South Plainfield, New Jersey
Borough in Middlesex County, New Jersey
| Census | Population |
|---|---|
| 2000 | 21,810 |
| 2010 | 23,385 |
| 2020 | 24,338 |
As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.
Sources: Census 2000 Summary File 1: total population, place level, state 34, retrieved November 14, 2026; Census 2010 Summary File 1: total population, place level, state 34, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, place level, state 34, retrieved November 14, 2026.
| Measure | South Plainfield | Middlesex County | New Jersey |
|---|---|---|---|
| Population | 24,231 | 861,535 | 9,267,014 |
| Median household income | $126,063 | $109,028 | $101,050 |
| Median age | 41.7 | 39.4 | 40.1 |
| Median home value | $443,900 | $439,300 | $427,600 |
| Bachelor’s degree or higher | 42.0% | 45.1% | 42.9% |
| Foreign-born residents | 23.4% | 34.7% | 23.5% |
| Owner-occupied homes | 85.2% | 63.5% | 63.7% |
| Mean commute to work | 28.0 minutes | 31.9 minutes | 30.9 minutes |
Source: American Community Survey 5-year data profile 2019–2023, place level, state 34, retrieved November 14, 2026.
Median household income $126,063 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.
Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, place level, state 34, retrieved November 14, 2026.
- Owner occupied
- 7,051 units
- Renter occupied
- 1,229 units
- Vacancy rate
- 1.9%
Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.
Source: American Community Survey 5-year data profile 2019–2023, place level, state 34, retrieved November 14, 2026.
| School | Type | Grades | District |
|---|---|---|---|
| John E. Riley Preschool Annex | Public | Pre-K | South Plainfield School District |
| Franklin Elementary School | Public | Pre-K–4 | South Plainfield School District |
| John E. Riley Elementary School | Public | K–4 | South Plainfield School District |
| John F Kennedy Elementary School | Public | Pre-K–4 | South Plainfield School District |
| Roosevelt Elementary School | Public | Pre-K–4 | South Plainfield School District |
| Grant Elementary School | Public | 5–6 | South Plainfield School District |
| South Plainfield Middle School | Public | 7–8 | South Plainfield School District |
| South Plainfield High School | Public | 9–12 | South Plainfield School District |
Open public schools in the NCES directory for 2023–2024, placed by their listed location; private schools are not in the source. Enrollment and ratings are not shown.
Sources: NCES Common Core of Data, public school directory 2023–2024, retrieved November 14, 2026; NCES EDGE public school geocodes 2024–2025, retrieved November 14, 2026.
Community
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Nearby towns
- PlainfieldCity
- DunellenBorough
- Piscataway TownshipTownship
- North PlainfieldBorough
- MetuchenBorough
- Green Brook TownshipTownship
- Rutgers University-Livingston CampusCensus designated place
- MiddlesexBorough
- Scotch Plains TownshipTownship
- Rutgers University-Busch CampusCensus designated place
Other towns in Middlesex County
- AvenelCensus designated place
- BrownvilleCensus designated place
- CarteretBorough
- ClearbrookCensus designated place
- ColoniaCensus designated place
- ConcordiaCensus designated place
- Cranbury TownshipTownship
- CranburyCensus designated place
- DaytonCensus designated place
- DeansCensus designated place
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- Type
- Borough
- County
- Middlesex County
- Land area
- 8.30 sq mi
- Water area
- 0.03 sq mi
- Population
- 25,062 (2024 estimate)
- Households
- 8,280
- Median age
- 41.7
- Median household income
- $126,063
- Median home value
- $443,900
- Median gross rent
- $1,928
- Owner-occupied homes
- 85.2%
- Bachelor’s degree or higher
- 42.0%
- Foreign-born residents
- 23.4%
- Mean commute to work
- 28.0 minutes
- Census GEOID
- 3469390
Sources: Census Gazetteer 2025: places, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 34, retrieved November 14, 2026; American Community Survey 5-year data profile 2019–2023, place level, state 34, retrieved November 14, 2026.
- ZIP codes
- 07080
- Metro area
- New York-Newark-Jersey City, NY-NJ
Sources: Census 2020 ZCTA relationship file: ZCTAs to places, retrieved November 14, 2026; Census Gazetteer 2025: metropolitan and micropolitan areas, retrieved November 14, 2026.