The Sanford School – One of the best private schools in Delaware, Sanford School is a co-educational, college preparatory day school for grades Prekindergarten–12. Nestled on a striking, 100-acre campus in Hockessin, Delaware, Sanford & Ellen Sawin founded Sanford School in 1930 as an innovative school where No Talent Lies Latent. This continues to be our motto today.