Littleton, MA Radon Levels

Q: What is the average radon level in Littleton, MA?

Based on 5 user-submitted tests, the average radon level is 9.40 pCi/L.

Q: What EPA Radon Zone is Littleton in?

Littleton is in Middlesex County, EPA Zone 1.

Q: How much does radon mitigation cost in Littleton?

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

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

Littleton, MA Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Middlesex County, MA

Zip Code 01460

Avg. User Level 9.40 pCi/L

User Tests 5

Positioned in Middlesex County within the Boston Metro area, Littleton shows an average radon level of 9.4 pCi/L, more than double the EPA action threshold. The town's location on granite bedrock and glacial till creates geological conditions highly conducive to radon production. Residents across ZIP code 01460 should prioritize radon testing, especially given the area's mix of older colonial homes and newer construction with basement foundations.

9.40

pCi/L average

Above EPA Action Level

Based on 5 user-submitted radon tests for homes in Littleton, MA. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Littleton, MA Radon Mitigation

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Littleton, MA Radon Levels

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

Radon Level	City	Home Age	Foundation
3 pCi/L	Littleton, MA	51-99 Years	Full Basement
6 pCi/L	Littleton, MA	100+ Years	Full Basement
18 pCi/L	Littleton, MA	21-50 Years	Full Basement
10 pCi/L	Littleton, MA	21-50 Years	Full Basement

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

Radon Readings Near Littleton, MA

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

City	Distance	Avg User Level	Readings
Westford	4.0 mi	12.67 pCi/L	3
Acton	4.9 mi	20.00 pCi/L	1
Harvard	5.3 mi	12.00 pCi/L	1
Groton	6.2 mi	5.00 pCi/L	1
Chelmsford	7.6 mi	11.50 pCi/L	4
Stow	7.7 mi	7.00 pCi/L	1
Concord	8.1 mi	4.00 pCi/L	1
Shirley	8.5 mi	1.00 pCi/L	1

Middlesex County Radon Profile

The bedrock and soils beneath Middlesex County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 46 cities in Middlesex County average 7.28 pCi/L across 90 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Middlesex County.

Radon FAQ for Littleton, MA

What is the average radon level in Littleton, MA?

Based on 5 user-submitted tests, the average radon level in Littleton is 9.40 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 Littleton in?

Littleton and the 01460 zip code are in Middlesex 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 Littleton?

Radon mitigation in Littleton 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 Littleton?

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.

Littleton, MA Radon Levels

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

Littleton, MA Radon Facts

Littleton, MA Radon Mitigation

Need Radon Mitigation or Testing in Littleton?

Littleton, MA Radon Levels

Radon Readings Near Littleton, MA

Middlesex County Radon Profile

Radon FAQ for Littleton, MA

Nearby Cities

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