.2%	5.2%	4.5%
10 to 19 units	3.6% (±1.0 points)	2.6%	4.4%	4.3%
20 or more units	9.0% (±2.0 points)	3.6%	25.1%	10.3%
Mobile home	0.1% (±0.2 points)	1.3%	2.1%	5.6%
Boat, RV, van, etc.	0.0% (±0.6 points)	0.0%	0.0%	0.1%

In Lake Ronkonkoma, the share of homes in buildings of five or more units is higher 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 Lake Ronkonkoma

Nearest places with a published estimate, compared with Lake Ronkonkoma
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Lake Ronkonkoma	—	15.6% (±2.6 points)	—
Village of Lake Grove	1.9 mi	15.7% (±5.3 points)	Not measurably different
Ronkonkoma	1.9 mi	13.8% (±3.5 points)	Not measurably different
Nesconset	2.3 mi	10.3% (±4.7 points)	Not measurably different
Centereach	3.1 mi	6.4% (±2.1 points)	Lower
Holbrook	3.4 mi	11.8% (±2.7 points)	Lower
Village of Islandia	3.4 mi	8.4% (±5.2 points)	Lower
St. James	3.8 mi	9.1% (±4.4 points)	Lower
Holtsville	3.8 mi	12.8% (±2.5 points)	Not measurably different

Nearby places with a measurably lower figure: Centereach, NY (6.4%), Holbrook, NY (11.8%), Village of Islandia, NY (8.4%).

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 Suffolk County, place by place

Rank	Place	Homes in buildings of 5 or more units
9	Oakdale	20.4% (±7.4 points)
10	Bay Shore	20.0% (±3.5 points)
11	East Patchogue	19.2% (±3.8 points)
12	East Moriches	17.9% (±5.3 points)
13	Greenport West	16.8% (±8.9 points)
14	Bayport	15.8% (±4.3 points)
15	Lake Ronkonkoma	15.6% (±2.6 points)
16	Melville	15.0% (±3.2 points)
17	Sayville	14.0% (±3.8 points)
18	Ronkonkoma	13.8% (±3.5 points)
19	Central Islip	13.7% (±2.7 points)
20	Port Jefferson Station	13.5% (±5.8 points)
21	Hauppauge	13.0% (±2.8 points)

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

Lake Ronkonkoma 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 Brookhaven, 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 Lake Ronkonkoma

How many homes are in Lake Ronkonkoma?

Lake Ronkonkoma, NY has an estimated 7,104 (±561) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Lake Ronkonkoma houses or apartments?

77.2% are detached houses and 4.0% attached houses, while 18.7% are in buildings of two or more units.

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

3.1% of homes in Lake Ronkonkoma 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 — Lake Ronkonkoma 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 Lake Ronkonkoma CDP, New York (place:40838, 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.