Looking for a modular home builder in Napa, CA? Describe your project once and up to three modular home builders who work in Napa and Napa County get back to you with a quote. It's free and there is no obligation.
Napa is home to about 76,921 people (2024 Census Bureau estimate), a shrinking community (−3.0% since 2020). With 4,261 people per sq mi, it is a densely built-up area. Rural lots and replacements of older homes here are good fits for modular construction.
Napa at a glance
- Population (Census Bureau estimate, 2024)
- 76,921 (−3.0% since 2020)
- Rank in California
- 115th of 482 cities and towns
- Land area
- 18 sq mi
- Population density
- 4,261 people per sq mi (densely built-up)
- Type
- City (Napa city)
- Main county
- Napa County
What to check before hiring in Napa
- Code: in California, 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 Napa
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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 Napa
How much does a modular home cost in Napa, CA?
It depends on size, finishes, transport and site work. Describe your project: builders who serve Napa 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 Napa 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.