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Norfolk, MA Radon Levels

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


Norfolk, MA Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Norfolk County, MA
Zip Code 02056
Avg. User Level 4.00 pCi/L
User Tests 1

Located in Norfolk County southwest of Boston, this suburban community shows an average radon level of 4.0 pCi/L based on limited testing data. While this reading sits right at the EPA action threshold, individual homes in zip code 02056 may vary significantly due to local soil conditions and construction differences. The area's mix of colonial-era homes and modern developments reflects the broader Boston Metro housing landscape.

4.00
pCi/L average
Above EPA Action Level

Based on 1 user-submitted radon test for homes in Norfolk, MA. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Norfolk, MA Radon Mitigation

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

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Norfolk, MA Radon Levels

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

Radon LevelCityHome AgeFoundation
4 pCi/L Norfolk, MA 100+ Years Full Basement

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

Radon Readings Near Norfolk, MA

Compare radon levels in Norfolk with the closest nearby cities that have user-submitted test data.

CityDistanceAvg User LevelReadings
Franklin 4.4 mi 9.00 pCi/L 2
Foxboro 5.6 mi 7.50 pCi/L 2
Norwood 7.9 mi 5.00 pCi/L 1
Holliston 8.1 mi 4.00 pCi/L 1
Westwood 9.0 mi 5.00 pCi/L 1
North Attleboro 9.7 mi 4.00 pCi/L 1
Milford 10.5 mi 5.00 pCi/L 2
Hopedale 10.8 mi 7.00 pCi/L 1

Norfolk County Radon Profile

The soils and bedrock of Norfolk County place it in EPA Radon Zone 2, a moderate-risk classification with predicted indoor averages of 2 to 4 pCi/L. Homeowner-submitted tests from 17 cities in Norfolk County average 8.08 pCi/L across 25 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Norfolk County to test, as levels can differ between neighboring homes.

Radon FAQ for Norfolk, MA

What is the average radon level in Norfolk, MA?
Based on 1 user-submitted test, the average radon level in Norfolk is 4.00 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 Norfolk in?
Norfolk and the 02056 zip code are in Norfolk 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 Norfolk?
Radon mitigation in Norfolk 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 Norfolk?
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.