Length of the average summer vacation in U.S. schools: 9-11 weeks
Length of the average American vacation for working adults (in 1999): 3.8 days
Percentage of six-to-twelve-year-old children who regularly spend time in summer programs: 24%
Percentage of children who are in summer school: 6%
Proportion of children who are regularly in the care of relatives during the summer: 1/3
Percentage of children who are regularly in family childcare during the summer: 6%
Percentage of children who are regularly in the care of a nanny or baby-sitter during the summer: 8%
Percentage of children under 13 who are regularly without adult supervision during the summer: 11%
Percentage of higher-income children who are regularly without adult supervision during the summer: 15%
Number of day and resident summer camps in the U.S.: 12,000
Percentage of summer camps that are sleep-away camps: 60%
Number of children that attend camp each year: 6 million
Average weekly fee for sleep-away camps: $325-$780
For day camps: $100-$275
Percentage of camps that offer financial assistance to children in need: 90%
Percentage of children who visit a library at some point during their summer after kindergarten: 64.8%
A state national park: 55.1%
A museum: 38.9%
A zoo, an aquarium or a petting farm: 61.2%
A historic site: 39.9%
A vacation spot: 75.2%