Newark, DE Radon Levels
Check local Newark radon levels and find certified testing and mitigation professionals to keep your home safe
Newark, DE Radon Facts
EPA Radon Zone
Zone 2 — Moderate Risk
2–4 pCi/L (Zone 2)
County
New Castle County, DE
Zip Code
19702
Positioned in New Castle County within the Philadelphia metro region, Newark spans multiple zip codes with limited radon testing data currently available. The area's Piedmont geology, featuring crystalline bedrock beneath coastal plain sediments, can create variable radon conditions across different neighborhoods. University of Delaware researchers and local residents alike should prioritize radon testing given the geological complexity of this region.
Newark, DE 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 Newark, DE
What EPA Radon Zone is Newark in?
Newark and the 19702 zip code are in New Castle 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 Newark?
Radon mitigation in Newark 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 Newark?
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 Delaware
Cities in Delaware with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Middletown | 7.43 pCi/L | 7 |
| Wilmington | 5.50 pCi/L | 4 |
| Lewes | 6.00 pCi/L | 1 |
| New Castle | 4.00 pCi/L | 1 |
| Newark | No submissions | 0 |