The Response Outreach Area Mapper (ROAM) application was developed to make it easier to identify hard-to-count areas and to provide a socioeconomic and demographic characteristic profile of these areas using American Community Survey (ACS) estimates available in the Planning Database. Learning about each hard-to-count area allows the U.S. Census Bureau to create a tailored communication and partnership campaign, and to plan for field resources including hiring staff with language skills. These and other efforts can improve response rates. Explore ROAM and its data with us.