Cotopaxi, CO Radon Mitigation and Testing

Q: What EPA Radon Zone is Cotopaxi in?

Cotopaxi is in Fremont County, EPA Zone 1.

Q: How much does radon mitigation cost in Cotopaxi?

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

Fremont County

EPA Zone 1

Located in Colorado's Fremont County along the Arkansas River valley, Cotopaxi sits at elevation where granite and metamorphic bedrock can contribute to radon gas production. Limited testing data for the 81223 zip code area emphasizes the importance of professional radon testing for mountain community residents. The area's high-altitude location and diverse geological conditions typical of the Colorado Rockies require individual property assessment.

Cotopaxi, CO Radon Mitigation

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

Cotopaxi, CO Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Cotopaxi Radon Facts

Key details about the radon risk profile for Cotopaxi and the 81223 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Fremont County, CO

Zip Code

81223

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Cotopaxi and the 81223 zip code are located in Fremont County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Cotopaxi, CO

What EPA Radon Zone is Cotopaxi in?

Cotopaxi and the 81223 zip code are in Fremont 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.

How much does radon mitigation cost in Cotopaxi?

Radon mitigation in Cotopaxi 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 Cotopaxi?

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.

Most Active Radon Markets in Colorado

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Fairplay	12.00 pCi/L	9
Crested Butte	8.56 pCi/L	9
Denver	6.22 pCi/L	9
Montrose	9.25 pCi/L	8
Gunnison	7.38 pCi/L	8
Buena Vista	12.57 pCi/L	7
Pueblo	10.67 pCi/L	6
Grand Junction	8.17 pCi/L	6
Bayfield	6.00 pCi/L	6
Canon City	10.80 pCi/L	5
Aurora	7.40 pCi/L	5
Windsor	7.00 pCi/L	5
Telluride	6.80 pCi/L	5
Parker	5.40 pCi/L	5
Salida	15.50 pCi/L	4
Johnstown	9.50 pCi/L	4
Granby	9.00 pCi/L	4
Longmont	8.00 pCi/L	4
Edwards	6.75 pCi/L	4
Mancos	6.00 pCi/L	4