In the most expensive state—Massachusettes—the average annual cost of full-time care for an infant in center-based care, was US$20,880 by August 2020, representing 69.1% of income. And in most states, the cost represents over 30% of "median income for single mothers". There are different rates based on age—infants, toddlers, preschoolers and school age, with infants in child care centers costing from US$1,100 to US$2,714 a month in 2019 for infants to $300 - $1,465 for school age children in Westchester County, New York, for example.