The American school system is structured differently from most countries. There is no single national curriculum here: requirements are set by each state, and within a state, schools may operate on different models. For international students, choosing a school means choosing not just a ranking, but a system they'll be joining.
First, the practical side. International students may study at an American public school for no more than one year. If a longer stay is needed, private schools are the option: day schools, where students come only for classes, and boarding schools, where they live on campus. Families from abroad more often choose boarding schools — they provide accommodation, meals, and organised activities.
Now, how the system is structured. Education is divided into three stages. Elementary school is kindergarten and grades one through five, where almost all subjects are taught by a single teacher. Middle school is grades six through eight: subject-specific teachers appear, along with the first elective courses. High school is grades nine through twelve. Here, students accumulate credits by choosing courses based on their interests and level of difficulty. The required minimum — English, mathematics, science, history — is supplemented by subjects the student chooses based on where they plan to apply.
This flexibility is what attracts international students. Students are not tied to a fixed set of subjects for the entire course. They can try economics, journalism, engineering, or psychology before deciding on a direction. For those ready for an above-average workload, Honors and Advanced Placement courses are available, and at some schools — the International Baccalaureate programme, whose diploma is recognised by universities in English-speaking countries.
The cost of a private school depends on reputation, location, and ranking. According to S&P Global Ratings for 2026, the average annual fee at private day schools is around $49,745, and at boarding schools — $75,466. This amount includes tuition, accommodation, and meals, but not always textbooks, insurance, additional trips, and individual lessons. Schools with strong reputations can cost more: a year at Phillips Exeter Academy on full boarding is $71,797, and at Phillips Academy Andover — $79,800.
Next — ten schools worth knowing. I'll start with two whose names are familiar. Phillips Exeter Academy was founded in 1781. Its distinctive feature is the Harkness method: classes take place around an oval table, where twelve students and the teacher hold a discussion rather than listen to a lecture. This approach is applied in all subjects and requires active participation from the student. Alumni include Nobel laureates, politicians, and entrepreneurs. Phillips Academy Andover is one of the oldest schools in the country, founded in 1778. It consistently ranks among the leading American boarding schools by average SAT scores, number of advanced courses, and admission selectivity. Graduates go on to Yale, Columbia, Princeton, and alumni include two US presidents and a co-founder of Facebook.
Some schools follow progressive pedagogy. The Putney School in Vermont has been operating since 1935. It has 220 students, and it is known for its attention to innovation in the learning process. In addition to the academic programme, creativity, sports, and student participation in school governance are highly valued. Tuition for the 2026–27 academic year is $82,600 for boarding.
Small schools are a separate category. Church Farm School in Pennsylvania is a small school for boys in grades nine through twelve. There are fewer than 200 students in total, with an average class size of around 10. The programme includes advanced and honours courses, and every student is issued a MacBook. Many teachers have worked here for more than fifteen years, and most hold advanced degrees. Asheville School in North Carolina has been operating since 1900 and is located in the Blue Ridge Mountains. It is also a small school: around 260–300 students, about 75% of whom live on campus. It is known for academic rigour and a strong outdoor education programme. Annual boarding tuition for 2026–27 is $78,950.
Some schools are fully boarding. Episcopal High School in Alexandria, Virginia, is a fully boarding school where students from different states and countries live. The average class size is 11, and 62 advanced courses are offered. The campus is ten minutes from Washington, providing access to internships and the capital's cultural resources. Annual boarding tuition in 2026 is $77,000. St. Paul's School in Concord, New Hampshire, was founded in 1856 and is one of the few schools where all students live on campus. It is affiliated with the Episcopal Church but accepts students of different faiths. The campus occupies 2,000 acres, and 540 students attend the school. Annual boarding tuition is around $68,353.
A few more are worth mentioning. Shattuck-St. Mary's School in Minnesota was founded in 1858. It is a school with two campuses and around 400 students. The student-to-teacher ratio is 9:1. From 2026, all academic classes have been moved to one campus, and the St. Mary's Hall building is used as a dormitory. Annual fee is around $55,000. Saint Andrew's School in Florida is the only fully boarding programme in Palm Beach County. The school was founded in 1961 and accepts students from pre-K through twelfth grade, but boarding is available only in the upper grades. The campus occupies 81 acres, and annual boarding tuition is $76,040. The Thacher School in California, Ventura County, is one of the most unusual schools on the list. Founded in 1889, it is located 85 miles from Los Angeles and is known for its equestrian programme: students care for horses and participate in hikes in the surrounding mountains. There are around 255 students. Annual boarding tuition is $77,880.
What you need for admission. A private boarding school requires transcripts for the last two to three years with English translations, recommendations from mathematics and English teachers, and essays from the student and parents. Most schools require SSAT or ISEE results — standardised tests in mathematics, reading, and writing. For international students, a language exam is mandatory: TOEFL iBT usually 80–100 for strong schools, IELTS — 6.5–7.0. Some schools accept the Duolingo English Test.
A separate stage is the interview. It may take place online or during a campus visit. Schools look not only at grades but also at how ready the student is for boarding school life: whether they can follow the routine, participate in community life, and cope with the workload without constant family supervision.
To obtain an F-1 visa, you must confirm financial capacity. The school issues the I-20 form after enrolment and deposit payment. The embassy requests bank statements or an affidavit of support confirming that the family has funds for at least the first year of study.