Englewood, CO Radon Mitigation and Testing

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

Based on 2 user-submitted tests, the average radon level is 11.00 pCi/L.

Q: What EPA Radon Zone is Englewood in?

Englewood is in Arapahoe County, EPA Zone 1.

Q: How much does radon mitigation cost in Englewood?

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

Avg: 11.00 pCi/L

Arapahoe County

EPA Zone 1

2 user tests

This Denver Metro suburb in Arapahoe County has recorded an average radon level of 10.0 pCi/L, significantly exceeding the EPA action threshold. Englewood's position along the Front Range, where uranium-bearing granite meets sedimentary formations, creates ideal conditions for elevated radon levels that require immediate mitigation attention.

11.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Englewood, CO Radon Mitigation

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

Englewood, CO Radon Testing

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

Englewood, Colorado Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
12 pCi/L	Englewood, CO	21-50 Years	No Basement/All Slab	Mar 2026
10 pCi/L	Englewood, CO	21-50 Years	Full Basement	Feb 2020

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

Englewood Radon Facts

Key details about the radon risk profile for Englewood and the 80110 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Arapahoe County, CO

Zip Code

80110

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

11.00 pCi/L

User Tests Submitted

Englewood and the 80110 zip code are located in Arapahoe 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 Englewood, CO

What is the average radon level in Englewood, CO?

Based on 2 user-submitted tests, the average radon level in Englewood is 11.00 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 Englewood in?

Englewood and the 80110 zip code are in Arapahoe 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 Englewood?

Radon mitigation in Englewood 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 Englewood?

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