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Trenton, NJ Radon Levels

Check local Trenton radon levels and find certified testing and mitigation professionals to keep your home safe


Trenton, NJ Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Mercer County, NJ
Zip Code 08608
Avg. User Level 5.00 pCi/L
User Tests 4

Located in Burlington County within the Philadelphia Metro region, Trenton area homes have shown radon readings averaging 4.0 pCi/L. While this level meets the EPA's action threshold, it underscores the importance of regular testing in the 08641 zip code, particularly given New Jersey's variable geology and mixed foundation types throughout the region.

5.00
pCi/L average
Above EPA Action Level

Based on 4 user-submitted radon tests for homes in Trenton, NJ. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Trenton, NJ Radon Mitigation

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

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Trenton, NJ Radon Levels

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

Radon LevelCityHome AgeFoundation
4 pCi/L Trenton, NJ 51-99 Years Full Basement
4 pCi/L Trenton, NJ 21-50 Years Partial Basement

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

Radon FAQ for Trenton, NJ

What is the average radon level in Trenton, NJ?
Based on 4 user-submitted tests, the average radon level in Trenton is 5.00 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 Trenton in?
Trenton and the 08608 zip code are in Mercer County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.
How much does radon mitigation cost in Trenton?
Radon mitigation in Trenton 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 Trenton?
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 New Jersey

Cities in New Jersey with the most user-submitted radon test data, ranked by number of submissions.

CityAvg User Radon LevelSubmissions
Cherry Hill 6.44 pCi/L 9
Hillsborough 6.14 pCi/L 7
Freehold 10.50 pCi/L 6
Marlboro 6.17 pCi/L 6
Bernardsville 7.00 pCi/L 5
Phillipsburg 7.00 pCi/L 5
Edison 5.60 pCi/L 5
Princeton 5.40 pCi/L 5
Sussex 9.75 pCi/L 4
Piscataway 6.75 pCi/L 4