Cortez, CO Radon Mitigation and Testing

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

Based on 2 user-submitted tests, the average radon level is 10.00 pCi/L.

Q: What EPA Radon Zone is Cortez in?

Cortez is in Montezuma County, EPA Zone 1.

Q: How much does radon mitigation cost in Cortez?

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

Montezuma County

EPA Zone 1

2 user tests

Cortez is located in Montezuma County, Colorado. With 2 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 81321 zip code.

10.00

pCi/L average

Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Cortez, CO. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Cortez, CO Radon Mitigation

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

Cortez, CO Radon Testing

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

Cortez, Colorado Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
4 pCi/L	Cortez, CO	51-99 Years	No Basement/All Slab	Mar 2024
16 pCi/L	Cortez, CO	51-99 Years	No Basement/All Crawl Space	Nov 2020

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

Cortez Radon Facts

Key details about the radon risk profile for Cortez and the 81321 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Montezuma County, CO

Zip Code

81321

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

10.00 pCi/L

User Tests Submitted

Cortez and the 81321 zip code are located in Montezuma 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 Cortez, CO

What is the average radon level in Cortez, CO?

Based on 2 user-submitted tests, the average radon level in Cortez 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 Cortez in?

Cortez and the 81321 zip code are in Montezuma 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 Cortez?

Radon mitigation in Cortez 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 Cortez?

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