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No. 34 Richest Zip Code: 91108, San Marino, Calif.

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Where the 1 Percent Lives No. 50 Richest Zip Code: 94507, Alamo, Calif. No. 49 Richest Zip Code: 10538, Larchmont, N.Y. No. 48 Richest Zip Code: 22039, Fairfax Station, Va. No. 47 Richest Zip Code: 20815, Chevy Chase, Md. No. 46 Richest Zip Code: 07021, Essex Fells, N.J. No. 45 Richest Zip Code: 11576, Roslyn, N.Y. No. 44 Richest Zip Code: 10580, Rye, N.Y. No. 43 Richest Zip Code: 10576, Pound Ridge, N.Y. No. 42 Richest Zip Code: 11765, Mill Neck, N.Y. No. 41 Richest Zip Code: 94506, Danville, Calif. No. 40 Richest Zip Code: 33149, Key Biscayne, Fla. No. 39 Richest Zip Code: 10504, Armonk, N.Y. No. 38 Richest Zip Code: 07417, Franklin Lakes, N.J. No. 38 Richest Zip Code: 07417, Franklin Lakes, N.J. No. 37 Richest Zip Code: 10514, Chappaqua, N.Y. No. 36 Richest Zip Code: 06820, Darien, Conn. No. 35 Richest Zip Code: 10583, Scarsdale, N.Y. No. 34 Richest Zip Code: 91108, San Marino, Calif. No. 33 Richest Zip Code: 95030, Los Gatos, Calif. No. 32 Richest Zip Code: 94304, Palo Alto, Calif. No. 31 Richest Zip Code: 90274, Palos Verdes Peninsula, Calif. No. 30 Richest Zip Code: 19085, Villanova, Pa. No. 29 Richest Zip Code: 20854, Potomac, Md. No. 28 Richest Zip Code: 11797, Woodbury, N.Y. No. 27 Richest Zip Code: 06878, Riverside, Conn. No. 26 Richest Zip Code: 06883, Weston, Conn. No. 25 Richest Zip Code: 22102, McLean, Va. No. 24 Richest Zip Code: 02030, Dover, Mass. No. 23 Richest Zip Code: 94024, Los Altos, Calif. No. 22 Richest Zip Code: 10506, Bedford, N.Y. No. 21 Richest Zip Code: 07458, Saddle River, N.J. No. 20 Richest Zip Code: 30327, Atlanta, Ga. No. 19 Richest Zip Code: 06840, New Canaan, Conn. No. 18 Richest Zip Code: 95070, Saratoga, Calif. No. 17 Richest Zip Code: 90272, Pacific Palisades, Calif. No. 16 Richest Zip Code: 02493, Weston, Mass. No. 15 Richest Zip Code: 11030, Manhasset, N.Y. No. 14 Richest Zip Code: 60093, Winnetka, Ill. No. 13 Richest Zip Code: 60045, Lake Forest, Ill. No. 12 Richest Zip Code: 22066, Great Falls, Va. No. 11 Richest Zip Code: 92657, Newport Coast, Calif. No. 10 Richest Zip Code: 90402, Santa Monica, Calif. No. 9 Richest Zip Code: 94022, Los Altos, Calif. No. 8 Richest Zip Code: 10577, Purchase, N.Y. No. 7 Richest Zip Code: 19035, Gladwyne, Pa. No. 6 Richest Zip Code: 90077, Los Angeles, Calif. No. 5 Richest Zip Code: 94028, Portola Valley, Calif. No. 4 Richest Zip Code: 90210, Beverly Hills, Calif. No. 3 Richest Zip Code: 60043, Kenilworth, Ill. No. 2 Richest Zip Code: 11568, Old Westbury, N.Y. No. 1 Richest Zip Code: 33480, Palm Beach, Fla.

No. 34 Richest Zip Code: 91108, San Marino, Calif.

No. households: 4,403
Pct. change in no. households since 2000: 1.06
Average household income: $227,241
Average household net worth: $1,459,899

A suburb in the greater Los Angeles area, San Marino has expensive homes and green parks. It is also home to the Huntington Library Art Gallery & Botanical Gardens. The predominant cluster is elite couples and singles.

Photography by: Trinette Reed/Getty Images