This report describes the landscape of online health and community indicators platforms to inform strategic planning by the Robert Wood Johnson Foundation–supported County Health Rankings and Roadmaps (CHR&R) program. These online platforms have increased because of easier access to raw data and wider interest in making this data usable for different audiences. The report documents the characteristics of 15 platforms, reports on the future of online platforms from the perspective of five website managers, and recommends ways that CHR&R and the foundation could collaborate with other organizations to advance community health improvement.