Frederick, CO Radon Levels

Q: What EPA Radon Zone is Frederick in?

Frederick is in Weld County, EPA Zone 1.

Q: How much does radon mitigation cost in Frederick?

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

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

Frederick, CO Radon Facts

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

County Weld County, CO

Zip Code 80530

Frederick in Weld County within the Greeley Metro sits on Colorado's Front Range plains where sedimentary bedrock and prairie soils create variable radon conditions. While testing data for zip code 80530 isn't available, Colorado's generally elevated radon potential makes home testing particularly recommended for residents. The area's rapid suburban development and mix of new construction with agricultural properties creates diverse foundation types that can influence radon accumulation.

8.05

pCi/L area average

Above EPA Action Level

Weld County average: 8.05 pCi/L, based on 20 user-submitted tests across 7 cities in the county. No homeowner readings have been submitted for Frederick 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+

Frederick, CO 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 Frederick, CO

No homeowner tests have been submitted for Frederick 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
Erie	7.8 mi	20.00 pCi/L	1
Longmont	8.5 mi	8.00 pCi/L	4
Lafayette	11.2 mi	8.00 pCi/L	2
Brighton	11.5 mi	6.00 pCi/L	2
Broomfield	13.9 mi	5.00 pCi/L	1
Johnstown	16.4 mi	9.50 pCi/L	4
Berthoud	16.7 mi	12.00 pCi/L	2
Boulder	18.1 mi	12.00 pCi/L	1

Weld County Radon Profile

Weld County falls in EPA Radon Zone 1, meaning the local uranium-bearing geology is predicted to drive average indoor radon screening levels above the EPA's 4 pCi/L action threshold. Homeowner-submitted tests from 7 cities in Weld County average 8.05 pCi/L across 20 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Weld County to test, as levels can differ between neighboring homes.

Radon FAQ for Frederick, CO

What EPA Radon Zone is Frederick in?

Frederick and the 80530 zip code are in Weld 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 Frederick?

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

Radon mitigation in Frederick 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 Frederick?

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.