Nestled in the scenic Monadnock Region of Hillsborough County, Peterborough sits on glacial till and bedrock typical of New Hampshire's geological landscape. Based on available testing data, the community shows an average radon level of 2.0 pCi/L, which falls within EPA recommended ranges, though continued testing remains important given the region's variable granite-based geology.
2.00
pCi/L average
Below EPA Action Level
Based on 1 user-submitted radon test for homes in Peterborough, NH. The EPA recommends taking action at or above 4.0 pCi/L.
0
4.0 EPA
10+
Peterborough, NH Radon Mitigation
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User-submitted radon test readings from homes in the Peterborough area.
Radon Level
City
Home Age
Foundation
2 pCi/L
Peterborough, NH
100+ Years
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Have a radon test result for Peterborough? Submit your reading to help other homeowners.
Radon FAQ for Peterborough, NH
What is the average radon level in Peterborough, NH?
Based on 1 user-submitted test, the average radon level in Peterborough is 2.00 pCi/L. This is below the EPA's recommended action level of 4.0 pCi/L. However, we recommend all homes be tested regardless of your neighbor's results.
What EPA Radon Zone is Peterborough in?
Peterborough and the 03458 zip code are in Hillsborough 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 Peterborough?
Radon mitigation in Peterborough 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 Peterborough?
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.
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