Does it seem crowded in here?

Big story on the front page of today's Washington Post tries to make sense of the Census Bureau stat that the urban sprawl around Los Angeles is the most densely populated region in the country. Blaine Harden datelines the piece from Signal Hill, where all of the available land is being built on for homes, adding to the density calculation. The three densest regions in the country are in California (L.A.-Long Beach-Orange County, then San Francisco-Oakland and San Jose), while New York City-Newark ranks fourth measured by the number of people per square mile.