…The third map shows the cost of living difference based just on housing or rents. The quick takeaway is that differences in living costs across metros seem to be driven almost entirely by the huge differences in housing costs. The range is enormous. The prices in places with the highest overall living costs are roughly 20 percent above the national average, and the prices in places with the highest costs for just goods and services are roughly 10 percent above the national average. But when it comes to housing costs, the priciest metros are a whopping 50 to 70 percent more expensive than the national average….