What is the rental vacancy rate in Ronkonkoma, NY?

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

The rental vacancy rate in Ronkonkoma, NY is 10.7% (±8.1 points) (2020–2024 American Community Survey).

The homeowner vacancy rate is 0.0% (±0.8 points).

401 (±153) homes, 6.1% of all housing units, were vacant, a count that includes seasonal homes and homes being sold or rented.

In Ronkonkoma, the rental vacancy rate went from 4.7% in 2015–2019 to 10.7% in 2020–2024 (+6.0 percentage points), not a measurable change.

Figures last updated on November 12, 2026.

Rental vacancy rate: 10.7% (±8.1 points)
Homeowner vacancy rate: 0.0% (±0.8 points)
Vacant homes: 401 (±153)

Vacancy in Ronkonkoma against Suffolk County, its state and the nation

Estimate (90% margin of error)
	Ronkonkoma	Suffolk County	New York	United States
Rental vacancy rate	10.7% (±8.1 points)	4.1% (±0.6 points)	3.8% (±0.1 points)	5.5%
Homeowner vacancy rate	0.0% (±0.8 points)	0.6% (±0.1 points)	1.1% (±0.1 points)	0.9%
Vacant housing units	401 (±153)	68,207 (±1,649)	862,595 (±12,628)	14,547,859

The rental vacancy rate is the share of rental homes that are vacant and for rent; it leaves out homes already rented but not yet moved into, and seasonal homes.

In Ronkonkoma, the rental vacancy rate is not measurably different from Suffolk County (4.1%).

It is not measurably different from New York (3.8%).

It is not measurably different from the national figure (5.5%).

Rental vacancy rate in places near Ronkonkoma

Nearest places with a published estimate, compared with Ronkonkoma
Place	Distance	Rental vacancy rate	Compared with this place
Ronkonkoma	—	10.7% (±8.1 points)	—
Bohemia	1.9 mi	19.3% (±12.6 points)	Not measurably different
Lake Ronkonkoma	1.9 mi	2.7% (±3.0 points)	Not measurably different
Village of Islandia	2.4 mi	29.0% (±39.6 points)	Not measurably different
Holbrook	2.9 mi	3.8% (±3.7 points)	Not measurably different
Nesconset	3.3 mi	0.0% (±5.4 points)	Lower
Village of Lake Grove	3.8 mi	2.5% (±3.8 points)	Not measurably different
North Great River	3.8 mi	0.0% (±17.5 points)	Not measurably different
Central Islip	3.9 mi	12.4% (±6.4 points)	Not measurably different

Nearby places with a measurably lower figure: Nesconset, NY (0.0%).

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

Rental vacancy rate across Suffolk County, place by place

Rank	Place	Rental vacancy rate
7	Bridgehampton	15.7% (±32.0 points)
8	East Marion	15.2% (±18.7 points)
9	Central Islip	12.4% (±6.4 points)
10	Manorville	11.8% (±11.6 points)
11	Center Moriches	11.7% (±19.3 points)
12	Farmingville	11.1% (±10.5 points)
13	Ronkonkoma	10.7% (±8.1 points)
14	Islip (community)	10.6% (±11.3 points)
15	Moriches	10.4% (±8.2 points)
16	East Patchogue	10.3% (±6.4 points)
17	Hauppauge	9.3% (±7.0 points)
18	Gordon Heights	9.1% (±12.8 points)
19	Montauk	7.0% (±7.1 points)

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

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 Islip, whose figures include it.

Survey years: 2020–2024 (American Community Survey 5-year estimates), compared with 2015–2019.

Margins of error are at the 90% confidence level.

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Questions about Ronkonkoma

Is it hard to find a rental in Ronkonkoma?

The rental vacancy rate in Ronkonkoma, NY is 10.7% (±8.1 points); a low rate means few rental homes stand empty and for rent at any time, which usually means more competition for each one.

Is the rental market in Ronkonkoma tighter than it was?

In Ronkonkoma, the rental vacancy rate went from 4.7% in 2015–2019 to 10.7% in 2020–2024 (+6.0 percentage points), not a measurable change.

How many homes are vacant in Ronkonkoma?

An estimated 401 (±153) housing units, 6.1% of the total, including seasonal homes and homes waiting to be sold or rented.

Sources

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 Ronkonkoma CDP, New York (place:63473, in state:36).

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

The 2015–2019 figures are DP04_0005E, DP04_0005M from the 2019 release.

The API needs a free key.

Request a Census API key.

DP04_0005E, DP04_0005M, DP04_0004E, DP04_0004M, DP04_0003E, DP04_0003M, DP04_0003PE, DP04_0003PM

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.