Radon is a colorless, odorless radioactive gas that naturally comes from the soil. It can enter any building—homes, offices, and schools—and result in a high indoor radon level. Radon gives off radioactive particles that, when breathed in, can damage the lining of the lungs. The U.S. Surgeon General has warned that radon is the second leading cause of lung cancer in the United States today. Radon accounts for about 21,000 lung cancer deaths every year and is a serious public health issue in Minnesota, where 2 in 5 of tested homes have radon levels that are a major health risk.
For more information, visit MN Public Health Data Access: Radon.
The Minnesota Department of Health does not guarantee the geographic accuracy or completeness of mapped boundaries and features. Geographic boundaries on this map are subject to periodic updates (e.g., zip code boundaries and census tracts change over time) and may vary across sources.
Region | Census Tract | Average Annual Properties Tested per 10,000 | Average Annual Number of Properties Tested | Number of Housing Units | Median Radon Value pCi/LN | Average (Geometric) Radon Value pCi/L | Percent of Properties Tested ≥ 4 pCi/L in county |
|---|---|---|---|---|---|---|---|
| Minnesota | n/a | 93.5 | 22794.0 | 2,438,203 | 3.1 | 2.8 | 40.3% |
County | Census Tract | Average Annual Properties Tested per 10,000 | Average Annual Number of Properties Tested | Number of Housing Units | Median Radon Value pCi/LN | Average (Geometric) Radon Value pCi/L | Percent of Properties Tested ≥ 4 pCi/L in county |
|---|---|---|---|---|---|---|---|
| Aitkin | 27001770100 | 17.0 | 5.0 | 2,988 | 2.6 | 2.3 | 32.5% |
| Aitkin | 27001770200 | 12.8 | 3.0 | 2,267 | 2.1 | 1.8 | 32.5% |
| Aitkin | 27001770300 | 36.4 | 7.0 | 2,022 | 2.8 | 2.1 | 32.5% |
| Aitkin | 27001770400 | 12.2 | 4.0 | 3,573 | 2.9 | 2.1 | 32.5% |
| Aitkin | 27001790501 | 13.6 | 3.0 | 2,333 | 2.0 | 1.5 | 32.5% |
| Aitkin | 27001790502 | 27.6 | 10.0 | 3,560 | 2.9 | 2.3 | 32.5% |
| Anoka | 27003050107 | 55.6 | 6.0 | 1,030 | 2.4 | 2.0 | 16.2% |
| Anoka | 27003050108 | 69.9 | 13.0 | 1,808 | 1.9 | 1.8 | 16.2% |
| Anoka | 27003050109 | 67.2 | 13.0 | 1,921 | 1.5 | 1.5 | 16.2% |
| Anoka | 27003050110 | 56.0 | 6.0 | 1,022 | 1.8 | 1.6 | 16.2% |