Is Shirley, NY growing?

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

Shirley, NY had an estimated 28,375 (±2,099) residents in 2020–2024, against 28,583 in 2015–2019.

That is a change of −0.7%, not a measurable change.

Its housing went from 9,084 to 8,804 homes (−3.1%), not a measurable change.

0.3% of today’s homes were built in 2020 or later.

Figures last updated on November 12, 2026.

Residents now: 28,375 (±2,099)
Amount of change: −0.7%
Homes change: −3.1%
Built 2020 or later: 0.3%

Residents and homes in Shirley, 2015–2019 and 2020–2024

2015–2019 and 2020–2024 American Community Survey 5-year estimates
	2015–2019	2020–2024	Amount of change	Verdict
Residents	28,583 (±1,307)	28,375 (±2,099)	−0.7%	Not a measurable change
Housing units	9,084 (±122)	8,804 (±519)	−3.1%	Not a measurable change
Households that rent	17.7% (±3.8 points)	7.8% (±2.2 points)	−9.9 percentage points	Measurable decrease
Median gross rent	$1,878 (±$126)	$2,056 (±$435)	+9.5%	No measurable change after inflation
Median home value	$265,600 (±$8,133)	$424,900 (±$14,998)	+60.0%	Up after inflation

The Census Bureau publishes 2015–2019 dollars in 2019 dollars and 2020–2024 dollars in 2024 dollars.

Prices (the CPI-U, US Bureau of Labor Statistics) rose 22.7% between 2019 and 2024, so a dollar figure’s verdict compares the two after raising the earlier one by that much, using the Census Bureau’s test for a difference.

The two periods do not overlap, as the Census Bureau recommends for 5-year estimates.

Growth in Shirley against Suffolk County, its state and the nation

Change between 2015–2019 and 2020–2024
	Residents	Verdict	Housing units
Shirley	−0.7%	Not a measurable change	−3.1%
Suffolk County	+3.1%	Measurable increase	+0.8%
New York	+1.4%	Measurable increase	+3.2%
United States	+3.1%	Measurable increase	+4.6%

A change in a place’s boundaries between the two periods (an annexation, say) changes its counts as well; the Census Bureau’s figures are for the place as it was drawn in each period.

New homes in Shirley

Housing units by year built, 2020–2024
Year built	Shirley	Suffolk County	New York	United States
2020 or later	0.3% (±0.3 points)	0.7%	0.8%	2.0%
2010 to 2019	2.3% (±1.2 points)	3.7%	5.3%	9.4%
2000 to 2009	5.2% (±1.6 points)	8.3%	6.4%	13.6%

2.6% of the homes in Shirley were built in 2010 or later.

The median age of residents is 40.3 years.

Growth in places near Shirley

Change in residents between 2015–2019 and 2020–2024
Place	Distance	Residents now	Amount of change	Verdict
Shirley	—	28,375	−0.7%	Not a measurable change
Mastic	1.8 mi	15,708	+1.5%	Not a measurable change
Brookhaven (community)	2.0 mi	2,858	−17.3%	Measurable decrease
Poospatuck Reservation	2.3 mi	742	+13.5%	Not a measurable change
Moriches	2.7 mi	2,308	−24.9%	Measurable decrease
Mastic Beach	2.8 mi	16,735	+32.7%	Measurable increase
North Bellport	3.7 mi	11,087	−3.0%	Not a measurable change
Yaphank	3.9 mi	6,934	+9.4%	Not a measurable change
Center Moriches	4.2 mi	9,127	+12.0%	Not a measurable change

Shirley 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), compared with 2015–2019.

Margins of error are at the 90% confidence level.

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Questions about Shirley

Is Shirley growing?

Shirley, NY had an estimated 28,375 residents in 2020–2024 and 28,583 in 2015–2019, a change of −0.7%: not a measurable change by the Census Bureau’s test.

How many homes have been added in Shirley?

The estimated number of housing units went from 9,084 in 2015–2019 to 8,804 in 2020–2024 (−3.1%), not a measurable change.

How much new construction is there in Shirley?

0.3% of homes in Shirley were built in 2020 or later and 2.3% between 2010 and 2019.

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 Shirley CDP, New York (place:67070, in state:36).

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

The 2015–2019 figures are B01003_001E, B01003_001M, B25001_001E, B25001_001M, DP04_0047PE, DP04_0047PM, B25064_001E, B25064_001M, B25077_001E, B25077_001M from the 2019 release.

The API needs a free key.

Request a Census API key.

DP05_0001E, DP05_0001M, DP04_0001E, DP04_0001M, DP04_0017PE, DP04_0017PM, DP04_0018PE, DP04_0018PM, DP05_0018E, DP05_0018M

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.