Looking for a modular home builder in Festus, MO? Describe your project once and up to three modular home builders who work in Festus and Jefferson County get back to you with a quote. It's free and there is no obligation.
Festus is home to about 13,730 people (2024 Census Bureau estimate), a growing community (+8.1% since 2020). With 2,325 people per sq mi, it is a suburban area. Rural lots and replacements of older homes here are good fits for modular construction.
Festus at a glance
- Population (Census Bureau estimate, 2024)
- 13,730 (+8.1% since 2020)
- Rank in Missouri
- 58th of 938 cities and towns
- Land area
- 5.9 sq mi
- Population density
- 2,325 people per sq mi (suburban)
- Type
- City (Festus city)
- Main county
- Jefferson County
What to check before hiring in Festus
- Code: in Missouri, 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 Festus
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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 Festus
How much does a modular home cost in Festus, MO?
It depends on size, finishes, transport and site work. Describe your project: builders who serve Festus 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 Festus 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.