Looking for a basement contractor in Middle River, MN? Describe your project once and up to three basement contractors who work in Middle River and Marshall County get back to you with a quote. It's free and there is no obligation.
Middle River is home to about 294 people (2024 Census Bureau estimate), a shrinking community (−3.3% since 2020). With 591 people per sq mi, it is a semi-rural area. Full basements are common here and often the cheapest way to add living space.
Middle River at a glance
- Population (Census Bureau estimate, 2024)
- 294 (−3.3% since 2020)
- Rank in Minnesota
- 594th of 855 cities and towns
- Land area
- 0.5 sq mi
- Population density
- 591 people per sq mi (semi-rural)
- Type
- City (Middle River city)
- Main county
- Marshall County
What to check before hiring in Middle River
- Moisture first: waterproof before finishing.
- Egress: in Minnesota, a basement bedroom needs an escape opening.
- Radon: test before you finish.
- Price drivers: size, bathroom, ceiling height, finishes and egress.
Useful official resources
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ICC: International Code Council
Official information and guidance.
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EPA: radon
Official information and guidance.
Services available in Middle River
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Basement finishing
Framing, insulation, electrical, drywall and flooring of a basement, with permit.
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Basement bathroom or rental unit
Bathroom, kitchenette or legal basement unit with egress and plumbing.
Frequently asked questions in Middle River
How much does basement finishing cost in Middle River, MN?
It depends on size, bathroom and finishes. Describe your basement: contractors who serve Middle River reply with a quote.
How long does it take?
Often several weeks.
Can I rent it out?
Only if local rules allow an accessory unit; check zoning.
Which basement contractors will contact me?
Up to three independent basement contractors who serve Middle River 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.