The Peddie School is a college preparatory school in Hightstown, in Mercer County, New Jersey, United States. It is a non-denominational, coeducational boarding school located on a campus, and serves students in the ninth through twelfth grades, plus a small post-graduate class. The school has been accredited by the Middle States Association of Colleges and Schools Commission on Elementary and Secondary Schools since 1928. In its 2015 rankings, Business Insider ranked the school's tuition as the 18th most expensive private high school tuition in the United States, with tuition and fees of $44,800. The site ranked Peddie 13th on its 2015 list of the Most Elite Boarding Schools In The US, with rankings based on the size of each school's endowment, average SAT scores and selectivity. The school is also extremely selective, with an acceptance rate of 22%. As of the 2019–20 school year, the school had an enrollment of 544 students and 75.8 classroom teachers (on an FTE basis), for a student–teacher ratio of 7.2:1. The school's student body was 41.0% (223) White, 34.9% (190) Asian, 11.2% (61) Black, 7.4% (40) two or more races and 5.5% (30) Hispanic. Peddie had 62% of students in residence. The student body represented 26 states as well as 29 foreign countries. Peddie had an average class size of 12. Peter Quinn succeeded John Green as head of school in 2013. History What is now The Peddie School was founded in 1864 as the Hightstown Female Seminary, an American Baptist school. Later that year, boys were admitted and it changed its name for the first time, to New Jersey Classical and Scientific Institute. In 1872, it became the Peddie Institute in honor of philanthropist and politician Thomas B. Peddie, who gave the school $25,000 (equivalent to $ in ). In 1923, the school was formally renamed The Peddie School. Peddie remained coeducational until 1908, when, for social and economic reasons, it decided to begin admitting only boys. This decision was reversed in 1970 when girls began to be admitted again. The following year, Peddie's first female African-American student enrolled in the fall term. Beginning in the 1930s, Peddie began to attract students from other countries including China and Central America. As of 2022, 21% of Peddie's students identified as international, with top countries including China, South Korea, and Canada. In 1983, Walter Annenberg, class of 1927, made a gift of $12 million (equivalent