Knoxville, AR Radon Levels
Check local Knoxville radon levels and find certified testing and mitigation professionals to keep your home safe
Knoxville, AR Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Johnson County, AR
Zip Code
72845
Situated in Johnson County in the Arkansas River Valley, Knoxville lies within the Ouachita Mountain foothills where sedimentary rock formations can influence indoor radon levels. With testing data currently limited for zip code 72845, residents should conduct home radon testing to understand their specific exposure levels in this mountainous region of west-central Arkansas.
Knoxville, AR Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Need Radon Mitigation or Testing in Knoxville?
- 100% Free, No-Obligation Quotes
- Matches You with State-Licensed Johnson County Pros
1-800-299-3578
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Radon FAQ for Knoxville, AR
What EPA Radon Zone is Knoxville in?
Knoxville and the 72845 zip code are in Johnson County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.
How much does radon mitigation cost in Knoxville?
Radon mitigation in Knoxville typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.
Should I test for radon if I'm buying a home in Knoxville?
Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.
Most Active Radon Markets in Arkansas
Cities in Arkansas with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Hot Springs Village | 11.60 pCi/L | 5 |
| Bentonville | 4.00 pCi/L | 4 |
| Bella Vista | 13.67 pCi/L | 3 |
| Little Rock | 7.00 pCi/L | 1 |