Introduction: Substance use disorder (SUD) stigma undermines the implementation of effective harm reduction and treatment strategies in the U.S. and can impede individuals from seeking treatment. One research question guided this study: How do personal beliefs regarding SUD, familiarity with SUDs, and culture (religion, political ideology, and urbanicity), shape perceived societal SUD stigma? Methods: An online survey was sent to affiliates of a Michigan-based organization, Families Against Narcotics and administrators of Michigan Prepaid Inpatient Health Plan regional entities (N = 1,559). Results: On average respondents viewed society as moderately stigmatizing. The beliefs that drug users can stop whenever they want and that drug users have weak character were significantly associated with greater perceived levels of societal SUD stigma. The effects of religion on perceived stigma may be affected by beliefs of the immorality of drug use, while the effects of political ideology on perceived stigma may differ based on beliefs of the controllability of drug use. The effect of urbanicity may rely on perceived accessibility of treatment. Conclusion: Our findings reflect the intersection of personal beliefs and cultural contexts as they shape perceived societal SUD stigmatization.