According to 2015 census estimates, half of the US population lives in these 143 counties (ranked by population): Los Angeles County, California Cook County, Illinois Harris County, Texas Maricopa ...

America's obesity problem is growing — and it is disproportionately affecting one region of the country. The southern United ...

Across the US, county vaccination rates range from 0.1% to nearly 100%. The interactive map below shows the most and least vaccinated counties in each state. Hover over a county to see its ...