Looking for a modular home builder in South Plainfield, NJ? Describe your project once and up to three modular home builders who work in South Plainfield and Middlesex County get back to you with a quote. It's free and there is no obligation.
South Plainfield is home to about 25,062 people (2024 Census Bureau estimate), a growing community (+3.0% since 2020). With 3,021 people per sq mi, it is a suburban area. Rural lots and replacements of older homes here are good fits for modular construction.
South Plainfield at a glance
- Population (Census Bureau estimate, 2024)
- 25,062 (+3.0% since 2020)
- Rank in New Jersey
- 39th of 323 cities and towns
- Land area
- 8.3 sq mi
- Population density
- 3,021 people per sq mi (suburban)
- Type
- Borough (South Plainfield borough)
- Main county
- Middlesex County
What to check before hiring in South Plainfield
- Code: in New Jersey, modular homes are built to the state or local building code.
- Site work: foundation, utilities, crane access and finishes must be in the quote.
- Access: delivery trucks and cranes need road and lot access.
- Price drivers: size, finishes, transport distance and site work.
Useful official resources
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Modular Home Builders Association
Official information and guidance.
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ICC: International Code Council
Official information and guidance.
Services available in South Plainfield
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Modular home
Factory-built modular home delivered and set on a site-built foundation, with finish work.
Frequently asked questions in South Plainfield
How much does a modular home cost in South Plainfield, NJ?
It depends on size, finishes, transport and site work. Describe your project: builders who serve South Plainfield reply with a quote.
How long does it take?
Often a few months from order to move-in.
Can I customize the design?
Most modular builders offer customizable plans.
Which modular home builders will contact me?
Up to three independent modular home builders who serve South Plainfield and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.