Raymore, MO Radon Levels

Q: What EPA Radon Zone is Raymore in?

Raymore is in Cass County, EPA Zone 1.

Q: How much does radon mitigation cost in Raymore?

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

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

Raymore, MO Radon Facts

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

County Cass County, MO

Zip Code 64083

Part of the Kansas City Metro in Cass County, Raymore sits on glacial till deposits over limestone bedrock that contribute to Missouri's high radon potential across the region. Testing data for zip code 64083 remains insufficient to establish specific community patterns. Given the area's geological conditions and the prevalence of full basements in local housing stock, professional radon testing is strongly recommended for all Raymore homes, particularly those built before modern radon-resistant construction techniques.

14.00

pCi/L area average

Above EPA Action Level

Cass County average: 14.00 pCi/L, based on 3 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Raymore 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+

Raymore, MO 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 Raymore, MO

No homeowner tests have been submitted for Raymore 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
Belton	4.4 mi	7.00 pCi/L	1
Grandview	6.6 mi	9.00 pCi/L	1
Lees Summit	9.8 mi	7.00 pCi/L	3
Pleasant Hill	11.3 mi	15.00 pCi/L	1
Harrisonville	12.9 mi	20.00 pCi/L	1
Blue Springs	17.2 mi	14.00 pCi/L	1
Grain Valley	20.4 mi	14.00 pCi/L	2
Independence	20.5 mi	5.00 pCi/L	1

Cass County Radon Profile

The bedrock and soils beneath Cass 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 Cass County average 14.00 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 Cass County.

Radon FAQ for Raymore, MO

What EPA Radon Zone is Raymore in?

Raymore and the 64083 zip code are in Cass 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 Raymore?

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

Radon mitigation in Raymore 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 Raymore?

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.