South Plainfield demographics profile

StatisticSouth PlainfieldNew JerseyNational
Population density (sq mi)2,888191
Median age41.139.537.7
Male/Female ratio1.0:11.0:11.0:1
Married (15yrs & older)62%56%55%
Families w/ Kids under 1841%45%43%
Speak English66%69%79%
Speak Spanish14%16%13%
South Plainfield, NJ has a population of 23,963 and is the 1,821st largest city in the United States. The population density is 2,888 per sq mi which is 288745% higher than the New Jersey average and 3088% higher than the national average. The median age in South Plainfield is 41 which is approximately 4% higher than the New Jersey average of 40. In South Plainfield, 62% of the population over 15 years of age are married, 66% speak English and 14% speak Spanish. 58% of South Plainfield residents were born in New Jersey, 15% were born out of state, 2% were born outside of the United States and 25% were foreign born.

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Did you know?

  • The population density in South Plainfield is 288745% higher than New Jersey.
  • The median age in South Plainfield is 4% higher than New Jersey.
  • In South Plainfield 63.83% of the population is White.
  • In South Plainfield 10.75% of the population is Black or African American.
  • In South Plainfield 16.36% of the population is Asian.

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South Plainfield population breakdown by race

RaceSouth PlainfieldNew JerseyNational
Black or African American10.75%13.54%12.63%
American Indian0.01%0.21%0.82%
Native Hawaiian0.00%0.03%0.18%
Mixed race2.40%2.53%3.06%
Other race6.64%6.35%4.75%
In South Plainfield, 16.1% of people are of Hispanic or Latino origin.
Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

Languages spoken

Place of birth by citizenship

Household income distribution

Source of income

South Plainfield age breakdown

Marital status

Age of children in married couples

Source: The South Plainfield, NJ demographics data displayed above is derived from the 2016 United States Census Bureau American Community Survey (ACS).