Washington, IN Radon Levels
Check local Washington radon levels and find certified testing and mitigation professionals to keep your home safe
Washington, IN Radon Facts
EPA Radon Zone
Zone 2 — Moderate Risk
2–4 pCi/L (Zone 2)
County
Daviess County, IN
Zip Code
47501
Situated in Daviess County in southwestern Indiana, Washington sits on glacial outwash deposits over limestone bedrock typical of the region. Testing data for zip code 47501 remains limited, though Indiana's geological conditions often contribute to elevated radon levels. The area's housing mix includes both historic homes from the early 1900s and newer suburban development, with basement foundations common throughout the community.
Washington, IN Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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Radon FAQ for Washington, IN
What EPA Radon Zone is Washington in?
Washington and the 47501 zip code are in Daviess County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.
How much does radon mitigation cost in Washington?
Radon mitigation in Washington 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 Washington?
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 Indiana
Cities in Indiana with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Bloomington | 8.14 pCi/L | 7 |
| Kokomo | 7.40 pCi/L | 5 |
| Lafayette | 15.00 pCi/L | 3 |
| Valparaiso | 10.00 pCi/L | 3 |
| Westfield | 6.33 pCi/L | 3 |
| Avon | 6.00 pCi/L | 3 |
| West Lafayette | 10.50 pCi/L | 2 |
| Dyer | 9.50 pCi/L | 2 |
| Columbus | 7.50 pCi/L | 2 |
| Noblesville | 7.00 pCi/L | 2 |