allk12 · Rankings · Highest ratio · Illinois · Sangamon County · High schools

The public high schools with the highest student-to-teacher ratios in Sangamon County, Illinois

Across Sangamon County, Illinois, 11 public high schools are ranked here, ranked by the most students per teacher, a proxy for larger classes. Glenwood High School leads the list at 17.5:1, against a median of 14.3:1 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

Sangamon County, Illinois

Top Students/teacher

17.5:1

Median Students/teacher

14.3:1

HIGHEST RATIO · SANGAMON COUNTY, ILLINOIS

#	School	City	District	Level	Students	Ratio
1	Glenwood High School	Chatham, IL	Ball Chatham CUSD 5	High	1,484	17.5:1
2	Rochester High School	Rochester, IL	Rochester CUSD 3A	High	692	16.9:1
3	Springfield High School	Springfield, IL	Springfield SD 186	High	1,308	16.4:1
4	Springfield Southeast High Sch	Springfield, IL	Springfield SD 186	High	1,229	15.7:1
5	Riverton High School	Riverton, IL	Riverton CUSD 14	High	357	15.5:1
6	Lanphier High School	Springfield, IL	Springfield SD 186	High	1,117	14.3:1
7	Williamsville High School	Williamsville, IL	Williamsville CUSD 15	High	462	14.0:1
8	Pleasant Plains High School	Pleasant Plains, IL	Pleasant Plains CUSD 8	High	416	13.4:1
9	New Berlin High School	New Berlin, IL	New Berlin CUSD 16	High	256	13.0:1
10	Auburn High School	Auburn, IL	Auburn CUSD 10	High	327	12.8:1
11	Pawnee Jr/Sr High Sch	Pawnee, IL	Pawnee CUSD 11	High	247	10.3:1

Page 1 of 1 · top 11 of 11 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.