No. households: 7,103 Pct. change in no. households since 2000: 3.23 Average household income: $256,476 Average household net worth: $1,563,480
Adjacent to the No. 23 richest Zip Code, 94024, and roughly 40 miles south of San Francisco, this area includes Los Altos, Los Altos Hills, and Palo Alto Hills. Downtown Los Altos, a six-block triangle, has more than 150 shops and also hosts farmers markets and movie nights, among other community activities, says the Los Altos Village Assn. Many luxury homes in the Los Altos Hills overlook rolling hills and the South and East Bay communities. Elite couples and singles are the predominant population. Los Altos has the highest household net worth of all the Zip codes in this ranking.