Among 544 respondents with four or more ACEs, 18.3% reported ever attempting suicide; the adjusted odds ratio versus zero ACEs was 12.2 (95% CI 8.5–17.5). The zero-ACE comparison group had 1.2% attempted suicide among 3,852 respondents. Questionnaires were mailed to 13,494 adults, 9,508 responded, and 8,056 remained in the principal analysis. Odds ratios were adjusted for age, gender, race, and educational attainment; retrospective self-report demonstrates association and limits causal inference.