Edgar, WI Radon Levels

Q: What EPA Radon Zone is Edgar in?

Edgar is in Marathon County, EPA Zone 1.

Q: Why are radon readings shown from areas near Edgar?

No homeowner radon tests have been submitted for Edgar yet, so readings from the closest cities and the Marathon County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Edgar?

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

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

Edgar, WI Radon Facts

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

County Marathon County, WI

Zip Code 54426

This small Marathon County community sits within Wisconsin's north-central region, where glacial deposits over crystalline bedrock create geological conditions that can produce significant radon levels. Testing data for Edgar in zip code 54426 is currently limited, emphasizing the importance of individual home testing. Wisconsin's cold climate and typical construction with full basements create conditions where radon can concentrate during heating seasons.

9.50

pCi/L area average

Above EPA Action Level

Marathon County average: 9.50 pCi/L, based on 2 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Edgar 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+

Edgar, WI Radon Mitigation

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

Need Radon Mitigation or Testing in Edgar?

100% Free, No-Obligation Quotes
Matches You with State-Licensed Marathon County Pros

1-800-299-3578 608-318-4941 (local) Toll-free · Mon–Fri 8am–6pm ET

Radon Readings Near Edgar, WI

No homeowner tests have been submitted for Edgar 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
Stratford	8.2 mi	13.00 pCi/L	1
Mosinee	17.6 mi	6.00 pCi/L	1
Marshfield	18.7 mi	13.50 pCi/L	2
Medford	23.7 mi	7.50 pCi/L	2
Stevens Point	34.4 mi	6.00 pCi/L	3
Wisconsin Rapids	36.8 mi	4.50 pCi/L	2
Gleason	39.8 mi	4.00 pCi/L	2
Wittenberg	41.8 mi	11.00 pCi/L	1

Marathon County Radon Profile

Because of its underlying geology, Marathon 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 Marathon County average 9.50 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 Marathon County home regardless of zone or a neighbor's results.

Radon FAQ for Edgar, WI

What EPA Radon Zone is Edgar in?

Edgar and the 54426 zip code are in Marathon 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 Edgar?

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

Radon mitigation in Edgar 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 Edgar?

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.