Daycare is really expensive. That’s the main message coming out of the Parents and the High Cost of Child Care: 2014 Report from Child Care Aware. For a family with an infant and a 4-year-old, the cost of sending the kids to daycare can cost thousands more than the cost of hosting an au pair. Take a look at the top 10 most expensive states for childcare below. Keep in mind that daycare prices can be significantly higher than these averages if you live in a metro area.