The public high schools with the lowest student-to-teacher ratios in DeKalb County, Illinois
8 public high schools in DeKalb County, Illinois appear in this ranking of the public high schools with the lowest student-to-teacher ratios, ranked by the fewest students per teacher, a proxy for class size and staffing. Somonauk High School leads the list at 10.7:1, against a median of 13.1:1 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.
| # | School | City | Ratio |
|---|---|---|---|
| 1 | Somonauk High School | Somonauk, IL | 10.7:1 |
| 2 | Hiawatha Jr/Sr High School | Kirkland, IL | 11.0:1 |
| 3 | Hinckley-Big Rock High School | Hinckley, IL | 11.5:1 |
| 4 | Indian Creek High School | Shabbona, IL | 12.9:1 |
| 5 | Sandwich Community High School | Sandwich, IL | 13.3:1 |
| 6 | Genoa-Kingston High School | Genoa, IL | 13.9:1 |
| 7 | DeKalb High School | Dekalb, IL | 15.0:1 |
| 8 | Sycamore High School | Sycamore, IL | 15.6:1 |
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