Ketchum, ID Radon Mitigation and Testing

Q: What is the average radon level in Ketchum, ID?

Based on 2 user-submitted tests, the average radon level is 14.50 pCi/L.

Q: What EPA Radon Zone is Ketchum in?

Ketchum is in Blaine County, EPA Zone 1.

Q: How much does radon mitigation cost in Ketchum?

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

Avg: 14.50 pCi/L

Blaine County

EPA Zone 1

2 user tests

Ketchum is located in Blaine County, Idaho. With 2 user-submitted readings averaging 14.50 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 83340 zip code.

14.50

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Ketchum, ID Radon Mitigation

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

Ketchum, ID Radon Testing

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

Ketchum, Idaho Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
14 pCi/L	Ketchum, ID	51-99 Years	Partial Basement	Nov 2023
15 pCi/L	Ketchum, ID	21-50 Years	Full Basement	Oct 2017

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

Ketchum Radon Facts

Key details about the radon risk profile for Ketchum and the 83340 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Blaine County, ID

Zip Code

83340

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

14.50 pCi/L

User Tests Submitted

Ketchum and the 83340 zip code are located in Blaine 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 Ketchum, ID

What is the average radon level in Ketchum, ID?

Based on 2 user-submitted tests, the average radon level in Ketchum is 14.50 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 Ketchum in?

Ketchum and the 83340 zip code are in Blaine 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 Ketchum?

Radon mitigation in Ketchum 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 Ketchum?

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 Idaho

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

City	Avg User Radon Level	Submissions
Idaho Falls	7.29 pCi/L	7
Hailey	7.83 pCi/L	6
Post Falls	9.00 pCi/L	5
Coeur D Alene	9.00 pCi/L	4
Moscow	7.75 pCi/L	4
Victor	6.67 pCi/L	3
Driggs	16.00 pCi/L	2
Hayden	8.50 pCi/L	2
Pocatello	8.50 pCi/L	2
Eagle	6.00 pCi/L	1
Boise	No submissions	0
Nampa	No submissions	0
Sandpoint	No submissions	0