U.S. federal policy puts states in charge of their own coastal planning. This planning includes policies for sea level rise preparedness, but sea level rise is not the only source of coastal flood risk. When multiple types of risk come together, they are called combined, or compound, hazards. While most states plan for sea level rise, they do not necessarily plan for compound hazards, especially those from sea level rise and river flooding. Many states use map-based tools to communicate risk to communities and decision makers. We look at two states, California and Florida, whose tools incorporate compound hazards, and we look at the policy reasons why they do so. We also look at how these tools are used to create policy. Each of these tools was developed through relationship-building and community input, and we study how this process might be used more broadly so that NASA data may benefit more communities and more states may plan for compound sea level rise and river flood hazards.