Looking for a garage builder in Monmouth, IL? Describe your project once and up to three garage builders who work in Monmouth and Warren County get back to you with a quote. It's free and there is no obligation.
Monmouth is home to about 8,639 people (2024 Census Bureau estimate), a shrinking community (−3.2% since 2020). With 2,036 people per sq mi, it is a suburban area. Extra storage, workshops and EVs are driving garage projects here.
Monmouth at a glance
- Population (Census Bureau estimate, 2024)
- 8,639 (−3.2% since 2020)
- Rank in Illinois
- 249th of 1,294 cities and towns
- Land area
- 4.2 sq mi
- Population density
- 2,036 people per sq mi (suburban)
- Type
- City (Monmouth city)
- Main county
- Warren County
What to check before hiring in Monmouth
- Zoning: check setbacks and size limits in Monmouth.
- License and permit: in Illinois, garages are built by licensed contractors under a permit.
- EV ready: add a 240-volt circuit while walls are open.
- Price drivers: size, slab, doors, finish and electrical.
Useful official resources
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ICC: International Code Council
Official information and guidance.
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NAHB
Official information and guidance.
Services available in Monmouth
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Detached garage
Design and construction of a detached garage with slab, permit and electrical.
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Attached garage or garage apartment
Attached garage or garage with living space above.
Frequently asked questions in Monmouth
How much does a garage cost in Monmouth, IL?
It depends on size, materials and finishes. Describe your project: builders who serve Monmouth reply with a quote.
How long does it take?
Often a few weeks once permits are issued.
Kit or custom?
Kits can save money; custom builds match the house.
Which garage builders will contact me?
Up to three independent garage builders who serve Monmouth 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.