South Plainfield, NJ Profile: Facts & Data

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South Plainfield, New Jersey - Basic Facts

The Borough of South Plainfield had a population of 24,117 as of July 1, 2019. South Plainfield ranks in the upper quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in New Jersey. See peer rankings below.

The primary coordinate point for South Plainfield is located at latitude 40.5793 and longitude -74.4115 in Middlesex County. The formal boundaries for the Borough of South Plainfield encompass a land area of 8.33 sq. miles and a water area of 0.03 sq. miles. Middlesex County is in the Eastern time zone (GMT -5). The elevation is 69 feet.

The Borough of South Plainfield (GNIS ID: 885402) has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Alternate Unofficial Names for South Plainfield: New Brooklyn, Samptown.

Jump to... (On This Page!)
  1. South Plainfield 2019 Demographic Data
  2. Growth Rates for South Plainfield (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. New Jersey Research Tools (Easy Tools & Current Data)
  3. New Jersey Data Comparison Tool - 2019 Demographics

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South Plainfield, NJ Data & Demographics (As of July 1, 2019)

HOUSING AFFORDABILITY INDEX

South Plainfield, NJ Housing Affordability Index is 117
State of New Jersey Housing Affordability Index is 91
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.

WEALTH INDEX

South Plainfield, NJ Wealth Index is 151
State of New Jersey Wealth Index is 148
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.

These new demographic attributes are availiable for Neighborhoods, Cities, Counties, and ZIP Codes.

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  1. For information about schools and school attendance zones, use the HTL Address Tool
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  3. The new 2-Minute Introduction and Concise Guide to Big Data which will help you make the most effective use of HomeTownLocator Tools.
  4. See the References & Data Sources page for more information about methodology and sources of data.
  5. See the New Jersey COVID-19 Data and US COVID-19 Data for more information on the spread of the novel coronavirus.

POPULATION

Total Population 24,117 (100%)
Population in Households 23,824 (98.8%)
Population in Families 21,280 (88.2%)
Population in Group Quarters1 293 ( 1.2%)
Population Density 2,907
Diversity Index2 72
 

INCOME

Median Household Income $99,269
Average Household Income $118,060
Per Capita Income $39,457
Wealth Index4 151

HOUSING

Total Housing Units 8,301 (100%)
Owner Occupied HU 6,624 (79.8%)
Renter Occupied HU 1,432 (17.3%)
Vacant Housing Units 245 ( 3.0%)
Median Home Value $341,708
Housing Affordability Index3 117
 

HOUSEHOLDS

Total Households 8,056
Average Household Size 2.96
Family Households 6,312
Average Family Size 3
NOTES
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.

GROWTH RATE / YEAR

2010-2019 2019-2024
Population 0.33% 0.29%
Households 0.24% 0.2%
Families 0.24% 0.21%
Median Household Income   1.71%
Per Capita Income   2.51%

South Plainfield, NJ - Peer Comparisons by Rank and Percentile

The table below compares South Plainfield to the other 545 incorporated cities, towns and CDPs in New Jersey by rank and percentile using July 1, 2019 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 41 93rd
Population Density # 237 57th
Diversity Index # 86 84th
Median Household Income # 191 65th
Per Capita Income # 313 43rd

Additional comparisons and rankings can be made with a VERY EASY TO USE New Jersey Census Data Comparison Tool.

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