This Merrimack River community in Merrimack County currently has limited radon testing data available for zip code 03275. Suncook's location in New Hampshire's glaciated valley system, with granite bedrock underlying much of the area, creates conditions favorable for radon accumulation. The community's mix of mill-era housing and modern developments, many featuring full basements, makes testing particularly important.
6.00
pCi/L average
Above EPA Action Level
Based on 1 user-submitted radon test for homes in Suncook, NH. The EPA recommends taking action at or above 4.0 pCi/L.
0
4.0 EPA
10+
Suncook, NH Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Suncook, NH Radon Testing
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Suncook, New Hampshire Radon Levels
User-submitted radon test readings from homes in the Suncook area.
Radon Level
City
Home Age
Foundation
Submitted
6 pCi/L
Suncook, NH
21-50 Years
—
Jun 2026
Have a radon test result for Suncook? Submit your reading to help other homeowners.
Suncook Radon Facts
Key details about the radon risk profile for Suncook and the 03275 zip code area.
EPA Radon Zone
Zone 2 — Moderate Risk
County
Merrimack County, NH
Zip Code
03275
Predicted Screening Level
2–4 pCi/L (Zone 2)
Avg. User Submitted Level
6.00 pCi/L
User Tests Submitted
1
Suncook and the 03275 zip code are located in Merrimack County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.
Radon FAQ for Suncook, NH
What is the average radon level in Suncook, NH?
Based on 1 user-submitted test, the average radon level in Suncook is 6.00 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 Suncook in?
Suncook and the 03275 zip code are in Merrimack 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 Suncook?
Radon mitigation in Suncook 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 Suncook?
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 Hampshire
Cities with the most user-submitted radon test data in the state.
