From the Pima County Public Health website:
BinaxNOW At-Home Test Pickup
If you are exhibiting COVID-19 symptoms, please go to one of our free testing centers listed above.
Free BinaxNOW rapid, at-home antigen tests are available to be picked up at ALL PIMA COUNTY PUBLIC LIBRARIES. To locate the closest public library and to check hours of operation for each location please visit the Pima County Public Library page here.
Due to high demand, test kits (which include two COVID-19 antigen tests) will be limited to one kit per person. Any individual receiving a test will be asked to fill out a demographic information form when receiving the test kit.