Looking for a basement contractor in New Johnsonville, TN? Describe your project once and up to five basement contractors who work in New Johnsonville and Humphreys County get back to you with a quote. It's free and there is no obligation.
New Johnsonville is home to about 1,840 people (2024 Census Bureau estimate), a growing community (+1.9% since 2020). With 358 people per sq mi, it is a semi-rural area. Full basements are common here and often the cheapest way to add living space.
New Johnsonville at a glance
- Population (Census Bureau estimate, 2024)
- 1,840 (+1.9% since 2020)
- Rank in Tennessee
- 183rd of 344 cities and towns
- Land area
- 5.1 sq mi
- Population density
- 358 people per sq mi (semi-rural)
- Type
- City (New Johnsonville city)
- Main county
- Humphreys County
What to check before hiring in New Johnsonville
- Moisture first: waterproof before finishing.
- Egress: in Tennessee, 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 New Johnsonville
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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 New Johnsonville
How much does basement finishing cost in New Johnsonville, TN?
It depends on size, bathroom and finishes. Describe your basement: contractors who serve New Johnsonville 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 five independent basement contractors who serve New Johnsonville 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.