Most U.S. adults haven't been tested for HIV. The national initiative Ending the HIV Epidemic aims to reduce new HIV infections by 90% from 2020 to 2030. Yet less than 40% of adults in the United States have been tested for HIV, finds the Behavioral Risk Factor Surveillance System, a system of health-related telephone surveys. A new phone survey targeted people 18 years or older in 50 local jurisdictions where most new HIV cases were diagnosed in 2016 and 2017, as well as in rural areas of seven states with disproportionate rates of HIV. Overall, HIV screening was suboptimal in the tested areas. More people were tested for HIV in jurisdictions with the most new HIV cases than in the seven states with disproportionate rural HIV rates. Novel HIV screening strategies are needed to reach people who have never been tested for HIV.