Radon exposure is the second leading cause of lung cancer, yet few Americans test their homes for radon, particularly in rural areas. The academic team and community partners engaged the public library systems in four rural counties to offer digital radon detectors for check-out as a means of increasing the public's access to free radon testing. The check-out procedures and instructional materials were created through an iterative process, and library personnel were educated on radon and home radon testing prior to launching the lending program. Library patrons reported high usability, feasibility, and acceptability of the program. Library patron-staff interactions mainly included discussions about the logistics of radon testing. Given that public libraries are invested in making communities thrive and promoting health, providing library lending programs for radon detectors is a novel, feasible, and acceptable way to reduce the risk of lung cancer in the community.