I thinik Jean-Paul Sartre, the French philosopher, was right when he said : ''Hell... it's the others.''
If I wasn't in a pretty nice spot already (Yukon, Canada has something like 0.2 people per sq. mi.) I'd move to a low density area like Alaska with 1.1 per sq. mi.
Five times more crowded is Wyoming. Montana, N. or S. Dakota. are next.
http://en.wikipedia.org/wiki/List_of_U.S._states_by_population_density