Wellington, CO Radon Levels

Q: What EPA Radon Zone is Wellington in?

Wellington is in Larimer County, EPA Zone 1.

Q: How much does radon mitigation cost in Wellington?

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

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

Wellington, CO Radon Facts

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

County Larimer County, CO

Zip Code 80549

Positioned in northern Colorado's Larimer County within both the Fort Collins and Greeley Metro areas, Wellington sits on the High Plains where Pierre Shale and other formations contribute to Colorado's elevated radon potential. The growing community features newer suburban developments with full basements typical of Front Range construction, as well as some rural properties with varying foundation types. Testing data for zip code 80549 is limited, making individual home testing essential given Colorado's high radon risk.

10.75

pCi/L area average

Above EPA Action Level

Larimer County average: 10.75 pCi/L, based on 12 user-submitted tests across 7 cities in the county. No homeowner readings have been submitted for Wellington 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+

Wellington, 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 Wellington, CO

No homeowner tests have been submitted for Wellington 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
Fort Collins	12.1 mi	5.50 pCi/L	2
Windsor	18.1 mi	7.00 pCi/L	5
Livermore	20.6 mi	20.00 pCi/L	1
Eaton	21.5 mi	7.00 pCi/L	1
Loveland	22.3 mi	4.50 pCi/L	2
Johnstown	27.5 mi	9.50 pCi/L	4
Greeley	28.0 mi	4.67 pCi/L	3
Evans	29.6 mi	6.33 pCi/L	3

Larimer County Radon Profile

Because of its underlying geology, Larimer 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 7 cities in Larimer County average 10.75 pCi/L across 12 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 Larimer County home regardless of zone or a neighbor's results.

Radon FAQ for Wellington, CO

What EPA Radon Zone is Wellington in?

Wellington and the 80549 zip code are in Larimer 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 Wellington?

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

Radon mitigation in Wellington 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 Wellington?

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.