allk12 · Rankings · Highest ratio · Pennsylvania · Delaware County

The public schools with the highest student-to-teacher ratios in Delaware County, Pennsylvania

Across Delaware County, Pennsylvania, 105 public schools are ranked here, ranked by the most students per teacher, a proxy for larger classes. Penn Wood 9th Grade Academy leads the list at 47.4:1, against a median of 13.2:1 across the ranked schools.

The table below is sortable and filterable, and the full list downloads as a CSV. Figures come from federal NCES enrollment data and, where applicable, state assessment results for 2024-25.

Schools ranked

105

Delaware County, Pennsylvania

Top Students/teacher

47.4:1

Median Students/teacher

13.2:1

HIGHEST RATIO · DELAWARE COUNTY, PENNSYLVANIA

#	School	City	District	Level	Students	Ratio
1	Penn Wood 9th Grade Academy	Yeadon, PA	William Penn SD	High	379	47.4:1
2	Chester Community CS	Chester, PA	Chester Community CS	Elementary	3,782	20.6:1
3	Edgmont Scholars Academy	Chester, PA	Chester-Upland SD	Elementary	422	19.2:1
4	Springfield High School	Springfield, PA	Springfield SD	High	1,434	17.5:1
5	Upper Darby SHS	Drexel Hill, PA	Upper Darby SD	High	4,187	17.0:1
6	Glenwood Elementary School	Media, PA	Rose Tree Media SD	Elementary	586	16.9:1
7	Upper Darby Kdg Center	Drexel Hill, PA	Upper Darby SD	Elementary	468	16.8:1
8	Springfield Literacy Center	Springfield, PA	Springfield SD	Elementary	574	16.5:1
9	Haverford SHS	Havertown, PA	Haverford Township SD	High	1,994	16.4:1
10	Chatham Park Elementary School	Havertown, PA	Haverford Township SD	Elementary	582	15.7:1
11	Vision Academy CS of Excellence	Sharon Hills, PA	Vision Academy CS of Excellence	Elementary	235	15.7:1
12	Chester High School	Chester, PA	Chester-Upland SD	High	806	15.5:1
13	Harris School	Collingdale, PA	Southeast Delco SD	Elementary	715	15.5:1
14	Scenic Hills Elementary School	Springfield, PA	Springfield SD	Elementary	675	15.4:1
15	Darby Twp School	Glenolden, PA	Southeast Delco SD	Elementary	618	15.2:1
16	Manoa Elementary School	Havertown, PA	Haverford Township SD	Elementary	706	15.1:1
17	Rose Tree Elementary School	Media, PA	Rose Tree Media SD	Elementary	439	15.1:1
18	Marple Newtown SHS	Newtown Square, PA	Marple Newtown SD	High	1,266	15.1:1
19	Northley Middle School	Aston, PA	Penn-Delco SD	Middle	748	14.9:1
20	Academy Park High School	Sharon Hill, PA	Southeast Delco SD	High	1,194	14.7:1
21	Sabold Elementary School	Springfield, PA	Springfield SD	Elementary	641	14.7:1
22	Aston Elementary School	Aston, PA	Penn-Delco SD	Elementary	405	14.7:1
23	Richardson Middle School	Springfield, PA	Springfield SD	Middle	1,081	14.6:1
24	STEM at Showalter	Chester, PA	Chester-Upland SD	High	477	14.4:1
25	Ridley High School	Folsom, PA	Ridley SD	High	1,825	14.4:1
26	Media Elementary School	Media, PA	Rose Tree Media SD	Elementary	488	14.4:1
27	Glenolden School	Glenolden, PA	Interboro SD	Elementary	614	14.4:1
28	Springton Lake Middle School	Media, PA	Rose Tree Media SD	Middle	1,012	14.3:1
29	Highland Park Elementary School	Upper Darby, PA	Upper Darby SD	Elementary	737	14.2:1
30	Wallingford Elementary School	Wallingford, PA	Wallingford-Swarthmore SD	Elementary	609	14.2:1
31	Amosland Elementary School	Morton, PA	Ridley SD	Elementary	470	14.0:1
32	Aldan Elementary School	Aldan, PA	William Penn SD	Elementary	238	14.0:1
33	Bell Avenue School	Yeadon, PA	William Penn SD	Elementary	265	13.9:1
34	Lynnewood Elementary School	Havertown, PA	Haverford Township SD	Elementary	580	13.8:1
35	East Lansdowne Elementary School	East Lansdowne, PA	William Penn SD	Elementary	269	13.8:1
36	Grace Park Elementary School	Swarthmore, PA	Ridley SD	Elementary	366	13.8:1
37	Haverford Middle School	Havertown, PA	Haverford Township SD	Middle	1,578	13.7:1
38	Chester Upland School of Arts	Chester, PA	Chester-Upland SD	Elementary	384	13.7:1
39	Chestnutwold Elementary School	Ardmore, PA	Haverford Township SD	Elementary	566	13.7:1
40	Pennell Elementary School	Aston, PA	Penn-Delco SD	Elementary	415	13.7:1
41	Ridley Middle School	Ridley Park, PA	Ridley SD	Middle	1,291	13.7:1
42	Paxon Hollow Middle School	Broomall, PA	Marple Newtown SD	Middle	868	13.7:1
43	Lakeview Elementary School	Ridley Park, PA	Ridley SD	Elementary	403	13.6:1
44	Main Street School	Upland, PA	Chester-Upland SD	Elementary	340	13.6:1
45	Aronimink Elementary School	Drexel Hill, PA	Upper Darby SD	Elementary	626	13.5:1
46	Beverly Hills Middle School	Upper Darby, PA	Upper Darby SD	Middle	1,475	13.5:1
47	Swarthmore-Rutledge School	Swarthmore, PA	Wallingford-Swarthmore SD	Elementary	560	13.5:1
48	Chichester SHS	Boothwyn, PA	Chichester SD	High	981	13.4:1
49	Worrall Elementary School	Broomall, PA	Marple Newtown SD	Elementary	449	13.4:1
50	Ithan Elementary School	Bryn Mawr, PA	Radnor Township SD	Elementary	538	13.4:1

Page 1 of 3 · top 105 of 105 ranked. NCES + state assessment data, 2024-25.↓ Download full CSV

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DATA NOTICE

allk12 is independent and not affiliated with, endorsed by, or sponsored by NCES, the US Census Bureau, any state education agency or assessment program, or any other government agency. Source data is compiled from public records and provided "as is," without warranty of accuracy or completeness. You rely on it, and any analysis derived from it, at your own risk. See the full disclaimer.