County Health Rankings & Roadmaps, A Healthier Nation, County by County

The County Health Rankings models and measures

Our Approach

The County Health Rankings model of population health

What can I do?

Action Center

Explore guides and tools for improving health

What can I learn from others?


Key findings from the last three years of County Health Rankings and other national reports.

County-by-County Blog

Project updates, commentaries, events and news about health across the nation from the County Health Rankings & Roadmaps team.

Health Outcomes

Health outcomes in the County Health Rankings represent how healthy a county is. We measure two types of health outcomes: how long people live (length of life) and how healthy people feel while alive (quality of life).



Length of Life (Mortality)

We examine mortality (or death) data to find out how long people live. More specifically, we measure what are known as premature deaths (deaths before age 75).

Quality of Life (Morbidity)

Quality of life refers to how healthy people feel while alive. Specifically, we report on the measures of their health-related quality of life (their overall health, physical health, and mental health) and we also look at birth outcomes (in this case, babies born with a low birthweight).

What Works for Health

Learn about policies and programs that can improve health in your community.