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South Plainfield borough, Middlesex County, NJ

24,231 Population
8.3 square miles 2,920.8 people per square mile

Census data: ACS 2023 5-year unless noted

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Demographics

41.7 ±1.2 Median age
  • a little higher than the figure in Middlesex County: 39.4 ±0.2
  • a little higher than the figure in New Jersey: 40.1 ±0.1

Economics

$49,533 ±$2,488 Per capita income
  • about the same as the amount in Middlesex County: $49,417 ±$514
  • about 90 percent of the amount in New Jersey: $53,118 ±$241
$126,063 ±$4,844 Median household income
  • about 20 percent higher than the amount in Middlesex County: $109,028 ±$1,808
  • about 25 percent higher than the amount in New Jersey: $101,050 ±$527

3.6% ±1.5% (852  ±355) Persons below poverty line
  • about two-fifths of the rate in Middlesex County: 8.5% 71,078 (±0.4% / ±3,381)
  • about one-third of the rate in New Jersey: 9.8% 889,287 (±0.2% / ±14,517)

28 minutes ±0.9 (305,150  ±18,493) Mean travel time to work
  • about 90 percent of the figure in Middlesex County: 31.9 11,335,615 (±0.4 / ±177,750)
  • about 90 percent of the figure in New Jersey: 30.9 119,274,790 (±0.1 / ±657,334)

Families

8,280 ±275 Number of households
  • Middlesex County: 305,610 ±933
  • New Jersey: 3,478,355 ±4,714
2.9 ±0.1 (23,956  ±38) Persons per household
  • a little higher than the figure in Middlesex County: 2.7 836,526 (±0 / ±452)
  • about 10 percent higher than the figure in New Jersey: 2.6 9,093,435

5.9% ±1.9% (285  ±92) Women 15-50 who gave birth during past year
  • about 1.3 times the rate in Middlesex County: 4.6% 9,347 (±0.4% / ±798)
  • about 20 percent higher than the rate in New Jersey: 5.1% 107,472 (±0.1% / ±3,004)

Housing

8,443 ±296 Number of housing units
  • Middlesex County: 316,633 ±182
  • New Jersey: 3,775,842 ±525

$443,900 ±$8,003 Median value of owner-occupied housing units
  • about the same as the amount in Middlesex County: $439,300 ±$3,579
  • a little higher than the amount in New Jersey: $427,600 ±$1,335

9.1% ±2.4% (2,173  ±567.5) Moved since previous year
  • about 80 percent of the rate in Middlesex County: 10.7% 91,298 (±0.4% / ±3,634.2)
  • about 90 percent of the rate in New Jersey: 9.9% 911,070 (±0.1% / ±12,354.8)

Social

92.5% ±4.5% (16,216  ±879.2) High school grad or higher
  • a little higher than the rate in Middlesex County: 89.3% 530,668 (±0.9% / ±5,472.6)
  • about the same as the rate in New Jersey: 90.7% 5,858,484 (±0.3% / ±19,546.8)
42% ±3.2% (7,362  ±578.8) Bachelor's degree or higher
  • about 90 percent of the rate in Middlesex County: 45.1% 268,170 (±0.6% / ±3,707.4)
  • about the same as the rate in New Jersey: 42.9% 2,771,686 (±0.2% / ±13,002.8)

N/A Persons with language other than English spoken at home

23.4% ±2.8% (5,675  ±668) Foreign-born population
  • about two-thirds of the rate in Middlesex County: 34.7% 298,599
  • about the same as the rate in New Jersey: 23.5% 2,181,755

3.2% ±0.7% (610  ±143) Population with veteran status
  • about the same as the rate in Middlesex County: 3.2% 21,751 (±0.2% / ±1,232)
  • about 80 percent of the rate in New Jersey: 4% 285,835 (±0.1% / ±4,508)
610 Total veterans ±143 579 Male ±135 31 Female ±32

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