South Plainfield, New Jersey Population 2024

24,169

South Plainfield is a city located in Middlesex County New Jersey. South Plainfield has a 2024 population of 24,169. South Plainfield is currently declining at a rate of -0.12% annually and its population has decreased by -0.49% since the most recent census, which recorded a population of 24,287 in 2020.

The average household income in South Plainfield is $140,782 with a poverty rate of 3.63%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in South Plainfield is 41.8 years, 39.4 years for males, and 43.1 years for females.

South Plainfield Demographics

According to the most recent ACS, the racial composition of South Plainfield was:

  • White: 55.15%
  • Asian: 16.99%
  • Black or African American: 11.69%
  • Other race: 8.84%
  • Two or more races: 7.2%
  • Native American: 0.11%
  • Native Hawaiian or Pacific Islander: 0.02%
Land Area (mi²)
8.3 sq mi
Density (mi²)
2,913.30/sq mi
Growth Since 2020
-0.49% (-118)
The current population of South Plainfield, New Jersey is 24,169 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 24,287.

South Plainfield, New Jersey Population 2024

Population by Race

Download Table Data

Enter your email below, and you'll receive this table's data in your inbox momentarily.

Race
Population
Percentage (of total)
White13,38655.15%
Asian4,12316.99%
Black or African American2,83811.69%
Other race2,1458.84%
Two or more races1,7487.2%
Native American270.11%
Native Hawaiian or Pacific Islander60.02%

White

Asian

Black or African American

Other race

Two or more races

Native American

Native Hawaiian or Pacific Islander

South Plainfield Population by Race

South Plainfield Population Pyramid 2024

South Plainfield Median Age

41.8

Total

39.4

Male

43.1

Female

South Plainfield Adults

There are 19,402 adults, (4,363 of whom are seniors) in South Plainfield.

South Plainfield Age Dependency

61.4

Age Dependency Ratio

29

Old Age Dependency Ratio

32.4

Child Dependency Ratio

South Plainfield Sex Ratio

Female12,40151.09%
Male11,87248.91%

South Plainfield Population by Age

South Plainfield Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All8,1502.9485.414.6
Married5,5383.4190.29.8
Non Family1,5471.1672.927.1
Female7683.1678.121.9
Male297379.520.5

3.31

Average Family Size

2.94

Average Household Size

85.4%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

South Plainfield Households and Families

Male

Female

Download Table Data

Enter your email below, and you'll receive this table's data in your inbox momentarily.

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

South Plainfield Educational Attainment by Sex (over 25)

South Plainfield Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Download Table Data

Enter your email below, and you'll receive this table's data in your inbox momentarily.

The highest rate of high school graduation is among native american people with a rate of 100%.

The highest rate of bachelors degrees is among native american people with a rate of 100%.

South Plainfield Educational Attainment by Race

All

Male

Female

Download Table Data

Enter your email below, and you'll receive this table's data in your inbox momentarily.

$66,342

Average Earnings

$73,469

Average Male

$56,648

Average Female

South Plainfield Earnings by Educational Attainment

South Plainfield Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

South Plainfield Language

65.56% of South Plainfield residents speak only English, while 34.44% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 13.38% of the population.

South Plainfield Language

South Plainfield Poverty by Race

rate

Download Table Data

Enter your email below, and you'll receive this table's data in your inbox momentarily.

Name
Total
In Poverty
Poverty Rate
Hispanic4,4333688.3%
White11,8082902.46%
Other2,14522710.58%
Asian4,0491353.33%
Black2,793341.22%
Multiple1,698321.88%
Native271762.96%

3.63%

Overall Poverty Rate

2.96%

Male Poverty Rate

4.29%

Female Poverty Rate

Poverty in South Plainfield

The race most likely to be in poverty in South Plainfield is Native, with 62.96% below the poverty level.

The race least likely to be in poverty in South Plainfield is Black, with 1.22% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.56%. Among those working part-time, it was 6.23%, and for those that did not work, the poverty rate was 6.55%.

South Plainfield Poverty

rate

Download Table Data

Enter your email below, and you'll receive this table's data in your inbox momentarily.

Rate
Poverty
Less Than 9th Grade14.35%
High School4.1%
Some College1.95%
Bachelors or Greater1.67%

South Plainfield Poverty Rate by Education

rate

Download Table Data

Enter your email below, and you'll receive this table's data in your inbox momentarily.

Rate
Poverty
Female Employed3.02%
Female Unemployed1.78%
Male Employed1.53%
Male Unemployed1.33%

South Plainfield Poverty Rate by Employment Status and Sex

South Plainfield Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Download Table Data

Enter your email below, and you'll receive this table's data in your inbox momentarily.

mean

median

Income by Household Type

South Plainfield Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

60.0%

Overall Marriage Rate

60.7%

Male Marriage Rate

59.2%

Female Marriage Rate

South Plainfield Married by Age and Sex

male

female

South Plainfield Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 45-54.

South Plainfield Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

South Plainfield Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

725

Number of Veterans

682

Male Veterans

43

Female Veterans

Download Table Data

Enter your email below, and you'll receive this table's data in your inbox momentarily.

South Plainfield Veterans by War

count

Download Table Data

Enter your email below, and you'll receive this table's data in your inbox momentarily.

South Plainfield Veterans by Age

count

Download Table Data

Enter your email below, and you'll receive this table's data in your inbox momentarily.

South Plainfield Veterans by Race

South Plainfield Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

1.7%

Veteran Poverty Rate

29.28%

Veteran Disability Rate

South Plainfield Veterans by Education

LaborForceParticipation

69.6%

Labor Force Participation

64.6%

Employment Rate

7.2%

Unemployment Rate

South Plainfield Employment by Age

LaborForceParticipation

South Plainfield Employment by Race

LaborForceParticipation

South Plainfield Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

58.44%

Born in South Plainfield

76.08%

Native Born

23.92%

Foreign Born

8.26%

Non Citizen

15.66%

Naturalized

Place of Birth

76.08% of South Plainfield residents were born in the United States, with 58.44% having been born in New Jersey. 8.26% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

South Plainfield Place of Birth

Note: data after 2022 is projected based on recent change

Download Table Data

Enter your email below, and you'll receive this table's data in your inbox momentarily.

Year
Population
Growth
Growth Rate
202924,021-30-0.12%
202824,051-29-0.12%
202724,080-30-0.12%
202624,110-29-0.12%
202524,139-30-0.12%
202424,169-29-0.12%
202324,198-30-0.12%
202224,228-72-0.3%
202124,300130.05%
202024,2872401%
201924,047270.11%
201824,020570.24%
201723,963950.4%
201623,868210.09%
201523,8472080.88%
201423,639610.26%
201323,578180.08%
201223,5601160.49%
201123,444570.24%
201023,387
200021,8101,3216.45%
199020,489-32-0.16%
198020,521-621-2.94%
197021,1423,26318.25%
196017,8799,871123.26%
19508,0082,62948.88%
19405,3793326.58%
19305,047-18,974-78.99%
showing: 28 rows

South Plainfield Population by Year