The TV news reports that 500,000 people are heading toward Nebraska, to experience the 2017 total eclipse of the sun, along a corridor from the northwest corner of the state to the southeast. It’s nearly five hundred miles of diagonal space to add all those extra folks.
Nebraska has only 1,826,341 people, plus a few more on really busy days, like during college world series games in June. https://eclipse2017.nasa.gov/eclipse-who-what-where-when-and-how
This is a rare event “This is the first time a total solar eclipse has gone from one American coast to the other since 1918. It will also be the first time in U.S. history that a total solar eclipse will make landfall exclusively on U.S. soil, meaning it will not be visible from any other country. (This technically happened in 1257 — but, of course, the United States wasn’t a country way back then.) from Space.com