Newport Beach claimed the title of America's most expensive city for 2026, with all six of its residential zip codes landing in the nation's top 100.

The annual ranking from real estate data firm PropertyShark, released Oct. 13, placed two Newport Beach zips in the national top 10. The Newport Coast master-planned community (92657) ranked No. 5 with a $6.1 million median sale price. The lower half of Balboa Island (92661) followed at No. 6 with a $5.77 million median.

Four of the six zips set records.

Newport Coast's median rose nearly 20% year over year to a new high, according to PropertyShark. The zip code has posted eight consecutive years of increases, adding a cumulative $3.55 million to its median sale price over that stretch.

Balboa Island's lower half also set a record, though by a slimmer margin. Its median climbed just $49,000 from the prior year. The upper half of Balboa Island (92662) saw prices contract and slipped to No. 22 on the list at $4.04 million. That drop meant Newport Beach placed two zips in the top 10, down from three in each of the prior two years.

The city's remaining ranked zips were Corona del Mar (92625) at No. 19 with a $4.255 million median and 92660 at No. 35 with a $3.4 million median.

Those numbers land against a backdrop of big-ticket sales across Newport Coast. A speakeasy-themed estate with underwater pool views sold for $30 million in a deal that closed March 27, the Orange County Register reported. A Crystal Cove Estate Collection property sold off-market for $43.56 million in January, the Register reported in April, calling it the county's largest home sale at that time.

Nationally, Atherton in San Mateo County topped the list at $10.725 million, the first time any U.S. zip code has reached an eight-figure median. Sagaponack, New York, took No. 2 at $7.35 million, and Florida's Fisher Island placed third at $7.217 million.

California supplied 57% of the 100 most expensive zip codes, though PropertyShark noted that share was the state's lowest in more than a decade, well below its 73% peak in 2019. Orange County picked up ground even as L.A. County and the Bay Area lost slots, placing 12 zips in the ranking.