Having kids can get incredibly expensive, and paying for quality childcare is one of those expenses. However, as you might expect, the cost of living varies greatly from state to state and in some cities in the United State, childcare is significantly more costly. Data that was released recently by the Economic Policy Institute looked at more than 600 metropolitan areas in the country and included in a variety of factors in the findings including transportation, food costs, childcare, and housing. The results showed that childcare is usually the most expensive line item for parents raising little ones. Here are the 10 most expensive metro areas for childcare in the United States.