Here are a couple of counties I am considering, with brief population stats. More business relevant statistics to come...
Los Angeles County:
Population, 2008 estimate 9,862,049 OF TOTAL, 36,756,666 - 25.8% are under 18
Mendocino County:
Population, 2008 estimate 86,221 OF TOTAL, 36,756,666 – 22.1% under 18
Orange County:
Population, 2008 estimate 3,010,759 OF TOTAL, 36,756,666 – 25.4% under 18
San Diego County:
Population, 2008 estimate 3,001,072 OF TOTAL, 36,756,666 – 24.8% under 18
San Luis Obispo County:
Population, 2008 estimate 265,297 OF TOTAL, 36,756,666 – 18.6% under 18
San Mateo County:
Population, 2008 estimate 712,690 OF TOTAL, 36,756,666 – 22.5% under 18
Santa Barbara County:
Population, 2008 estimate 405,396 OF TOTAL, 36,756,666 – 23.6% under 18
Santa Cruz County:
Population, 2008 estimate 253,137 OF TOTAL, 36,756,666 – 21.5% under 18
Ventura County:
Population, 2008 estimate 797,740 OF TOTAL, 36,756,666 – 25.9% under 18
I included the 18 and under bracket because this is a decent chunk of our target audience and some counties have a lot more young hoodlums than others.
*data courtesy of US Census Bureau 2008