--- - |2+ Objectives This study aims to determine if private school choice reduces the proclivity of students to commit crimes as adults. Methods We examine crime rates for young adults who experienced Milwaukee's citywide voucher program as high school students compared to matched public school peers using unique data collected as part of a longitudinal evaluation of the program. Results We find that mere exposure to private schooling through a voucher is associated with lower rates of criminal activity, but the relationship is not robust to different analytic samples. Students who used the program through 12th grade, however, were much less likely to have criminal records than their public school peers. These results are apparent when controlling for a robust set of student demographics, test scores, and parental characteristics. Conclusions We conclude that merely being exposed to private schooling for a short time through a voucher program may not have a significant impact on criminal activity, though persistently attending a private school through a voucher program can decrease subsequent crime rates. - 'Social Science Quarterly, Volume 100, Issue 6, Page 2302-2315, October 2019. '