According to data mapped by Flowing Data, about a third of the United States is within 25 miles of a casino.
The map was created with about 7,500 samples from Google Places API, which Nathan Yau noted, means the definition of casino was determined by Google’s classification. That’s why it shows a casino in Utah, where all gambling is illegal (it’s a poker party store, Yau said). The percentage of the U.S. population within a 25-mile radius of a casino is likely even higher than the geographical proximity because many of these locations are near major population centers.
There are 39 states with some form of legalized gambling, according to the American Gaming Association. Of those states, 28 have Indian casinos, 23 have commercial casinos, and 14 have racetrack casinos. In 2012, commercial casinos brought in $37.34 billion across the country, but in seven states — Delaware, Indiana, Michigan, Missouri, New Jersey, New Mexico, and West Virginia, revenue decreased from 2011 to 2012.
For more information, see Flowing Data’s interactive map here.