Century Jr/Sr High School
🇺🇸 Official data · 2025Ullin, Illinois 62992 · Century CUSD 100
#540 of 691 high schools in Illinois
#15140 of 16,910 nationally
About Century Jr/Sr High School
Century Jr/Sr High School is a public high located in Ullin, in the Century CUSD 100 school district of Illinois, United States. It caters for Grades 6–12. In 2025 it enrolled 146 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 20.8 out of 100, placing it in the lower 50% of high schools in United States and 540th of 691 ranked high schools in Illinois. Its strongest component is students per teacher (69th percentile), and its weakest is math proficiency (1th percentile).
Other published figures: enrollment 146.
There are 2 schools in Ullin; Century Jr/Sr High School ranks 2nd of 2 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)2.5%
- Reading proficiency (30%)12%
- Community advantage (fewer free/reduced-price lunch) (25%)61.6%
- Students per teacher (15%)9.7
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 Century Jr/Sr High School by the official sources.
- Enrollment
- 146
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 61.6%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 9.7
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 12%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 2.5%
- Share of tested students proficient or above (all students, all grades).
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Schools near Century Jr/Sr High School
Closest schools by straight-line distance, with their Success Index (US).
Century Elementary School
Ullin · Public elementary · Grades PK–5
185 students · 88 m away
Dongola High School
Dongola · Public high · Grades 9–12
62 students · 12 km away
Dongola Elementary School
Dongola · Public elementary · Grades PK–5
108 students · 12 km away
Dongola Jr High School
Dongola · Public middle · Grades 6–8
51 students · 12 km away
Cypress Elem School
Cypress · Public elementary · Grades PK–8
116 students · 13 km away
Similar schools
Public high schools in Illinois with a comparable Enrollment.
Martinsville Jr- Sr High School
Martinsville · Public high · Grades 7–12
146 students
Roanoke-Benson High School
Roanoke · Public high · Grades 9–12
146 students
Henry-Senachwine High School
Henry · Public high · Grades 9–12
147 students
Grayville Jr Sr High School
Grayville · Public high · Grades 6–12
145 students
Pearl City High School
Pearl City · Public high · Grades 9–12
147 students
Waverly Jr/Sr High School
Waverly · Public high · Grades 7–12
147 students
Frequently asked questions
Is Century Jr/Sr High School a good school?
Century Jr/Sr High School has a Success Index (US) of 20.8 out of 100 (Lower 50% of high schools in United States) and ranks #540 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 Century Jr/Sr High School rank in Illinois?
Century Jr/Sr High School ranks #540 of 691 high schools in Illinois and #15140 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Century Jr/Sr High School?
Century Jr/Sr High School had 146 students in 2025.
Is Century Jr/Sr High School a elementary school or a high school?
Century Jr/Sr High School is classified as a high covering Grades 6–12. It is a public school.
What other schools are near Century Jr/Sr High School?
There are 5 schools within 15 km of Century Jr/Sr High School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.