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Public schoolHighGrades 9–12

DeKalb High School

🇺🇸 Official data · 2025Dekalb, Illinois 60115 · DeKalb CUSD 428

33.4/ 100
Success Index (US)
Lower 50%

#364 of 691 high schools in Illinois
#12564 of 16,910 nationally

How is this calculated?
Students
2,134
Enrollment
2,134
Source: NCES CCD
Free/reduced-price lunch
61.3%
Source: NCES CCD
Students per teacher
15.1
Source: NCES CCD

About DeKalb High School

DeKalb High School is a public high located in Dekalb, in the DeKalb CUSD 428 school district of Illinois, United States. It caters for Grades 9–12. In 2025 it enrolled 2,134 students. Traditional public schools run by a school district; free to attend.

Its Success Index (US) is 33.4 out of 100, placing it in the lower 50% of high schools in United States and 364th of 691 ranked high schools in Illinois. Its strongest component is students per teacher (49th percentile), and its weakest is reading proficiency (23th percentile).

Other published figures: enrollment 2,134.

There are 9 schools in Dekalb; DeKalb High School ranks 2nd of 8 scored schools there.

Success Index (US) breakdown

Each component is a percentile against high schools across United States.

  • Math proficiency (30%)29%
  • Reading proficiency (30%)36%
  • Community advantage (fewer free/reduced-price lunch) (25%)61.3%
  • Students per teacher (15%)15.1

The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.

Published measures

All figures published for DeKalb High School by the official sources.

Enrollment
2,134
Students enrolled in the latest NCES directory year.
Free/reduced-price lunch
61.3%
Share of students eligible for free or reduced-price lunch.
Students per teacher
15.1
Enrollment divided by FTE teachers; not class size.
Reading proficiency
36%
Share of tested students proficient or above (all students, all grades).
Math proficiency
29%
Share of tested students proficient or above (all students, all grades).

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Schools near DeKalb High School

Closest schools by straight-line distance, with their Success Index (US).

Similar schools

Public high schools in Illinois with a comparable Enrollment.

Frequently asked questions

Is DeKalb High School a good school?

DeKalb High School has a Success Index (US) of 33.4 out of 100 (Lower 50% of high schools in United States) and ranks #364 of 691 in Illinois. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.

Where does DeKalb High School rank in Illinois?

DeKalb High School ranks #364 of 691 high schools in Illinois and #12564 of 16,910 nationally on the Success Index (US) (2025 data).

How many students attend DeKalb High School?

DeKalb High School had 2,134 students in 2025.

Is DeKalb High School a elementary school or a high school?

DeKalb High School is classified as a high covering Grades 9–12. It is a public school.

What other schools are near DeKalb High School?

There are 10 schools within 15 km of DeKalb High School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.