Sunbury, PA Radon Levels

Q: What EPA Radon Zone is Sunbury in?

Sunbury is in Northumberland County, EPA Zone 1.

Q: How much does radon mitigation cost in Sunbury?

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

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

Sunbury, PA Radon Facts

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

County Northumberland County, PA

Zip Code 17801

Sunbury sits along the Susquehanna River in Northumberland County, where Pennsylvania's complex geology creates significant radon potential throughout the region. Testing data for zip code 17801 remains limited, making individual home assessment crucial for residents. The area's mix of historic riverfront properties and established neighborhoods, many with stone foundations and basements, requires particular attention to radon entry points.

14.00

pCi/L area average

Above EPA Action Level

Northumberland County average: 14.00 pCi/L, based on 2 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Sunbury itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Sunbury, PA Radon Mitigation

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

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Radon Readings Near Sunbury, PA

No homeowner tests have been submitted for Sunbury yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Shamokin Dam	2.4 mi	7.00 pCi/L	2
Selinsgrove	5.3 mi	11.00 pCi/L	1
Lewisburg	10.5 mi	13.00 pCi/L	1
Danville	11.8 mi	5.67 pCi/L	3
Coal Township	12.6 mi	8.00 pCi/L	1
Mifflinburg	15.0 mi	4.00 pCi/L	1
New Columbia	15.2 mi	20.00 pCi/L	1
Valley View	19.0 mi	20.00 pCi/L	1

Northumberland County Radon Profile

Because of its underlying geology, Northumberland County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 2 cities in Northumberland County average 14.00 pCi/L across 2 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Northumberland County home regardless of zone or a neighbor's results.

Radon FAQ for Sunbury, PA

What EPA Radon Zone is Sunbury in?

Sunbury and the 17801 zip code are in Northumberland 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.

Why are radon readings shown from areas near Sunbury?

No homeowner radon tests have been submitted for Sunbury yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Northumberland County average—are the best available indicator of local conditions until Sunbury homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in Sunbury?

Radon mitigation in Sunbury 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 Sunbury?

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.