B
Good
70/100

Prospect Mountain High School

📚 09 – 13 🏫 High School
📍 242 Suncook Valley Rd., Alton, NH 03809
Overall
B
70/100 · the blend of everything below
Achievement
C+
Reading 62% · Math 32% proficient · 48th percentile in New Hampshire
Graduation
B+
92% earn a regular diploma in 4 years
Resources
B+
Class size, funding, school size and type

Each score is graded separately against New Hampshire schools. A school can be strong at moving students forward (growth) without having the highest test scores, or the reverse. How we score schools

70
Repit Score
out of 100
405
Students
enrolled
11.4:1
Student:Teacher
ratio
N/A
Per Student
spending

What Goes Into This Rating

FactorWeightScoreBasis
📚 Academics (reading & math)55%48/100reading 56th percentile, math 41st percentile among New Hampshire high schools (2020–21 state tests)
🎓 Graduation (4-year, diploma only)25%75/10092% graduate on time with a regular diploma
🏫 Resources (class size, funding, size, type)20%82/100Inputs from NCES school and district data

Students served: 21% students eligible for free or reduced-price lunch. Compared with New Hampshire schools serving a similar share of low-income students, this school’s reading and math results are −6 points worse than expected. (Context only; not part of the score.)

The overall Repit Score ranks this blend against every rated school in New Hampshire. Schools are compared within their state because each state sets its own tests and proficiency bar. How we rate schools

Test Scores & Graduation

📖 Reading proficiency62% (+11 pts vs. state avg 51%)
Students scoring proficient on the state test, 2020–21
➗ Math proficiency32% (−6 pts vs. state avg 38%)
Students scoring proficient on the state test, 2020–21
🎓 Graduation rate92% (+7 pts vs. state avg 85%)
Four-year adjusted cohort graduation rate, class of 2020

Source: U.S. Department of Education EDFacts via the Urban Institute Education Data Portal. Federal reporting rounds small schools to ranges; we show the midpoint. Proficiency standards differ by state, so compare schools within the same state.

How Student Groups Do Here

Share of each group of students scoring proficient on the New Hampshire state test (2020–21), compared with the same group of students across the state. Differences between groups are shown as reported; they reflect many factors inside and outside school.

StudentsReadingMathvs. same group statewideRank in state for this group
White62%27%reading -3 pts, math -16 pts35th percentile (list)

Source: U.S. Department of Education EDFacts via the Urban Institute. Groups with fewer than 20 tested students are not shown. Results are achievement (proficiency), not growth; growth by group is not published for individual schools.

School Information

Address 242 Suncook Valley Rd.
City Alton
ZIP Code 03809
District 3300049
NCES School ID 330004900619
Data Year 2024-25

Community Context for 03809

Understanding the community around Prospect Mountain High School helps evaluate the school environment and neighborhood.

💰 Income & Economy

Median Household Income $86,116
Per Capita Income $39,480
Poverty Rate 4.4%
Households Earning $100K+ 45.4%

🎓 Education Level

Bachelor's Degree or Higher 24.4%
High School or Higher 94.1%

🏠 Housing

Median Home Value $279,500
Median Rent $577
Owner-Occupied 89.0%
Renter-Occupied 11.0%
View full data for ZIP 03809 →

Thinking about moving into this school’s area? See what homes and rents actually cost in ZIP 03809 — values, rent, and how it compares to nearby ZIPs. Free, no signup. See 03809 housing costs →

Student Demographics

Enrollment and demographic breakdown for Prospect Mountain High School.

👫 Gender Distribution

Male 50.6%
Female 49.4%

🌎 Race & Ethnicity

White 93.8%
Hispanic/Latino 3.2%
Two or More Races 2.0%
Black 0.5%
Asian 0.3%
American Indian 0.3%

📋 Enrollment Summary

Total Enrollment 405
Teachers (FTE) 35.6
Student:Teacher Ratio 11.4:1

Frequently Asked Questions

What is the Repit School Score for Prospect Mountain High School?
Prospect Mountain High School has a Repit School Score of 70 out of 100, earning a grade of B. The score is based mainly on reading and math proficiency compared with other schools in the state, plus the on-time graduation rate, with class size and funding counting for a smaller share.
How many students attend Prospect Mountain High School?
Prospect Mountain High School has 405 students enrolled for the 2024-25 school year. The student-to-teacher ratio is 11.4:1.
What grades does Prospect Mountain High School serve?
Prospect Mountain High School serves grades 09 – 13 and is classified as a High School. This is a public school.
How much funding does Prospect Mountain High School receive per student?
Prospect Mountain High School receives funding data not available in per-pupil spending from its district. This is below the national average.
🏠 Rental Market Around Prospect Mountain High School in 03809 ▼
Avg Home Value
$543,881
Avg Monthly Rent
$1,593
1-Year Change
+7.7%
% Renters
11.0%

Other Schools in 03809

View all schools and real estate data for 03809 →

About Repit School Scores

Parents choosing a school deserve to see what it actually delivers. Since October 2026 the Repit School Score is built mainly on results:

  • Academics (largest share) — the share of students scoring proficient in reading and math on the state test, ranked against schools of the same level in the same state.
  • Graduation (high schools) — the four-year adjusted cohort graduation rate. Only regular diplomas count; GEDs and certificates of attendance do not.
  • Resources (smaller share) — class size, per-pupil funding, school size and type.

Scores compare schools within their own state, because every state writes its own tests and sets its own proficiency bar. Full methodology

Data sources: NCES CCD 2024-25, U.S. Dept. of Education EDFacts (test results & graduation) | Last updated: October 2026