Enrollment
325
Elementary
DISTRICT 457 · STATE 443
SCHOOL COMMUNITY·INTERBORO SD·NCES 421217004847
Tinicum School
First & Seneca Streets, Essington, PA 19029 · (610) 521-4450 · Delaware County
GRADES 01–08ELEMENTARY21-SUBURBTITLE IREGULAR SCHOOL325 STUDENTS
C
allk12 Grade
Scored higher than 26% of Pennsylvania public elementary schools
- CTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- C-Beats 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
Student : Teacher
9.5:1
34 FTE teachers
DISTRICT 11.3:1 · STATE 13.1:1
Free / Reduced Lunch
56%
183 students
DISTRICT 54% · STATE 75%
Community
0
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
| Grade | Students | Share |
|---|---|---|
| Grade 1 | 36 | 11% |
| Grade 2 | 40 | 12% |
| Grade 3 | 36 | 11% |
| Grade 4 | 29 | 9% |
| Grade 5 | 49 | 15% |
| Grade 6 | 42 | 13% |
| Grade 7 | 44 | 14% |
| Grade 8 | 49 | 15% |
This year's 1st grade class (36) is 27% smaller than its 8th grade class (49).
Student demographics
53%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 59% · STATE 59% · US 70%
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
School pathway
Students here typically continue to
Tinicum School→Interboro SHS
Based on grade levels within Interboro SD. Attendance zones can vary; confirm enrollment with the district.
Test scores
PSSA + Keystone 2024-25 . % Proficient or AdvancedEnglish Language Arts
40.5%
PA avg 51.1% . -12.8pp since 2023
Math
34.6%
PA avg 43.0% . -5.0pp since 2023
What this means: On the PSSA + Keystone, Pennsylvania's statewide test, about 41 of every 100 students at this school read and write at grade level and about 35 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 13 points since 2023, while math scores are down about 5 points.
PSSA + Keystone results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 40.5% | 34.6% |
| 2023-24 | 53.3% | 39.6% |
% 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 · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
45.5%
composite math + reading, all grades
Predicted
53.5%
based on PA schools with similar FRL share
Beats by
-7.9pp
below demographic expectation
What this means: About 46% of students here test proficient in math and reading, compared with the roughly 53% 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 Tinicum School
Tinicum School's state test result (45.5% proficient) is higher than 0 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Tinicum School this school | 325 | 56.3% | 45.5% |
| Leedom Elementary School Ridley Park | 291 | 56.7% | 54.5% |
| York Haven Elementary School York Haven | 293 | 53.9% | 82.4% |
| Young Scholars of Central PA CS State College | 321 | 49.5% | 54.5% |
| Edgewood Elementary School Folsom | 347 | 50.4% | 50.9% |
| Blair Mill Elementary Hatboro | 361 | 53.7% | 60.5% |
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 Tinicum School ranks
Among elementary schools| Measure | This school | In Pennsylvania | In Delaware County |
|---|---|---|---|
| State test proficiency ranked highest first | 45.5% | #972 of 1,396 | #36 of 59 |
| Math proficiency ranked highest first | 34.6% | #1,086 of 1,511 ▼ 114 | #42 of 69 ▼ 6 |
| Reading proficiency ranked highest first | 40.5% | #997 of 1,511 ▼ 175 | #39 of 69 ▼ 8 |
| Enrollment ranked largest first | 325 | #1,152 of 1,638 | #54 of 75 |
| Students per teacher ranked fewest first | 9.5:1 | #42 of 1,528 | #8 of 74 |
| Diversity index ranked most diverse first | 52.9% | #485 of 1,531 | #24 of 74 |
| Free and reduced lunch ranked highest share first | 56.3% | #882 of 1,600 | #35 of 73 |
| Enrollment change since 2017-18 ranked steepest decline first | -6.1% | #810 of 1,045 | #34 of 45 |
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 2024-25Enrollment
325
+3 (+1%) vs 2020
-21% since 1990-91, when it was 414
Student : Teacher
9.5:1
was 11.9:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 325 | 34.3 | 9.5:1 | 56% (183) |
| 2023-24 | 319 | 29.3 | 10.9:1 | 57% (183) |
| 2022-23 | 319 | 29.3 | 10.9:1 | 70% (223) |
| 2020-21 | 322 | 27 | 11.9:1 | 65% (210) |
| 2017-18 | 346 | 29 | 11.9:1 | 65% (224) |
| 2015-16 | 332 | 31 | 10.7:1 | 65% (215) |
| 2010-11 | 338 | 26 | 13.0:1 | 45% (153) |
| 2000-01 | 435 | 30 | 14.5:1 | 22% (94) |
| 1990-91 | 414 | 26 | 15.9:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Tinicum School.
Since 2017-18: students down 6% (346 to 325); teachers up 18% (29 to 34.3).
About Tinicum School
Tinicum School sits in Essington, Pennsylvania, and is classified as an elementary school. The school serves grades 1 through 8. Enrollment is 325 students. Elementary schools in Pennsylvania have about 443 students on average; enrollment here is 27% lower.
The 6 schools of Interboro SD, including Tinicum School, enroll 3,366 students.
White students are 66% of those enrolled at Tinicum School. The next largest groups are 12% Black, 8% multiracial, 6% Asian, and 6% Hispanic. That is in line with Delaware County, where about 63% of residents are White. A diversity index of 53% means there is a 53% chance two randomly chosen students at Tinicum School are from different groups.
Tinicum School reports a ratio of 9.5 students per teacher, from 34.3 full-time-equivalent teachers. The school's 9.5:1 compares with an average of 13.1:1 for elementary schools in Pennsylvania. Lunch program data show 56% of students are eligible for free or reduced-price meals. That is in line with the 58% average for public schools in Delaware County.
Among Pennsylvania public elementary schools, Tinicum School outscored 26%, which works out to a C on the allk12 Grade.
Tinicum School is 7.9 points below its predicted average proficiency rate across its state test results (45.5% versus 53.5%), which places it in neither the top nor the bottom 10% in Pennsylvania.
Delaware County is the school's county. There, the median household earns about $89,546 a year, roughly 42% of adults have a four-year degree or more, and about 7% of residents live below the federal poverty line. Public schools in Delaware County number 113, with about 74,663 students.
Norwood School sits about 1.1 miles from Tinicum School. Around the school, at least 8 other public schools are within five miles. Of the 6 nearby schools with scores, including this one, Tinicum School is 5th on average proficiency.
Federal records code the school's setting as Suburb: Large.
Enrollment went from 322 in 2020-21 to 325 in 2024-25, a change of 3 students. By 2024-25, the school had 9.5 students per teacher, compared with 11.9 in 2020-21.
The discussion board for Tinicum School is open to topics like athletics, class schedules, and weather closures. Parents, students, alumni, and staff are welcome to post.
Delaware County at a glance
View full county profilePopulation
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
Related schools
Other schools in Interboro SD
- Interboro SHSHigh · 1,079 students
- Glenolden SchoolElementary · 614 students
- Norwood SchoolElementary · 557 students
- Prospect Park SchoolElementary · 546 students
- Kindergarten AcademyElementary · 245 students
Nearby schools
- Norwood School1.1 mi · 557
- Leedom Elementary School1.4 mi · 291
- Kindergarten Academy1.4 mi · 245
- Prospect Park School1.4 mi · 546
- Delcroft School1.5 mi · 554
- Delaware County Technical High School - Folcroft1.6 mi · 66
Frequently asked questions
About Tinicum SchoolWhat is the total enrollment at Tinicum School?
Tinicum School enrolls approximately 325 students in grades 01-08.
What grades does Tinicum School serve?
Tinicum School serves grades 01-08.
What is the student-teacher ratio at Tinicum School?
The student-to-teacher ratio at Tinicum School is approximately 9.5:1 (34 FTE teachers).
What is the student diversity at Tinicum School?
Student demographics at Tinicum School are roughly 66% White, 6% Hispanic, 12% Black, 6% Asian, 8% Two or more.
What district is Tinicum School in?
Tinicum School is part of Interboro SD.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.