The population is spread out among 3.8 million square miles across 50 states, yet nearly one-third of Americans live in just three states: California, Texas and New York.

There are 70 confirmed cases of the bird flu among humans in the U.S., as of Tuesday. The CDC said the current public health ...

The U.S. is in peak flu season, as the CDC releases a map of influenza activity across the country. See which states are at ...

Vermont and Wyoming are tied for the lowest populations in the US at just 600,000 residents each and reflecting the number of residents makes them so tiny, they can hardly be seen in the map.

When the US Federal Emergency Management Agency removed a map of future climate hazards from its website, researchers built their own version ...

As Texas continues to battle a growing measles outbreak largely among its unvaccinated children, six other states have ...

Red zones are predicted in New York, Kansas and Virginia as a winter storm continues to grow in the United States.

A string of fatal crashes has intensified pressure on regulators and lawmakers to ensure the safety of American aviation.