San Francisco has highest cost of living while St Louis is most affordable city
The metro area of San Francisco has the highest cost of living in the United States and requires a post-tax salary of $84,000 to live comfortably - compared to a low of $57,000 in St Louis.
A study of the country's 25 largest metro areas shows the top ten priciest places to live are on the east or west coast.
The area with the lowest cost of living is Greater St.
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