More Useless Trivia: There are 9 states west of Wyoming, including Alaska and Hawaii.
Even More Useless Trivia: The combined population of those 9 states is 55,568,165 per the 2000 U.S. census. The population of the entire U.S. was recorded at 281,421,906.

Oregon holds more trailer parks than under 20% of the states, and in an area with less than 20% of the population. Pretty impressive.