Rehoboth Beach, DE Radon Mitigation and Testing

Q: What is the average radon level in Rehoboth Beach, DE?

Based on 2 user-submitted tests, the average radon level is 5.50 pCi/L.

Q: What EPA Radon Zone is Rehoboth Beach in?

Rehoboth Beach is in Sussex County, EPA Zone 3.

Q: How much does radon mitigation cost in Rehoboth Beach?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Avg: 5.50 pCi/L

Sussex County

EPA Zone 3

2 user tests

Delaware's popular coastal resort community in Sussex County has measured an average radon level of 5.5 pCi/L, which exceeds the EPA action threshold. Despite its beachfront location, the area's underlying geological formations contribute to elevated radon concentrations that affect both year-round residences and vacation properties in zip code 19971. Homeowners should prioritize testing and mitigation, particularly in homes with basements or enclosed crawl spaces where radon can accumulate.

5.50

pCi/L average

Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Rehoboth Beach, DE. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Rehoboth Beach, DE Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Rehoboth Beach, DE Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Rehoboth Beach, Delaware Radon Levels

User-submitted radon test readings from homes in the Rehoboth Beach area.

Radon Level	City	Home Age	Foundation	Submitted
5 pCi/L	Rehoboth Beach, DE	0-20 Years	Full Basement	Sep 2020
6 pCi/L	Rehoboth Beach, DE	0-20 Years	Full Basement	Sep 2018

Have a radon test result for Rehoboth Beach? Submit your reading to help other homeowners.

Rehoboth Beach Radon Facts

Key details about the radon risk profile for Rehoboth Beach and the 19971 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Sussex County, DE

Zip Code

19971

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Avg. User Submitted Level

5.50 pCi/L

User Tests Submitted

Rehoboth Beach and the 19971 zip code are located in Sussex County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Rehoboth Beach, DE

What is the average radon level in Rehoboth Beach, DE?

Based on 2 user-submitted tests, the average radon level in Rehoboth Beach is 5.50 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Rehoboth Beach in?

Rehoboth Beach and the 19971 zip code are in Sussex 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 Rehoboth Beach?

Radon mitigation in Rehoboth Beach 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 Rehoboth Beach?

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 with the most user-submitted radon test data in the state.

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