Square 1: LA County

 POPULATION (1)

World 7,044,872,282

U.S. 314,553,796

California 37,691,912

Los Angeles County 9,889,056 (.1% of world population)
retrieved: 00:31 UTC (EST+5) Oct 11, 2012 

Los Angeles County QuickFacts from the US Census Bureau

COUNTY VIEW

Major Cities View (google map LA COUNTY)

interesting tidbits from wikipedia

~over a quarter of Californians live in LACounty
~Most # of millionaires as well as the most # of people who are homeless

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Resources:
1) http://www.census.gov/main/www/popclock.html
2) http://en.wikipedia.org/wiki/Los_Angeles_County,_California