Grand Junction, CO Radon Mitigation and Testing
Grand Junction is located in Mesa County, Colorado. With 7 user-submitted readings averaging 7.90 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 81501 zip code.
Based on 7 user-submitted radon tests for homes in Grand Junction, CO. The EPA recommends taking action at or above 4.0 pCi/L.
Grand Junction, CO Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Grand Junction, CO Radon Testing
Finding qualified radon testing professionals is the first step toward protecting your home.
Grand Junction, Colorado Radon Levels
User-submitted radon test readings from homes in the Grand Junction area.
| Radon Level | City | Home Age | Foundation | Submitted |
|---|---|---|---|---|
| 8 pCi/L | Grand Junction, CO | 0-20 Years | Full Basement | Jan 2026 |
| 4 pCi/L | Grand Junction, CO | 0-20 Years | No Basement/All Slab | May 2024 |
| 20 pCi/L | Grand Junction, CO | 51-99 Years | Partial Basement | Feb 2024 |
| 7 pCi/L | Grand Junction, CO | 21-50 Years | No Basement/All Crawl Space | Oct 2022 |
| 5 pCi/L | Grand Junction, CO | 0-20 Years | Partial Basement | Nov 2021 |
Have a radon test result for Grand Junction? Submit your reading to help other homeowners.
Grand Junction Radon Facts
Key details about the radon risk profile for Grand Junction and the 81501 zip code area.
Grand Junction and the 81501 zip code are located in Mesa 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 Grand Junction, CO
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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 |