Fort Collins, CO Radon Mitigation and Testing

Q: What is the average radon level in Fort Collins, CO?

Based on 1 user-submitted tests, the average radon level is 10.00 pCi/L.

Q: What EPA Radon Zone is Fort Collins in?

Fort Collins is in Larimer County, EPA Zone 1.

Q: How much does radon mitigation cost in Fort Collins?

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

Avg: 10.00 pCi/L

Larimer County

EPA Zone 1

1 user test

Fort Collins is located in Larimer County, Colorado. With 1 user-submitted readings averaging 10.00 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 80521 zip code.

10.00

pCi/L average

Above EPA Action Level

Based on 1 user-submitted radon test for homes in Fort Collins, CO. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Fort Collins, CO Radon Mitigation

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

Fort Collins, CO Radon Testing

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

Fort Collins, Colorado Radon Levels

User-submitted radon test readings from homes in the Fort Collins area.

Radon Level	City	Home Age	Foundation	Submitted
10 pCi/L	Fort Collins, CO	21-50 Years	Partial Basement	Jul 2018

Have a radon test result for Fort Collins? Submit your reading to help other homeowners.

Fort Collins Radon Facts

Key details about the radon risk profile for Fort Collins and the 80521 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Larimer County, CO

Zip Code

80521

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

10.00 pCi/L

User Tests Submitted

Fort Collins and the 80521 zip code are located in Larimer 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 Fort Collins, CO

What is the average radon level in Fort Collins, CO?

Based on 1 user-submitted test, the average radon level in Fort Collins is 10.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Fort Collins in?

Fort Collins and the 80521 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.

How much does radon mitigation cost in Fort Collins?

Radon mitigation in Fort Collins 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 Fort Collins?

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