Hopkinton, MA Radon Levels
Check local Hopkinton radon levels and find certified testing and mitigation professionals to keep your home safe
Hopkinton, MA Radon Facts
This Middlesex County community in the Boston Metro area has recorded an average radon level of 9.33 pCi/L, well above the EPA action threshold of 4.0 pCi/L. Situated on glaciated New England terrain with granite bedrock, Hopkinton's housing stock includes both colonial-era homes and modern suburban development, most with full basements. Given these significantly elevated readings in zip code 01748, radon mitigation is strongly recommended for area residents.
Based on 3 user-submitted radon tests for homes in Hopkinton, MA. The EPA recommends taking action at or above 4.0 pCi/L.
Hopkinton, MA Radon Mitigation
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Hopkinton, MA Radon Levels
User-submitted radon test readings from homes in the Hopkinton area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 11 pCi/L | Hopkinton, MA | 21-50 Years | Full Basement |
| 8 pCi/L | Hopkinton , MA | 21-50 Years | Partial Basement |
| 9 pCi/L | Hopkinton, MA | 0-20 Years | Full Basement |
Have a radon test result for Hopkinton? Submit your reading to help other homeowners.
Radon Readings Near Hopkinton, MA
Compare radon levels in Hopkinton with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Ashland | 4.4 mi | 5.33 pCi/L | 3 |
| Milford | 4.7 mi | 5.00 pCi/L | 2 |
| Upton | 4.8 mi | 7.00 pCi/L | 1 |
| Holliston | 4.9 mi | 4.00 pCi/L | 1 |
| Westborough | 5.6 mi | 6.00 pCi/L | 2 |
| Hopedale | 6.4 mi | 7.00 pCi/L | 1 |
| Framingham | 7.2 mi | 6.50 pCi/L | 2 |
| Grafton | 8.1 mi | 11.00 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.