Prospect Mountain High School is a public high school located in Alton, New Hampshire, United States, and is attended by students from Alton and Barnstead. It is in the Prospect Mountain High School Joint Maintenance Agreement District. It has been in operation since 2004.
Serving 397 students in grades 9-13, Prospect Mountain High School ranks in the top 50% of all schools in New Hampshire for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 25-29% (which is lower than the New Hampshire state average of 42%). The percentage of students achieving proficiency in reading/language arts is 60-64% (which is higher than the New Hampshire state average of 51%).
The student-teacher ratio of 11:1 is equal to the New Hampshire state level of 11:1.
Minority enrollment is 7% of the student body (majority Hispanic), which is lower than the New Hampshire state average of 18% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-13
- Enrollment: 397 students
- Student-Teacher Ratio: 11:1
- Minority Enrollment: 7%
- Graduation Rate: 90-94% (Top 20% in NH)
- Overall Testing Rank: Top 50%
- Math Proficiency: 25-29% (Btm 50%)
- Reading Proficiency: 60-64% (Top 30%)
- Science Proficiency: 35-39% (Top 50%)
- Source: National Center for Education Statistics (NCES), NH Dept. of Education
Top Rankings
Prospect Mountain High School ranks among the top 20% of public schools in New Hampshire for:
Category
Attribute
Graduation Rate
School Overview
Prospect Mountain High School's student population of 397 students has declined by 9% over five school years.
The teacher population of 36 teachers has declined by 14% over five school years.
Grades Offered
Grades 9-13
(No virtual instruction)
(No virtual instruction)
Total Students
397 students
Total Classroom Teachers
36 teachers
Year Founded
2004
Campus Size
50 acres
School Motto
'Truth and Honor'
School Rankings
Prospect Mountain High School ranks within the top 50% of all 455 schools in New Hampshire (based off of combined math and reading proficiency testing data).
The diversity score of Prospect Mountain High School is 0.13, which is less than the diversity score at state average of 0.33. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#221 out of 455 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
25-29%
42%
Reading/Language Arts Test Scores (% Proficient)
60-64%
51%
Science Test Scores (% Proficient)
35-39%
36%
Student-Teacher Ratio
11:1
11:1
American Indian
n/a
n/a
Asian
1%
3%
Hispanic
3%
8%
Black
1%
2%
White
93%
82%
Hawaiian
n/a
n/a
Two or more races
2%
5%
All Ethnic Groups
Graduation Rate
90-94%
88%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
19%
20%
Eligible for Reduced Lunch
3%
4%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), NH Dept. of Education
School Notes
- School Mascot: Wild Boars
Frequently Asked Questions
What is Prospect Mountain High School's ranking?
Prospect Mountain High School is ranked #221 out of 455 schools, which ranks it among the top 50% of public schools in New Hampshire.
What percent of students have achieved state testing proficiency in math and reading?
25-29% of students have achieved math proficiency (compared to the 42% NH state average), while 60-64% of students have achieved reading proficiency (compared to the 51% NH state average).
What is the graduation rate of Prospect Mountain High School?
The graduation rate of Prospect Mountain High School is 90-94%, which is higher than the New Hampshire state average of 88%.
How many students attend Prospect Mountain High School?
397 students attend Prospect Mountain High School.
What is the racial composition of the student body?
93% of Prospect Mountain High School students are White, 3% of students are Hispanic, 2% of students are Two or more races, 1% of students are Asian, and 1% of students are Black.
What is the student-teacher ratio of Prospect Mountain High School?
Prospect Mountain High School has a student ration of 11:1, which is equal to the New Hampshire state average of 11:1.
What grades does Prospect Mountain High School offer ?
Prospect Mountain High School offers enrollment in grades 9-13 (No virtual instruction).
What school district is Prospect Mountain High School part of?
Prospect Mountain High School is part of Prospect Mountain Jma School District.
School Reviews
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