Nature Preschools By the Numbers 585 The number of nature preschools in the United States, up from 250 in 2017. 10,000 The number of children served by nature preschools in the U.S. every year. 50 30% Percentage of time students spend outside during winter in all kindergartens in Norway. 83% Percentage of nature preschool students in the U.S. who identify as white. 70% Percentage of time students spend outside during the summer in all kindergartens in Norway (not just nature schools). sonsofnorway.com VIKING SEPTEMBER 2021 15 100 200 300 400 500 600 2021 2017 80% Percentage of nature schools in the U.S. maintaining waitlists. Approximate number of nature preschools in Washington and California, which boast the highest number of nature preschools in the country. Minnesota is a close third with 40. 3 /4 Fraction of the day spent outside at nature preschools in the U.S.http://www.sonsofnorway.com