The 10 Most Expensive Cities to Live in the U.S.

5. Portola Valley, California

Portola Valley is often seen as the more exclusive sibling to Palo Alto. While Palo Alto has been the birthplace of many tech geniuses and their companies, earning it one of the highest living costs in the country (according to Best Places), Portola Valley manages an even higher cost of living, despite not having the same tech fame as Palo Alto. In this small designated place, the average home is valued at $4.1 million, and residents spend an average of $393,471 each year to cover their living expenses (as per Go Banking Rates).