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SCHOOL COMMUNITY·PENN-DELCO SD·NCES 421858005143

Northley Middle School

2801 Concord Road, Aston, PA 19014 · (610) 497-6300 · Delaware County
GRADES 06–08MIDDLE21-SUBURBREGULAR SCHOOL748 STUDENTS
Enrollment
748
Middle
DISTRICT 530 · STATE 594
Student : Teacher
14.9:1
50 FTE teachers
DISTRICT 13.2:1 · STATE 13.2:1
Free / Reduced Lunch
35%
265 students
DISTRICT 39% · STATE 75%
Community
1
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 626636%
Grade 725334%
Grade 822931%
Student demographics
37%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 38% · STATE 59% · US 70%
White
58879%
DISTRICT 78% · STATE 60% · US 43%
Hispanic
365%
DISTRICT 6% · STATE 16% · US 30%
Black
638%
DISTRICT 8% · STATE 14% · US 15%
Asian
213%
DISTRICT 3% · STATE 5% · US 6%
Two+
375%
DISTRICT 5% · STATE 5% · US 5%
Native American
30%
DISTRICT 0% · STATE 0% · US 1%
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
36849%
Female
38051%

School pathway

Students here typically continue to
Northley Middle School→Sun Valley High School
Feeds from
Aston Elementary SchoolKG–05Coebourn Elementary SchoolKG–05Parkside Elementary SchoolKG–05Pennell Elementary SchoolKG–05
Based on grade levels within Penn-Delco 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
56.9%
PA avg 51.1% . -1.2pp since 2023
Math
33.8%
PA avg 43.0% . +5.1pp since 2023

What this means: On the PSSA + Keystone, Pennsylvania's statewide test, about 57 of every 100 students at this school read and write at grade level and about 34 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 up about 5 points.

PSSA + Keystone results by year

School yearEnglish Language ArtsMath
2024-2556.9%33.8%
2023-2458.1%28.7%
% 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
46.0%
composite math + reading, all grades
Predicted
62.4%
based on PA schools with similar FRL share
Beats by
-16.5pp
below demographic expectation

What this means: About 46% of students here test proficient in math and reading, compared with the roughly 62% 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 Northley Middle School

Northley Middle School's state test result (46.0% proficient) is higher than 0 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Northley Middle School this school74835.4%46.0%
David E Williams Middle School
Coraopolis
95232.4%70.2%
Lower Dauphin Middle School
Hummelstown
78132.9%48.4%
Upper Perkiomen Middle School
Pennsburg
67235.0%52.8%
Spring Grove Area Middle School
Spring Grove
65040.8%47.3%
Greencastle-Antrim Middle School
Greencastle
72937.0%56.5%
Matched among Pennsylvania middle 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 Northley Middle School ranks

Among middle schools
MeasureThis schoolIn PennsylvaniaIn Delaware County
State test proficiency
ranked highest first
46.0%#273 of 479#8 of 14
Math proficiency
ranked highest first
33.8%#287 of 513
▲ 65
#8 of 14
no change
Reading proficiency
ranked highest first
56.9%#186 of 513
▲ 53
#8 of 14
no change
Enrollment
ranked largest first
748#147 of 522#12 of 14
Students per teacher
ranked fewest first
14.9:1#398 of 486#14 of 14
Diversity index
ranked most diverse first
36.9%#270 of 486#12 of 14
Free and reduced lunch
ranked highest share first
35.4%#378 of 510#7 of 14
Enrollment change since 2017-18
ranked steepest decline first
-4.7%#262 of 332#6 of 9
Ranked against other public middle 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
748
-46 (-6%) vs 2020
+5% since 1990-91, when it was 710
Student : Teacher
14.9:1
was 15.6:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2574850.214.9:135% (265)
2023-2474853.214.1:135% (265)
2022-2375852.214.5:139% (295)
2020-217945115.6:126% (206)
2017-1878551.615.2:127% (209)
2015-167955315.0:124% (187)
2010-117515015.0:121% (156)
2000-018224717.5:19% (72)
1990-917104914.5:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Northley Middle School.

Since 2017-18: students down 5% (785 to 748); teachers down 3% (51.6 to 50.2).

About Northley Middle School

Northley Middle School is listed by the National Center for Education Statistics as a middle school in Aston, Pennsylvania. Students in grades 6 through 8 make up the school's enrollment of 748 students. That compares with an average of about 594 students for middle schools in Pennsylvania.

Across its 6 schools, Penn-Delco SD enrolls 3,181 students. Northley Middle School is one of those schools.

About 79% of the student body at Northley Middle School is White. The remaining students are 8% Black, 5% multiracial, 5% Hispanic, and 3% Asian. Among people living in Delaware County, the White share is about 63%. On a 0 to 100 scale, the school's diversity index is 37, compared with 70 nationally.

Its ratio of 14.9:1 is based on 50.2 full-time-equivalent teachers. The average for middle schools in Pennsylvania is 13.2:1, so this school has more students per teacher. In all, 35% of students qualify for free or reduced-price lunch. Public schools in Delaware County average 58%.

Given its share of students eligible for free or reduced-price lunch, Northley Middle School would be expected to post about 62.4%. Its actual average proficiency rate across its state test results is 46.0%.

In the wider Delaware County area, median household income comes to about $89,546, roughly 42% of adults have a four-year degree or more, and the share of residents below the poverty line is 7%. Delaware County counts 113 public schools with about 74,663 students.

Among nearby public schools, Sun Valley High School is closest at about 0.2 miles. In all, at least 8 other public schools sit within five miles of Northley Middle School. Of the 9 nearby schools with scores, including this one, Northley Middle School is 6th on average proficiency.

Its NCES locale code is Suburb: Large: the school is in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.

Over the 4 years from 2020-21 to 2024-25, enrollment decreased 6%.

This community page is for conversations about athletics, class schedules, and weather closures. You can also rate the school on this page.

Delaware County at a glance

View full county profile
Population
579,222
Census ACS
Median income
$89,546
Household, ACS
Bachelor's+
42%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
113
74,663 students

Quick facts

School name
Northley Middle School
District
Penn-Delco SD
Address
2801 Concord Road, Aston, PA 19014
Phone
(610) 497-6300
County
Delaware County
Level
Middle
Grade range
06–08
Total enrollment
748
Teachers (FTE)
50
Student–teacher ratio
14.9:1
Free and reduced lunch
265 (35%)
Locale
21-Suburb: Large
NCES ID
421858005143
Charter school
No
Virtual school
No

Related schools

Other schools in Penn-Delco SD
Other schools in Aston
Nearby schools

Frequently asked questions

About Northley Middle School
How many students attend Northley Middle School?
Northley Middle School enrolls approximately 748 students in grades 06-08.
Is Northley Middle School an elementary, middle, or high school?
Northley Middle School is a middle school covering grades 06-08.
How many teachers does Northley Middle School have?
Northley Middle School employs 50 FTE teachers, for a student-to-teacher ratio of 14.9:1.
What is the racial breakdown of students at Northley Middle School?
At Northley Middle School, the student body is approximately 79% White, 5% Hispanic, 8% Black, 3% Asian, 5% Two or more.
Is Northley Middle School public or private?
Northley Middle School is a public K-12 school, overseen by Penn-Delco SD.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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