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SCHOOL COMMUNITY·ALLENTOWN CITY SD·NCES 420228002779

Mosser El Sch

129 S Dauphin St, Allentown, PA 18109 · (484) 765-5881 · Lehigh County
GRADES PK–05ELEMENTARY12-CITYTITLE IREGULAR SCHOOL551 STUDENTS
Enrollment
551
Elementary
DISTRICT 497 · STATE 443
Student : Teacher
14.3:1
38 FTE teachers
DISTRICT 15.5:1 · STATE 13.1:1
Free / Reduced Lunch
103%
568 students
DISTRICT 102% · 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
Kindergarten
94
Grade 1
134
Grade 2
75
Grade 3
93
Grade 4
88
Grade 5
67
Student demographics
White
356%
DISTRICT 6% · STATE 60%
Hispanic
42176%
DISTRICT 74% · STATE 16%
Black
428%
DISTRICT 11% · STATE 14%
Asian
10%
DISTRICT 1% · STATE 5%
Two+
529%
DISTRICT 8% · STATE 5%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
28652%
Female
26548%

Discussions

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Test scores

PSSA + Keystone 2024-25 . % Proficient or Advanced
English Language Arts
15.8%
PA avg 51.1% . -7.5pp since 2023
Math
18.9%
PA avg 43.0% . +2.8pp since 2023
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
21.6%
composite math + reading, all grades
Predicted
33.4%
based on PA schools with similar FRL share
Beats by
-11.8pp
below demographic expectation
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
551
+2 (+0%) vs 2017
Student : Teacher
14.3:1
was 14.5:1
% White
6%
was 7%
% Hispanic
76%
was 74%
% Black
8%
was 12%
% Asian
0%
was 1%
Source: NCES Common Core of Data

About Mosser El Sch

Mosser El Sch is one of the medium-sized elementary campuss in Allentown, Pennsylvania, part of Allentown City SD, with 551 students on its rolls from grades pre-K through 5. Enrollment runs roughly 24% bigger than the state mean of about 443.

Allentown City SD runs 23 schools in total, collectively educating 16,674 students. Mosser El Sch is one of those campuses.

Demographically, Mosser El Sch lists that the largest single group is Hispanic, at 76% of enrollment; the rest consists of 9% multiracial, 8% Black, 6% White. That is noticeably more Hispanic than the county at large, where the share is closer to 28%.

Looking at the economic backdrop, The school reports having 38 full-time-equivalent teachers, for a student-teacher ratio near 14.3:1. That figure is higher than the state norm's 13.1:1 average. An estimated 103% of students are eligible for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal. By comparison, Lehigh County runs at roughly 70%, so the school's eligibility rate is above the surrounding baseline.

With demographic context factored in, Mosser El Sch performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 33.4%, the actual is 21.6%, a residual of -11.8 points.

Across the wider county, community-level numbers for Lehigh County indicate the typical household earns roughly $80,079 per year, roughly 34% of adults have completed at least a four-year degree, and roughly 8% of residents live below the federal poverty line. Across Lehigh County's 83 public schools (combined enrollment of about 56,984 students), Mosser El Sch is one campus in the mix.

Nearest neighbor: Harrison-Morton MS, around 0.8 miles off. Within five miles, there are 8 other public schools. Ranking that nearby cluster on reported proficiency puts Mosser El Sch at 5th of 9; the average score across the group is 21.6%.

Mosser El Sch operates from a high-density location.

Trend over the last 7 years. Over the past 7-year window, the student count held roughly steady: 549 students in 2018 compared to 551 in 2025. The Black share of enrollment declined from 12% to 8% over that span.

Inside the community feed, the page collects discussion, questions, and updates around pickup logistics, teacher feedback, and after-school programs. Members of the school community can share what they know.

Lehigh County at a glance

View full county profile
Population
378,792
Census ACS
Median income
$80,079
Household, ACS
Bachelor's+
34%
Adults 25+
Poverty rate
8%
Below federal line
Schools in county
83
56,984 students

Quick facts

School name
Mosser El Sch
District
Allentown City SD
Address
129 S Dauphin St, Allentown, PA 18109
Phone
(484) 765-5881
County
Lehigh County
Level
Elementary
Grade range
PK–05
Total enrollment
551
Teachers (FTE)
38
Student–teacher ratio
14.3:1
Free/Reduced lunch
568 (103%)
Locale
12-City: Mid-size
NCES ID
420228002779
Charter school
No
Virtual school
No

Related schools

Other schools in Allentown City SD
Other schools in Allentown
Nearby schools

Frequently asked questions

About Mosser El Sch
What is the total enrollment at Mosser El Sch?
Mosser El Sch enrolls approximately 551 students in grades PK-05.
Is Mosser El Sch an elementary, middle, or high school?
Mosser El Sch is an elementary school covering grades PK-05.
How many students per teacher at Mosser El Sch?
Approximately 14.3:1 students per teacher at Mosser El Sch.
What is the student diversity at Mosser El Sch?
Student demographics at Mosser El Sch are roughly 6% White, 76% Hispanic, 8% Black, 0% Asian, 9% Two or more.
What district is Mosser El Sch in?
Mosser El Sch is part of Allentown City SD.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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