Don't county-level rankings hide disparities that may exist within counties?

In part, the County Health Rankings aim to show that where you live matters to your health and that disparities exist within every state. But disparities exist within most counties as well. We encourage communities to use the Rankings as a starting point to delve more deeply into data that may highlight disparities within counties. Communities can do this by initiating a community health assessment or using the Rankings to draw attention to thorough assessments that have already been done. We have provided information in our Data Guide for communities that need help getting started.