The start of 2015 meant rising salaries for minimum-wage workers in 20 states and the District of Columbia. Workers in New York got their raise a day early, when the state increased the minimum wage by 75 cents on the final day of 2014. That’s over 3 million workers in the U.S. who will benefit from a pay raise this year, according to the Economic Policy Institute. But how significant are these wage increases when compared with the diverse cost of living across the country?