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South Plainfield borough, Middlesex County, NJ

24,473 Population
8.3 square miles 2,949.9 people per square mile

Census data: ACS 2024 5-year unless noted

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Demographics

41.7 ±1.3 Median age
  • a little higher than the figure in Middlesex County: 39.5 ±0.3
  • a little higher than the figure in New Jersey: 40.1 ±0.1
  • about 10 percent higher than the figure in United States: 38.9 ±0.1

Economics

$51,315 ±$2,256 Per capita income
  • about the same as the amount in Middlesex County: $50,601 ±$489
  • a little less than the amount in New Jersey: $54,253 ±$256
  • about 20 percent higher than the amount in United States: $44,673 ±$122
$130,239 ±$8,213 Median household income
  • about 20 percent higher than the amount in Middlesex County: $111,549 ±$1,881
  • about 25 percent higher than the amount in New Jersey: $103,556 ±$513
  • more than 1.5 times the amount in United States: $80,734 ±$166

3% ±1% (723  ±235) Persons below poverty line
  • about one-third of the rate in Middlesex County: 8.6% 72,664 (±0.5% / ±4,149)
  • about one-third of the rate in New Jersey: 9.7% 891,891 (±0.2% / ±14,073)
  • about one-quarter of the rate in United States: 12.5% 40,735,660 (±0.1% / ±275,861)

29.7 minutes ±0.2 (307,730  ±19,800) Mean travel time to work
  • a little less than the figure in Middlesex County: 31.2 11,036,355 (±0.3 / ±168,653)
  • a little less than the figure in New Jersey: 30.5 116,289,230 (±0.1 / ±571,910)
  • about 10 percent higher than the figure in United States: 26.4 3,569,606,700 (±0 / ±5,719,373)

Families

8,351 ±261 Number of households
  • Middlesex County: 307,782 ±1,150
  • New Jersey: 3,507,701 ±5,116
  • United States: 129,227,496 ±209,365
2.9 ±0.1 (24,208  ±45) Persons per household
  • a little higher than the figure in Middlesex County: 2.8 846,088 (±0 / ±339)
  • about 10 percent higher than the figure in New Jersey: 2.6 9,173,351
  • about 20 percent higher than the figure in United States: 2.5 326,722,430

4.2% ±1.9% (220  ±100) Women 15-50 who gave birth during past year
  • about 90 percent of the rate in Middlesex County: 4.6% † 9,537 (±0.5% / ±973)
  • about 80 percent of the rate in New Jersey: 5.2% 110,552 (±0.1% / ±2,477)
  • about 80 percent of the rate in United States: 5.1% 4,009,203 (±0% / ±20,898)

Housing

8,530 ±273 Number of housing units
  • Middlesex County: 317,979 ±208
  • New Jersey: 3,791,354 ±469
  • United States: 143,775,360 ±10,234

$470,900 ±$9,099 Median value of owner-occupied housing units
  • about the same as the amount in Middlesex County: $462,900 ±$2,710
  • a little higher than the amount in New Jersey: $454,400 ±$1,150
  • about 1.4 times the amount in United States: $332,700 ±$236

6.1% ±1.8% (1,492  ±443.9) Moved since previous year
  • about three-fifths of the rate in Middlesex County: 10.4% 89,375 (±0.5% / ±4,303.5)
  • about two-thirds of the rate in New Jersey: 9.6% 889,792 (±0.1% / ±13,145.6)
  • about half the rate in United States: 12.3% 40,747,183 (±0% / ±136,530.8)

Social

92.5% ±4.7% (16,292  ±900) High school grad or higher
  • a little higher than the rate in Middlesex County: 89.2% 536,965 (±0.9% / ±5,557.6)
  • about the same as the rate in New Jersey: 90.7% 5,915,947 (±0.3% / ±19,889.6)
  • a little higher than the rate in United States: 89.6% 206,814,894 (±0.1% / ±283,951.7)
44% ±3.5% (7,739  ±643.5) Bachelor's degree or higher
  • a little less than the rate in Middlesex County: 45.6% 274,455 (±0.6% / ±3,622)
  • about the same as the rate in New Jersey: 43.6% 2,845,933 (±0.2% / ±12,951.6)
  • about 25 percent higher than the rate in United States: 35.7% 82,363,217 (±0.1% / ±182,857.7)

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

23.9% ±2.3% (5,847  ±564) Foreign-born population
  • about two-thirds of the rate in Middlesex County: 35.4% 308,388
  • about the same as the rate in New Jersey: 23.9% 2,236,554
  • more than 1.5 times the rate in United States: 14.1% 47,349,080

2.9% ±0.7% (569  ±133) Population with veteran status
  • about the same as the rate in Middlesex County: 3% 20,594 (±0.2% / ±1,093)
  • about 80 percent of the rate in New Jersey: 3.7% 273,031 (±0.1% / ±4,211)
  • about half the rate in United States: 6.2% 16,185,883 (±0% / ±45,251)
569 Total veterans ±133 547 Male ±131 22 Female ±25

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