HomeNew JerseyMiddlesex CountyIselin
Iselin, New Jersey: commercial real estate data.
Iselin is a Census CDP of 19,551 people across 3.15 square miles of land, in Middlesex County. Median household income is $109,500, 65.3 percent of occupied homes are owned, and the SBA record carries 29 7(a) approvals to borrowers here worth $9.3 m since FY2020.
Underlined figures are computed by MMCG Analytics, not published by the agency.
Iselin
What Iselin is
- Census place typeCDP
- Land area3.15 sq mi
- Water area0 sq mi
- Population per square mile of land6,203
- County holding the largest share of its areaMiddlesex 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.
Iselin
How many people live in Iselin
- Population19,551
- Median age38.5
- Population under 184,067
- Share under 1820.8 percent
- Population 65 and over3,155
- Share 65 and over16.1 percent
- Households6,512
- Family households5,458
- Share of households that are families83.8 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Iselin
Income and work in Iselin
- Median household income$109,500
- Per capita income$45,254
- Civilian labor force10,388
- Employed9,978
- Unemployed410 plus or minus 161
- Unemployment rate3.9 percent plus or minus 1.5
- Adults 25 and over13,749
- Adults 25 and over with a high school diploma or higher90.4 percent
- Adults 25 and over with a bachelor degree or higher53.7 percent
- Adults 25 and over with a graduate degree24.5 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Iselin
Housing in Iselin
- Housing units6,738
- Occupied units6,512
- Vacant units226 plus or minus 166
- Vacancy rate3.4 percent plus or minus 2.4
- Owner occupied4,254
- Renter occupied2,258
- Ownership rate65.3 percent
- Median owner-occupied home value$426,800
- Median gross rent, monthly$2,113
- Annual rent as a share of median income23.2 percent
- Single family units4,840
- Share single family71.8 percent
- Units in buildings of two or more1,898
- Share in buildings of two or more28.2 percent
- Mobile homes0
- Median year structure built1959
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Iselin
How Iselin gets to work
- Workers 16 and over who commute7,720
- Commuting under 15 minutes1,414 plus or minus 368
- Share commuting under 15 minutes18.3 percent plus or minus 4.1
- Commuting 30 minutes or more4,205
- Share commuting 30 minutes or more54.5 percent
- Drove alone55.0 percent
- Carpooled4.9 percent plus or minus 2.3
- Public transport12.4 percent plus or minus 6.0
- Walked3.5 percent plus or minus 2.0
- Worked from home20.8 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Iselin
SBA loans in Iselin (7(a))
- Approvals29
- Gross approval$9,285,300
- Average approval$320,183
- Median approval$150,000
- Ninetieth percentile approval$724,200
- Largest approval$2,300,000
- Jobs supported273
- Jobs per approval9.4
- Loans with a final outcome7
- Paid in full4
- Charged off3
- Median term120 months
- Share on real estate terms of 20 years or more6.9 percent
- Share to franchises3.4 percent
- Distinct lenders14
- Distinct industries by NAICS23
Counted by borrower city: approvals to borrowers whose address is in Iselin, in any county, FY2020 to FY2026. Only 7 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
Iselin
SBA loans in Iselin (504)
- Approvals2
- Gross approval$662,000
- Average approval$331,000
- Median approval$331,000
- Largest approval$475,000
- Jobs supported43
- Loans with a final outcome1
- Charged off0
- Median term240 months
- Distinct CDCs2
Counted by borrower city: approvals to borrowers whose address is in Iselin, in any county, FY2010 to FY2026. Only 1 loan has reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.
US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.
Middlesex County, not Iselin
Middlesex County context, not Iselin figures
- Establishments in Middlesex County22,314
- Covered employment, Middlesex County430,555
- Average annual pay, Middlesex County$82,400
- Housing units permitted, Middlesex County1,792
Every figure in this section is published for Middlesex County as a whole and is not a measurement of Iselin.
All Middlesex County figures →
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.
Coverage
What this page does not hold.
Parcel detail, zoning and the flood zone at an address are not on this page; they resolve at the address in the platform. How this page was built →
Common questions
Iselin questions, answered from the record.
How many people live in Iselin, New Jersey?
19,551, in 6,512 households. Iselin CDP covers 3.15 square miles of land, which is 6,203 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
What county is Iselin in?
Middlesex 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 Iselin?
$109,500. The median owner-occupied home is valued at $426,800. Median gross rent is $2,113 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
How much SBA lending goes to Iselin businesses?
29 7(a) approvals totaling $9.3 m since FY2020, across 14 lenders, median approval $150,000, plus 2 504 approvals worth $662,000 since FY2010. These count approvals to borrowers whose address is in Iselin, not projects sited inside the place boundary, and they are approvals recorded in the release rather than loans disbursed.
Do SBA loans to Iselin borrowers get paid back?
No rate is published for Iselin. Only 7 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published. The counts are shown instead.
Are the county figures on this page Iselin figures?
No, and they are labeled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for Middlesex 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 Iselin.
Is zoning published for Iselin?
No. Nothing on this page presents parcel level zoning.