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 ...

Schools in several states announced closures ahead of a winter storm that is expected to bring snow, ice and sleet.

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 ...