The Americans with Disabilities Act (ADA) was passed in 1990 and implemented in 1992 with the goal of providing disabled workers with employment protections and workplace accommodations. A number of studies have examined the ADA’s impact on disabled individuals’ employment. Some prominent studies find that employment decreased as a result of the ADA, as employers faced extra responsibilities and costs when hiring disabled workers. It is important to also understand the ADA’s impact on Social Security Disability Insurance (SSDI), the key social insurance program for disabled workers. I investigate this using state and county data on SSDI outcomes and a range of complementary demographic and economic characteristics data. After the ADA’s passage, there is evidence of an increase in SSDI applications, although there is little direct evidence that these higher applications result in more SSDI allowances. The number of SSDI beneficiaries increases slightly over time, suggesting that the ADA may have led to some combination of higher allowances and lower terminations. All of these effects are concentrated in states without employment protections prior to the ADA, as opposed to states with protections but no disability accommodations. The results suggest that the ADA may have affected SSDI outcomes, and that it is important to further understand the interaction between disability-related employment law and federal disability programs.