Carbondale, CO Radon Levels

Q: What EPA Radon Zone is Carbondale in?

Carbondale is in Pitkin County, EPA Zone 1.

Q: How much does radon mitigation cost in Carbondale?

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

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

Carbondale, CO Radon Facts

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

County Pitkin County, CO

Zip Code 81623

Located in the scenic Roaring Fork Valley of Pitkin County, Carbondale sits among Colorado's high-altitude terrain where granite bedrock and mountain soils create elevated radon potential. The community features a blend of historic homes and modern mountain construction, many with full basements. Limited local testing data makes individual radon testing particularly important for residents in zip code 81623.

4.00

pCi/L area average

Above EPA Action Level

Pitkin County average: 4.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Carbondale 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+

Carbondale, CO 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 Carbondale?

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

1-800-299-3578 970-205-9067 (local) Toll-free · Mon–Fri 8am–6pm ET

Radon Readings Near Carbondale, CO

No homeowner tests have been submitted for Carbondale 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
Glenwood Springs	20.3 mi	8.00 pCi/L	1
Aspen	20.7 mi	4.00 pCi/L	1
New Castle	28.5 mi	4.00 pCi/L	1
Crested Butte	29.4 mi	8.56 pCi/L	9
Gypsum	31.1 mi	5.00 pCi/L	1
Edwards	31.3 mi	6.75 pCi/L	4
Paonia	34.0 mi	6.00 pCi/L	1
Rifle	37.4 mi	7.00 pCi/L	1

Pitkin County Radon Profile

The bedrock and soils beneath Pitkin 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 1 city in Pitkin County average 4.00 pCi/L across 1 test — 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 Pitkin County.

Radon FAQ for Carbondale, CO

What EPA Radon Zone is Carbondale in?

Carbondale and the 81623 zip code are in Pitkin 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 Carbondale?

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

Radon mitigation in Carbondale 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 Carbondale?

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.