For the 2026-27 school year, there is 1 public high school serving 397 students in Alton, NH.
The top-ranked public high school in Alton, NH is Prospect Mountain High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Alton, NH public high school have an average math proficiency score of 27% (versus the New Hampshire public high school average of 35%), and reading proficiency score of 62% (versus the 62% statewide average). High schools in Alton have an average ranking of 6/10, which is in the top 50% of New Hampshire public high schools.
Alton, NH public high school have a Graduation Rate of 92%, which is more than the New Hampshire average of 88%.
The school with highest graduation rate is Prospect Mountain High School, with 90-94% graduation rate. Read more about public school graduation rate statistics in New Hampshire or national school graduation rate statistics.
Minority enrollment is 7% of the student body (majority Hispanic), which is less than the New Hampshire public high school average of 18% (majority Hispanic).
Best Public High Schools in Alton, NH (2026-27)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Prospect Mountain High School
(Math: 25-29% | Reading: 60-64%)
Rank:
Rank:
6/
Top 50%10
242 Suncook Valley Rd.
Alton, NH 03809
(603) 875-3800
Alton, NH 03809
(603) 875-3800
Gr: 9-13 | 397 students Student-teacher ratio: 11:1 Minority enrollment: 7%
Alton, New Hampshire Public Schools (Closed)
School
Location
Quick Facts
School St Po Box 910
Alton, NH 03809
(603) 875-7500
Alton, NH 03809
(603) 875-7500
Gr: 9-12 | 204 students Minority enrollment: 1%
Frequently Asked Questions
What are the top-ranked public high schools in Alton, NH?
The top-ranked public high schools in Alton, NH include Prospect Mountain High School.
How many public high schools are located in Alton?
1 public high schools are located in Alton.
What is the racial composition of students in Alton?
Alton public high schools minority enrollment is 7% of the student body (majority Hispanic), which is less than the New Hampshire public high schools average of 18% (majority Hispanic).
Recent Articles
What Makes an Elementary School Feel Supportive?
Discover what makes one elementary school more supportive than another, from teacher relationships and family communication to classroom attention, belonging, student services, leadership, routines, and responsive academic support systems.
Second School Tour: Questions Parents Forget to Ask
A second school tour can reveal what families miss initially. Learn which questions to ask about teachers, support, schedules, safety, communication, programs, and everyday student life before enrolling.
Attendance Policies Are Changing: Parent Guide 2026
Attendance policies are changing across public schools. Learn what parents should examine about absences, tardiness, interventions, flexibility, communication, and student support before choosing a school for their child today.