Norfolk, NY Radon Mitigation and Testing

Q: What is the average radon level in Norfolk, NY?

Based on 1 user-submitted tests, the average radon level is 7.00 pCi/L.

Q: What EPA Radon Zone is Norfolk in?

Norfolk is in St Lawrence County, EPA Zone Unknown.

Q: How much does radon mitigation cost in Norfolk?

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

Avg: 7.00 pCi/L

St Lawrence County

EPA Zone Unknown

1 user test

Positioned in rural St Lawrence County in northern New York's Adirondack region, Norfolk shows an average radon level of 7.0 pCi/L, exceeding the EPA action threshold. The area's Precambrian bedrock and glacial deposits contribute to elevated radon potential across zip code 13667. Given these geological conditions and the community's older housing stock, testing and mitigation should be priorities for local homeowners.

7.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Norfolk, NY Radon Mitigation

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

Norfolk, NY Radon Testing

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

Norfolk, New York Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
7 pCi/L	Norfolk, NY	100+ Years	Partial Basement	Oct 2025

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

Norfolk Radon Facts

Key details about the radon risk profile for Norfolk and the 13667 zip code area.

EPA Radon Zone

Unknown

County

St Lawrence County, NY

Zip Code

13667

Predicted Screening Level

Unknown

Avg. User Submitted Level

7.00 pCi/L

User Tests Submitted

Norfolk and the 13667 zip code are located in St Lawrence County, which has an EPA assigned Radon Zone of Unknown. A radon zone of Unknown does not have sufficient data for classification. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Norfolk, NY

What is the average radon level in Norfolk, NY?

Based on 1 user-submitted test, the average radon level in Norfolk is 7.00 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 13667 zip code are in St Lawrence County, which has an EPA assigned Radon Zone of Unknown. A zone of Unknown does not have sufficient data for classification.

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.

Most Active Radon Markets in New York

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

City	Avg User Radon Level	Submissions
Brooklyn	10.80 pCi/L	5
Oneonta	6.50 pCi/L	4
Clifton Park	3.75 pCi/L	4
Elmira	15.00 pCi/L	3
Saugerties	10.67 pCi/L	3
Staten Island	4.00 pCi/L	3
New York	9.00 pCi/L	2
Yonkers	8.00 pCi/L	2
Horseheads	7.50 pCi/L	2
Poughkeepsie	16.00 pCi/L	1
Buffalo	4.00 pCi/L	1
Pelham	3.00 pCi/L	1