Understanding disparities in access to naloxone among people who inject drugs in Southeast Michigan using respondent driven sampling.

•We examined naloxone access of people who inject drugs (PWID) in Southeast Michigan.•Overall self-reported naloxone access was: 24.9 %.•PWID naloxone access by location were: 18.3 %, urban; 41.9 %, suburban/rural.•Naloxone access is associated with race/ethnicity, social economic status (e.g. insurance coverage) and recent homelessness.•No age or gender differences in naloxone access.