The average cost of center-based daycare in the United States is $11,666 per year ($972 a month), but prices range from $3,582 to $18,773 a year ($300 to $1,564 monthly), according to the National Association of Child Care Resource & Referral Agencies (NACCRRA).osts for daycare for preschool-age children are generally lower, averaging $8,800 a year ($733 a month). Depending on where you live, you'll pay anywhere from $4,460 to $13,185 a year ($371 to $1,100 a month).