Population and Lung Cancer Total Population: 1,339,057

Lung Cancer Deaths:
928

Age-Adjusted Lung Cancer Incidence Rate
(per 100,000) 69

Lung Cancer Cases

1,438

Radon-Induced Lung Cancer Cases

310

* Medical Costs (hospital, medicine, doctors)

$62,000,000

* Economic Costs (lost wages / productivity)

$65,000,000

Buildings and Exposure Potential

Pre-Mitigation Radon Tests: 11,825

Percent by Radon Level

< 2 pCi/L

≥ 2 to < 4 pCi/L

≥ 4 pCi/L

Housing Units by Structure Type

	1 to 4 Units	5 or More Units	Total
Existing	677,895	64,606	742,501
New	3,699	1,061	4,760

Public Schools: 595

EPA and ANSI-AARST Radon Measurement Standards recommend fixing a building with a radon level ≥ (above or equal to) 4 pCi/L and consider fixing it if any radon level is ≥ 2 and < (below) 4 pCi/L.

Statewide Radon Policies
Credential Required		State Registration
Radon Standards in Effect		EPA Measurement; ASTM Mitigation

Homebuyer Protection Required		Disclosure Only
Radon System Requirement for New Homes		All Counties
Type of New Home Where Required		All Residential Buildings
Standard/Code for Radon System in New Homes		ASTM 1465
School Testing Required		Recommended
Radon System Requirement for New Schools		Yes

Total Population; Lung Cancer Deaths; Age-Adjusted Lung Cancer Rate (per 100,000); Lung Cancer Deaths: CDC US Cancer Statistics (2018). Estimated Radon-Induced Lung Cancer Cases: Lung Cancer Cases weighted by scaled mean radon levels, CDC Environmental Public Health Tracking Network (2008-2017). National Cancer Institute, Cancer Trends Progress Report (2022) and Productivity Costs of Cancer Mortality in the US (2008). Statewide Radon Policies: IEA staff compilation, 2025. Pre-Mitigation Radon Tests from Labs: CDC Environmental Public Health Tracking Network (2008-2017). Existing Housing Units and New Housing Units: US Census (2019). Public Schools: National Center for Educational Statistics (2020-2021).