HomeNew YorkSuffolk CountyIslip CDP
Islip CDP, New York: commercial real estate data.
Islip CDP is a Census CDP of 17,362 people across 4.75 square miles of land, in Suffolk County. Median household income is $120,909, 84.9 percent of occupied homes are owned, and the SBA record carries 22 7(a) approvals to borrowers here worth $11.8 m.
80 sourced place values · tier FULL · 9 sections · underlined figures are computed by MMCG Analytics, not published by the agency
Islip
What Islip is
- Census place typeCDP
- Land area4.75 sq mi
- Water area0.65 sq mi
- Population per square mile of land3,656
- County holding the largest share of its areaSuffolk County, 100.0 percent
US Census Bureau, cartographic boundary file, places, 2024 vintage. US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Islip
How many people live in Islip
- Population17,362
- Median age43.9
- Population under 183,438
- Share under 1819.8 percent
- Population 65 and over3,322
- Share 65 and over19.1 percent
- Households6,036
- Family households4,307
- Share of households that are families71.4 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Islip
Income and work in Islip
- Median household income$120,909
- Per capita income$49,053
- Civilian labor force9,266
- Employed8,733
- Unemployed533 plus or minus 246
- Unemployment rate5.8 percent plus or minus 2.6
- Adults 25 and over12,746
- Adults 25 and over with a high school diploma or higher86.6 percent
- Adults 25 and over with a bachelor degree or higher34.3 percent
- Adults 25 and over with a graduate degree13.1 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Islip
Housing in Islip
- Housing units6,388
- Occupied units6,036
- Vacant units352 plus or minus 162
- Vacancy rate5.5 percent plus or minus 2.5
- Owner occupied5,124
- Renter occupied912 plus or minus 232
- Ownership rate84.9 percent
- Median owner-occupied home value$542,200
- Median gross rent, monthly$2,235
- Annual rent as a share of median income22.2 percent
- Single family units5,143
- Share single family80.5 percent
- Units in buildings of two or more1,135 plus or minus 346
- Share in buildings of two or more17.8 percent plus or minus 5.3
- Mobile homes110 plus or minus 104
- Median year structure built1966
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Islip
How Islip gets to work
- Workers 16 and over who commute7,697
- Commuting under 15 minutes1,618
- Share commuting under 15 minutes21.0 percent
- Commuting 30 minutes or more3,274
- Share commuting 30 minutes or more42.5 percent
- Drove alone78.1 percent
- Carpooled7.2 percent plus or minus 1.9
- Public transport2.5 percent plus or minus 1.1
- Walked1.3 percent plus or minus 0.9
- Worked from home10.2 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Islip
SBA loans in Islip (7(a))
- Approvals22
- Gross approval$11,850,000
- Average approval$538,636
- Median approval$220,000
- Ninetieth percentile approval$1,440,000
- Largest approval$4,524,000
- Jobs supported172
- Jobs per approval7.8
- Loans with a final outcome3
- Paid in full3
- Charged off0
- Median term120 months
- Share on real estate terms of 20 years or more18.2 percent
- Share to franchises13.6 percent
- Distinct lenders12
- Distinct industries by NAICS14
A charge-off rate is not published here. only 3 resolved loans, too few to publish a rate, and a rate over that few outcomes would move several points on one loan.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
Islip
SBA loans in Islip (504)
- Approvals3
- Gross approval$1,215,000
- Average approval$405,000
- Median approval$288,000
- Largest approval$653,000
- Jobs supported8
- Loans with a final outcome0
- Charged off0
- Median term300 months
- Distinct CDCs1
US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.
Islip
Flood risk in Islip
- Listed NFIP communities1
- Of those, participating1
- NFIP community number365337
- Currently effective map date09/25/09
This community carries no Community Rating System class, so no CRS premium discount applies to it.
FEMA, National Flood Insurance Program Community Status Book, Community Status Book, as retrieved.
Suffolk County, not Islip
Suffolk County context, not Islip figures
These are Suffolk County figures. There is no place level equivalent published for any of them, so they are shown as the county backdrop and never as Islip measurements.
- Establishments in Suffolk County50,748
- Employment at those establishments, Suffolk County592,580
- Covered employment, Suffolk County679,594
- Average annual pay, Suffolk County$79,121
- Average weekly wage, Suffolk County$1,522
- Housing units permitted, Suffolk County1,407
- Of those, single family, Suffolk County1,137
- County product, 2024, Suffolk County$139,014,125,000
- County product change over the prior year, Suffolk County5.9 percent
- Average income of an arriving household, Suffolk County$144,254
Every figure in this section is published for Suffolk County as a whole and is not a measurement of Islip. It is here because a county backdrop is what a credit committee reads a place against, and it is labelled so that it can never be quoted as the place's own.
US Census Bureau, County Business Patterns, 2023. US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages. US Census Bureau, Building Permits Survey, 2024 annual. US Bureau of Economic Analysis, Regional, table CAGDP2, CAGDP2, through 2024. US Internal Revenue Service, Statistics of Income county migration flows, 2021 to 2022 filing years.
Coverage
What this page does not hold.
Every item below could be filled with a plausible figure. None of them is. On a page a lender may read, a number that cannot be traced is worse than an absence, so the absences are named.
- Parcel level detail, zoning and flood zone at an address are resolved in the platform, not on this page.
SBA figures count approvals to borrowers whose address is in the place. They are not approvals for projects inside the place boundary: the tape records a borrower city and a project county, and those can differ.
Common questions
Islip questions, answered from the record.
How many people live in Islip, New York?
17,362, in 6,036 households. Islip CDP covers 4.75 square miles of land, which is 3,656 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
What county is Islip in?
Suffolk County, which holds 100.0 percent of the place by area. Source: US Census Bureau, cartographic boundary file, places, 2024 vintage.
What is the median household income in Islip?
$120,909. The median owner-occupied home is valued at $542,200. Median gross rent is $2,235 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
How much SBA lending goes to Islip businesses?
22 7(a) approvals totalling $11.8 m, across 12 lenders, median approval $220,000, plus 3 504 approvals worth $1.2 m. These count approvals to borrowers whose address is in Islip, not projects sited inside the place boundary, and they are approvals recorded in the release rather than loans disbursed.
Do SBA loans to Islip borrowers get paid back?
No rate is published for Islip. only 3 resolved loans, too few to publish a rate, and a percentage over that few outcomes would move several points on a single loan. The counts are shown instead.
Is Islip in the National Flood Insurance Program?
Yes. Islip appears in the FEMA Community Status Book as community 365337, with no Community Rating System class, so no CRS discount applies. Whether a specific parcel sits in a mapped special flood hazard area is an address level question the platform answers.
Are the county figures on this page Islip figures?
No, and they are labelled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for Suffolk County as a whole and there is no place level equivalent. They appear in one clearly marked section as context and are never presented as measurements of Islip.
Is zoning published for Islip?
Not yet. The zoning layer is in build. Nothing on this page presents parcel level zoning.