Another in an accidental series of “Basic facts about U.S. urban areas presently in the news”. This week, West Coast Edition: like other very large American cities, Los Angeles is very big. There are a lot of Angelenos. In fact this is just Los Angeles county, which is both larger than the City of Los Angeles proper, but smaller than the Los Angeles-Long Beach-Anaheim Metropolitan Statistical Area. L.A. County has about 9.66 million residents; the City of Los Angeles about 3.8 million res...