Tinicum Sch
School pathway
Test scores
PSSA + Keystone 2024-25 . % Proficient or AdvancedWhat 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.
BeatsExpectations
Demographically-adjusted score · methodologyWhat 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%.
7-year change
SY 2017-18 vs SY 2024-25About Tinicum Sch
Tinicum Sch, a modestly sized primary school in Essington, Pennsylvania, run under Interboro SD, instructs 325 students, covering grades 1 through 8. Compared to the state average of about 443 students per school, that is 27% below typical.
Interboro SD comprises 6 schools with combined enrollment of 3,366 students; Tinicum Sch is among them.
For racial and ethnic makeup, Tinicum Sch logs that White students make up the majority at 66%; the rest breaks down as 12% Black, 8% multiracial, 6% Asian, 6% Hispanic. Compared to Delaware County overall, the school's racial mix sits in roughly the same range.
Looking at school resources, Staff filings list 34 full-time-equivalent teachers, which works out to roughly 9.5:1 students per teacher. Statewide, the average ratio sits near 13.1:1, putting Tinicum Sch tighter than the state norm the norm. About 56% of enrolled students meet the income threshold for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator.
Adjusting for the school's free-and-reduced-lunch share, Tinicum Sch performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 53.5%, the actual is 45.5%, a residual of -7.9 points.
In the surrounding community, the surrounding county (Delaware County) logs that median household earnings sit near $89,546, roughly 42% of adults have completed at least a four-year degree, and census figures put the poverty rate at about 7%. Tinicum Sch is one of 113 public schools in Delaware County (combined enrollment of about 74,663 students).
Norwood Sch is the nearest neighboring public school, about 1.1 miles from this campus. Within five miles, there are 8 other public schools. Ranking that nearby cluster on reported proficiency puts Tinicum Sch at 5th of 6; the average score across the group is 49.1%.
The campus sits in a suburban setting.
Looking at the recent track record. Tinicum Sch's enrollment has contracted 6% since 2018, when it stood at 346 (now 325). Over the same period, the White share contracted from 80% to 66%. Class-load math has tightened: from 11.9:1 in 2018 to 9.5:1 in 2025.
Within the allk12 community for this school, recent activity here tends to focus on school events, parent volunteer needs, and clubs. Parents, students, alumni, and staff are welcome to weigh in.
Delaware County at a glance
View full county profileQuick facts
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