Line Mountain MS
School pathway
Test scores
PSSA + Keystone 2024-25 . % Proficient or AdvancedWhat this means: On the PSSA + Keystone, Pennsylvania's statewide test, about 48 of every 100 students at this school read and write at grade level and about 18 of 100 do math at grade level. Across all Pennsylvania schools, those numbers are about 51 and 43. Reading and writing scores are down about 1 points since 2023, while math scores are down about 5 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 37% of students here test proficient in math and reading, below the roughly 56% typical for Pennsylvania schools with a similar share of low-income students. BeatsExpectations compares each school with others at the same poverty level, not by raw scores, so a school lands here when its results trail those comparable schools, which is not the same as having low scores. A higher-scoring school can still fall in this tier if similar schools score higher still.
7-year change
SY 2017-18 vs SY 2024-25About Line Mountain MS
Set in Herndon, Pennsylvania, Line Mountain MS is a tight-knit 6-8 campus, part of Line Mountain SD. It educates 319 students across grades 5 through 8. Compared to the state average of about 594 students per school, that is 46% leaner than typical.
Line Mountain MS is one of 3 schools operated by Line Mountain SD, a district that caters to 985 students overall.
Looking at the student body, Line Mountain MS records that 95% of students identify as White, making the school strongly White-majority; the rest reads as 3% Hispanic.
On the resource side, Staff filings list 21 full-time-equivalent teachers, which works out to roughly 15.4:1 students per teacher. That figure is higher than the state norm's 13.2:1 average. An estimated 50% of students are eligible for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. By comparison, Northumberland County runs at roughly 86%, so the school's eligibility rate is below the surrounding baseline.
On a residual basis (actual vs predicted given the student mix), Line Mountain MS falls in the UNDERPERFORMING tier of the BeatsExpectations residual. Given its student profile, a typical campus would land near 56.2%; this one comes in at 36.7%, -19.5 points off the demographic line.
Around the school, community-level numbers for Northumberland County indicate median household earnings sit near $60,583, about 19% of the adult population holds a bachelor's degree or above, and the poverty rate sits near 9%. Across Northumberland County's 23 public schools (combined enrollment of about 10,386 students), Line Mountain MS is one campus in the mix.
Nearest neighbor: Line Mountain HS, around 0.0 miles off. 8 of the 8 nearest public schools sit inside a ten-mile radius, suggesting a relatively low-density school footprint. On composite proficiency, Line Mountain MS comes 7th of 8 in the immediate cluster, behind the nearby-schools average of 53.6%.
Geographically, the school is in a countryside area.
Looking at the recent track record. Line Mountain MS's enrollment has fell 10% since 2018, when it stood at 354 (now 319). Class-load math has grew: from 14.0:1 in 2018 to 15.4:1 in 2025.
On the community side, posts here usually surface around pickup logistics, teacher feedback, and after-school programs. Members of the school community can share what they know.
Northumberland County at a glance
View full county profileQuick facts
Related schools
- Line Mountain El SchElementary · 355 students
- Line Mountain HSHigh · 311 students
- Line Mountain HS0.0 mi · 311
- Upper Dauphin Area MS7.9 mi · 302
- Upper Dauphin Area El Sch7.9 mi · 373
- Upper Dauphin Area HS8.1 mi · 331
- Selinsgrove Intrmd Sch9.7 mi · 535
- Selinsgrove Area HS9.8 mi · 744