With 268,138 millionaire households, our county, the largest in the nation, holds 3% of the nation's millionaires, or 23% of the state's. And California, that's just for starters: 1. L.A. 2. Cook (Chicago) 3. Orange 4. Maricopa (Phoenix) 5. San Diego 6. Harris (Houston) 7. Nassau 8. Santa Clara 9. Palm Beach 10. King (Seattle) From CNN Money Photo by Kristo via Flickr......