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HomeNew JerseyMiddlesex CountySouth River

South River, New Jersey: commercial real estate data.

South River is a Census borough of 16,124 people across 2.78 square miles of land, in Middlesex County. Median household income is $96,147, 65.6 percent of occupied homes are owned, and the SBA record carries 28 7(a) approvals to borrowers here worth $10.8 m since FY2020.

Underlined figures are computed by MMCG Analytics, not published by the agency.

South River

What South River is

  • Census place typeborough
  • Land area2.78 sq mi
  • Water area0.15 sq mi
  • Population per square mile of land5,790
  • 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.

South River

How many people live in South River

  • Population16,124
  • Median age37.0
  • Population under 184,068
  • Share under 1825.2 percent
  • Population 65 and over2,155
  • Share 65 and over13.4 percent
  • Households5,574
  • Family households4,180
  • Share of households that are families75.0 percent

US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

South River

Income and work in South River

  • Median household income$96,147
  • Per capita income$42,301
  • Civilian labor force8,942
  • Employed8,251
  • Unemployed691 plus or minus 255
  • Unemployment rate7.7 percent plus or minus 2.8
  • Adults 25 and over11,038
  • Adults 25 and over with a high school diploma or higher87.9 percent
  • Adults 25 and over with a bachelor degree or higher27.9 percent
  • Adults 25 and over with a graduate degree10.9 percent plus or minus 2.5

US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

South River

Housing in South River

  • Housing units5,754
  • Occupied units5,574
  • Vacant units180 plus or minus 117
  • Vacancy rate3.1 percent plus or minus 2.0
  • Owner occupied3,659
  • Renter occupied1,915
  • Ownership rate65.6 percent
  • Median owner-occupied home value$405,200
  • Median gross rent, monthly$1,675
  • Annual rent as a share of median income20.9 percent
  • Single family units4,356
  • Share single family75.7 percent
  • Units in buildings of two or more1,398 plus or minus 302
  • Share in buildings of two or more24.3 percent plus or minus 5.1
  • Mobile homes0
  • Median year structure built1962

US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

South River

How South River gets to work

  • Workers 16 and over who commute7,584
  • Commuting under 15 minutes1,548 plus or minus 387
  • Share commuting under 15 minutes20.4 percent plus or minus 4.7
  • Commuting 30 minutes or more3,617
  • Share commuting 30 minutes or more47.7 percent
  • Drove alone69.9 percent
  • Carpooled13.9 percent plus or minus 4.9
  • Public transport3.0 percent plus or minus 1.6
  • Walked1.6 percent plus or minus 1.2
  • Worked from home6.7 percent plus or minus 2.3

US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

South River

SBA loans in South River (7(a))

  • Approvals28
  • Gross approval$10,776,000
  • Average approval$384,857
  • Median approval$207,500
  • Ninetieth percentile approval$1,023,000
  • Largest approval$1,800,000
  • Jobs supported323
  • Jobs per approval11.5
  • Loans with a final outcome6
  • Paid in full6
  • Charged off0
  • Median term120 months
  • Share on real estate terms of 20 years or more21.4 percent
  • Share to franchises0.0 percent
  • Distinct lenders16
  • Distinct industries by NAICS18

Counted by borrower city: approvals to borrowers whose address is in South River, in any county, FY2020 to FY2026. Only 6 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.

South River

SBA loans in South River (504)

  • Approvals3
  • Gross approval$1,113,000
  • Average approval$371,000
  • Median approval$399,000
  • Largest approval$412,000
  • Jobs supported17
  • Loans with a final outcome1
  • Charged off0
  • Median term240 months
  • Distinct CDCs2

Counted by borrower city: approvals to borrowers whose address is in South River, 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.

South River

Flood risk in South River

  • NFIP communityBorough of South River
  • NFIP community number340280
  • Participating in the NFIPYes
  • Community Rating System classClass 10
  • Currently effective map date07/06/10

The Borough of South River participates in the National Flood Insurance Program as community 340280 and carries Community Rating System class 10, a flood insurance premium discount for policies written there.

Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26.

Middlesex County, not South River

Middlesex County context, not South River 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 South River.

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

South River questions, answered from the record.

How many people live in South River, New Jersey?

16,124, in 5,574 households. South River borough covers 2.78 square miles of land, which is 5,790 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

What county is South River 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 South River?

$96,147. The median owner-occupied home is valued at $405,200. Median gross rent is $1,675 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

How much SBA lending goes to South River businesses?

28 7(a) approvals totaling $10.8 m since FY2020, across 16 lenders, median approval $207,500, plus 3 504 approvals worth $1.1 m since FY2010. These count approvals to borrowers whose address is in South River, not projects sited inside the place boundary, and they are approvals recorded in the release rather than loans disbursed.

Do SBA loans to South River borrowers get paid back?

No rate is published for South River. Only 6 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.

Is South River in the National Flood Insurance Program?

Yes. South River appears in the FEMA Community Status Book as South River, borough of, community 340280, carrying Community Rating System class 10, which is a premium discount for exceeding the program minimum. 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 South River 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 South River.

Is zoning published for South River?

No. Nothing on this page presents parcel level zoning.