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SCHOOL COMMUNITY·NORTHERN YORK COUNTY SD·NCES 421776000459

South Mountain Elementary School

711 South Mountain Road, Dillsburg, PA 17019 · (717) 432-8691 · York County
GRADES KG–05ELEMENTARY21-SUBURBREGULAR SCHOOL389 STUDENTS
B-
allk12 Grade
Scored higher than 47% of Pennsylvania public elementary schools
  • BTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • CBeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • ·Three-year trend Not available for this school, so the grade uses the other parts.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Pennsylvania public elementary schools

Enrollment
389
Elementary
DISTRICT 368 · STATE 443
Student : Teacher
12.2:1
32 FTE teachers
DISTRICT 12.9:1 · STATE 13.1:1
Free / Reduced Lunch
29%
112 students
DISTRICT 30% · STATE 75%
Community
1
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Kindergarten5213%
Grade 16116%
Grade 27018%
Grade 37118%
Grade 45715%
Grade 57820%

This year's kindergarten class (52) is 33% smaller than its 5th grade class (78).

Student demographics
19%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 22% · STATE 59% · US 70%
White
35090%
DISTRICT 88% · STATE 60% · US 43%
Hispanic
164%
DISTRICT 5% · STATE 16% · US 30%
Black
72%
DISTRICT 2% · STATE 14% · US 15%
Asian
82%
DISTRICT 2% · STATE 5% · US 6%
Two+
72%
DISTRICT 2% · STATE 5% · US 5%
Pacific Islander
10%
DISTRICT 0% · STATE 0% · US 0%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
19751%
Female
19249%

School pathway

Students here typically continue to
South Mountain Elementary School→Northern Middle School→Northern High School
Based on grade levels within Northern York County SD. Attendance zones can vary; confirm enrollment with the district.

Discussions

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Test scores

PSSA + Keystone 2024-25 . % Proficient or Advanced
English Language Arts
68.4%
PA avg 51.1% . +6.2pp since 2023
Math
58.1%
PA avg 43.0% . +9.9pp since 2023

What this means: On the PSSA + Keystone, Pennsylvania's statewide test, about 68 of every 100 students at this school read and write at grade level and about 58 of 100 do math at grade level. Across all Pennsylvania schools, those numbers are about 51 and 43. Reading and writing scores are up about 6 points since 2023, while math scores are up about 10 points.

PSSA + Keystone results by year

School yearEnglish Language ArtsMath
2024-2568.4%58.1%
2023-2462.2%48.2%
% Proficient or Advanced, all students and all tested grades.
Source: PSSA + Keystone. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
61.5%
composite math + reading, all grades
Predicted
65.3%
based on PA schools with similar FRL share
Beats by
-3.8pp
below demographic expectation

What this means: About 61% of students here test proficient in math and reading, compared with the roughly 65% typical for Pennsylvania schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Pennsylvania's top nor bottom 10%.

BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

Schools most like South Mountain Elementary School

South Mountain Elementary School's state test result (61.5% proficient) is higher than 2 of the 4 schools below with a result.

SchoolStudentsLow-incomeProficient
South Mountain Elementary School this school38928.8%61.5%
College Square Elementary School
Beaver
40028.5%N/A
Pennell Elementary School
Aston
41530.6%57.5%
Scott Primary School
Glenshaw
39428.4%81.5%
Northwestern Lehigh Elementary School
New Tripoli
39628.5%53.9%
Lyter Elementary School
Montoursville
38231.9%83.5%
Matched among Pennsylvania elementary schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.

Where South Mountain Elementary School ranks

Among elementary schools
MeasureThis schoolIn PennsylvaniaIn York County
State test proficiency
ranked highest first
61.5%#541 of 1,396#22 of 62
Math proficiency
ranked highest first
58.1%#582 of 1,511
▲ 224
#23 of 62
▲ 14
Reading proficiency
ranked highest first
68.4%#236 of 1,511
▲ 319
#9 of 62
▲ 13
Enrollment
ranked largest first
389#927 of 1,638#33 of 65
Students per teacher
ranked fewest first
12.2:1#487 of 1,528#16 of 63
Diversity index
ranked most diverse first
18.8%#1,209 of 1,531#56 of 63
Free and reduced lunch
ranked highest share first
28.8%#1,342 of 1,600#61 of 65
Enrollment change since 2017-18
ranked steepest decline first
-13.7%#496 of 1,045#12 of 42
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
389
-52 (-12%) vs 2020
-24% since 2000-01, when it was 509
Student : Teacher
12.2:1
was 14.7:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-253893212.2:129% (112)
2023-244153013.8:127% (112)
2022-234072914.0:125% (103)
2020-214413014.7:122% (99)
2017-1845129.615.2:121% (96)
2015-164263014.2:121% (91)
2010-114892916.9:111% (54)
2000-015092718.9:17% (34)
Source: NCES Common Core of Data. Rows are the federal collections on file for South Mountain Elementary School.

Since 2017-18: students down 14% (451 to 389); teachers up 8% (29.6 to 32).

About South Mountain Elementary School

South Mountain Elementary School runs as a mid-sized elementary school in Dillsburg, Pennsylvania. The school teaches kindergarten through 5 and enrolls 389 students.

Northern York County SD counts 3,209 students in its 6 schools, and South Mountain Elementary School is one of them.

The share of White students at South Mountain Elementary School is 90%. The next largest groups are 4% Hispanic and 2% Asian. The school's White share is 9 points above the 81% share among York County residents. The diversity index for South Mountain Elementary School is 19%. For US public schools as a whole it is 70%.

The student-to-teacher ratio at South Mountain Elementary School is 12.2:1, based on 32 full-time-equivalent teachers. The average for elementary schools in Pennsylvania, 13.1:1, is higher. South Mountain Elementary School counts 29% of students as eligible for free or reduced-price lunch. Among public schools in York County, the average eligibility rate is 53%.

Among Pennsylvania public elementary schools, South Mountain Elementary School outscored 47%, which works out to a B- on the allk12 Grade.

BeatsExpectations compares each school's average proficiency rate across its state test results with a prediction based on free or reduced-price lunch eligibility. For South Mountain Elementary School, the prediction is 65.3% and the result is 61.5%.

York County is the school's county. There, the median household earns about $84,829 a year, a bachelor's degree or higher is held by about 28% of adults, and the share of residents below the poverty line is 6%. Public schools in York County number 111, with about 64,242 students.

About 1.6 miles separate South Mountain Elementary School from the closest public school, Northern Middle School. Within five miles are 4 other public schools. The average proficiency across nearby scored schools is 55.8%; South Mountain Elementary School's is 61.5%, ranking 2nd of 9.

Its location is classified as Suburb: Large by the National Center for Education Statistics.

In 2020-21, South Mountain Elementary School enrolled 441 students. By 2024-25, that number had fallen to 389. The student-to-teacher ratio dropped from 14.7:1 in 2020-21 to 12.2:1 in 2024-25.

The South Mountain Elementary School discussion page is a place for special education services, counseling, and support programs. Teachers and staff are welcome to share updates too.

York County at a glance

View full county profile
Population
462,924
Census ACS
Median income
$84,829
Household, ACS
Bachelor's+
28%
Adults 25+
Poverty rate
6%
Below federal line
Schools in county
111
64,242 students

Quick facts

School name
South Mountain Elementary School
District
Northern York County SD
Address
711 South Mountain Road, Dillsburg, PA 17019
Phone
(717) 432-8691
County
York County
Level
Elementary
Grade range
KG–05
Total enrollment
389
Teachers (FTE)
32
Student–teacher ratio
12.2:1
Free and reduced lunch
112 (29%)
Locale
21-Suburb: Large
NCES ID
421776000459
Charter school
No
Virtual school
No

Related schools

Other schools in Northern York County SD
Other schools in Dillsburg
Other South Mountain Elementary schools

3 other US public schools in 4 states are named South Mountain Elementary. South Mountain Elementary School is the 2nd largest of the 4.

Nearby schools

Frequently asked questions

About South Mountain Elementary School
What is the total enrollment at South Mountain Elementary School?
South Mountain Elementary School enrolls approximately 389 students in grades KG-05.
Is South Mountain Elementary School an elementary, middle, or high school?
South Mountain Elementary School is an elementary school covering grades KG-05.
How many teachers does South Mountain Elementary School have?
South Mountain Elementary School employs 32 FTE teachers, for a student-to-teacher ratio of 12.2:1.
What is the student diversity at South Mountain Elementary School?
Student demographics at South Mountain Elementary School are roughly 90% White, 4% Hispanic, 2% Black, 2% Asian, 2% Two or more.
What district is South Mountain Elementary School in?
South Mountain Elementary School is part of Northern York County SD.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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