We study the impact of a public school choice lottery in Charlotte-Mecklenburg (CMS) on postsecondary attainment. We match CMS administrative records to the National Student Clearinghouse (NSC), a nationwide database of college enrollment. Among applicants with low-quality neighborhood schools, lottery winners are more likely than lottery losers to graduate from high school, attend a four-year college, and earn a bachelor's degree. They are twice as likely to earn a degree from an elite university. The results suggest that school choice can improve students' longer-term life chances when they gain access to schools that are better on observed dimensions of quality.