Golden, CO Radon Mitigation and Testing

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

Based on 2 user-submitted tests, the average radon level is 9.00 pCi/L.

Q: What EPA Radon Zone is Golden in?

Golden is in Jefferson County, EPA Zone 1.

Q: How much does radon mitigation cost in Golden?

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

Avg: 9.00 pCi/L

Jefferson County

EPA Zone 1

2 user tests

Golden is located in Jefferson County, Colorado. With 2 user-submitted readings averaging 9.00 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 80401 zip code.

9.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Golden, CO Radon Mitigation

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

Golden, CO Radon Testing

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

Golden, Colorado Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
8 pCi/L	Golden, CO	21-50 Years	Partial Basement	Feb 2025
10 pCi/L	Golden, CO	51-99 Years	Partial Basement	Feb 2020

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

Golden Radon Facts

Key details about the radon risk profile for Golden and the 80401 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Jefferson County, CO

Zip Code

80401

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

9.00 pCi/L

User Tests Submitted

Golden and the 80401 zip code are located in Jefferson 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 Golden, CO

What is the average radon level in Golden, CO?

Based on 2 user-submitted tests, the average radon level in Golden is 9.00 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 Golden in?

Golden and the 80401 zip code are in Jefferson 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 Golden?

Radon mitigation in Golden 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 Golden?

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