For the 2026 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)
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%
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).
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