Unified School District · NJ
South Plainfield Borough School District
South Plainfield Borough School District is a unified school district in New Jersey with a community population of 24,473. The median household income is $130,239 and the median age is 41.7.
24,473
Population
2950
People / sq mi
$130,239
Median Income
41.7
Median Age
South Plainfield Borough School District covers 8 sq mi of land at 2950.0 people per square mile.
Race & Ethnicity
| White | 50.5% |
| Black or African American | 0.1% |
| Asian | 33.5% |
| Hispanic or Latino (any race) | 0.0% |
Economy & Income
$130,239
Median Household Income
$51,315
Per Capita Income
2.6%
Poverty Rate
3.8%
Unemployment
Housing
$470,900
Median Home Value
$2,107
Median Rent
85.9%
Homeownership
Education Attainment
92.5%
High School+
44.0%
Bachelor's+
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State rankings
Frequently Asked Questions
South Plainfield Borough School District serves a community with a population of 24,473 according to the latest Census ACS 5-Year estimates. This unified school district is located in New Jersey.
The median household income in South Plainfield Borough School District is $130,239, with a per capita income of $51,315. The poverty rate is 2.6%.
South Plainfield Borough School District is 50.5% White, 0.1% Black or African American, 33.5% Asian, and 0.0% Hispanic or Latino, per Census ACS data.
In South Plainfield Borough School District, 92.5% of adults have a high school diploma or higher, and 44.0% hold a bachelor's degree or higher, per Census ACS estimates.
The median home value in South Plainfield Borough School District is $470,900, with a median rent of $2,107. The homeownership rate is 85.9%.
More from New Jersey
Data for South Plainfield Borough School District from the American Community Survey 5-Year estimates. Land area from Census Gazetteer files. This is a unified school district (GEOID: 3415360).
this entity is one of the data points covered by this site’s U.S. population demographics dataset. The detail above comes directly from the U.S. Census Bureau ACS and decennial files; the context that follows situates the headline numbers against the broader distribution across U.S. states, metros, cities, and ZIPs.
Every number on this page links back to the U.S. Census Bureau ACS and decennial files; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. states, metros, cities, and ZIPs with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: U.S. Census Bureau ACS, 2026.