Winfield, PA Radon Levels

Q: What EPA Radon Zone is Winfield in?

Winfield is in Union County, EPA Zone 1.

Q: How much does radon mitigation cost in Winfield?

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

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

Winfield, PA Radon Facts

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

County Union County, PA

Zip Code 17889

Winfield lies in central Pennsylvania's Union County, where the region's complex Appalachian geology creates varied radon potential across different neighborhoods. The 17889 zip code currently has limited testing data, though the area's mountainous terrain and diverse rock formations can produce significantly different radon levels within short distances. Homeowners should conduct testing to understand their specific property's radon profile.

12.33

pCi/L area average

Above EPA Action Level

Union County average: 12.33 pCi/L, based on 3 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Winfield 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+

Winfield, 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 Winfield, PA

No homeowner tests have been submitted for Winfield 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	4.0 mi	7.00 pCi/L	2
Selinsgrove	4.7 mi	11.00 pCi/L	1
Lewisburg	5.8 mi	13.00 pCi/L	1
Mifflinburg	9.6 mi	4.00 pCi/L	1
New Columbia	11.4 mi	20.00 pCi/L	1
Danville	14.4 mi	5.67 pCi/L	3
Coal Township	18.1 mi	8.00 pCi/L	1
Williamsport	24.0 mi	16.00 pCi/L	4

Union County Radon Profile

The bedrock and soils beneath Union 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 3 cities in Union County average 12.33 pCi/L across 3 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 Union County.

Radon FAQ for Winfield, PA

What EPA Radon Zone is Winfield in?

Winfield and the 17889 zip code are in Union 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 Winfield?

No homeowner radon tests have been submitted for Winfield yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Union County average—are the best available indicator of local conditions until Winfield 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 Winfield?

Radon mitigation in Winfield 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 Winfield?

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.