Newport Coast, California, tops the list of the nation’s most expensive ZIP codes, with a median listing price of $11.8 million, according to a recent analysis by Realtor.com. By the standard 30% affordability rule, a homeowner would need to earn nearly $2.4 million annually to comfortably cover a median-priced home, resulting in a monthly mortgage payment of just over $59,000 on a 30-year loan at 6.25% with 20% down. In reality, purchases at this ultra-luxury tier are typically all-cash or financed with smaller loans.
Proximity to oceans, scarce luxury parcels, and a pool of deep-pocketed buyers define America’s priciest markets, the analysis found.
“Scarcity and irreplaceable land are at the top of the list,” said Anthony Smith, senior economist at Realtor.com.
“True oceanfront property exists along a narrow strip of coastline near major population centers. The supply of parcels with real waterfront access and unobstructed views is exceptionally limited, which naturally elevates pricing.”
These ZIP codes attract some of the wealthiest domestic and international buyers, including those in tech, finance, entertainment and business, according to Smith.
California dominates the top 10, with several ZIP codes featuring high-end enclaves such as Beverly Hills (90210, $7.995 million), Los Angeles/Bel-Air (90077, $8 million), Santa Barbara (93108, $6.05 million; 93110, $6 million), Malibu (90265, $6 million) and Rancho Santa Fe (92067, $5.95 million). These markets benefit from limited inventory and state regulations that tie property taxes to original purchase prices, incentivizing long-term ownership and further restricting supply.
Florida and New York also make the top 10. Fisher Island in Miami Beach (33109) ranks second, with a median listing of $11.65 million. Forty percent of households here earn more than $500,000 annually, yet buying a median-priced home using a 30-year mortgage would require an annual income of $2.32 million and monthly payments of $57,947. On the Hamptons’ South Fork, Bridgehampton (11932, $8.46 million) and Water Mill (11976, $6.12 million) draw wealthy New Yorkers for summer and weekend retreats, with median mortgage payments of $42,155 and $30,441, respectively, requiring annual incomes of $1.69 million and $1.22 million.
Across all top ZIP codes, even ultra-luxury buyers must navigate extreme prices. Beverly Hills and Los Angeles/Bel-Air both demand $1.59 million in annual income to cover median listings with standard financing, while Santa Barbara’s ZIPs and Malibu hover around $1.19–$1.2 million. Rancho Santa Fe rounds out the list, with a median listing of $5.95 million requiring $1.18 million in annual income.
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