Outside of sf the most expensive bay area zip code was redwood citys 94063 which repeated its 25th place performance from last year now averaging 4129 menlo parks 94025 region saw the bay. 1 94105 is the priciest zip code in san francisco covering the south beach and yerba buena neighborhoods the zip code fetched a median price of 1209 per square foot through august 2017 this particular area has definitely earned the first spot boasting the only zip code with a price tag over 1200 per square foot. List of countrys most expensive zip codes reveals an out of control housing crisis 13 of them are in san francisco across california 91 zip codes appeared on the list. San francisco has the highest concentration of extremely pricy zip codes with 11 on the top 100 list the priciest pocket is 94123 which encompasses the marina district and cow hollow and had a