Jefferson Jr. High School is located at 1525 N. Loomis St., Naperville.
Jefferson Jr High School
1525 N Loomis Street, Naperville, IL 60563
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Jefferson Jr. High School is located at 1525 N. Loomis St., Naperville.
February 5, 2026
Students identifying as multiracial accounted for 4.5% of enrollment in DuPage County public schools during the 2024-25 school year.
Read more →January 30, 2026
There were 34,582 Hispanic students enrolled in DuPage County schools in the 2024-25 school year, according to the Illinois State Board of Education.
Read more →January 23, 2026
Students identifying as Black accounted for 6.1% of enrollment in DuPage County public schools during the 2024-25 school year.
Read more →January 19, 2026
There were 19,221 Asian students enrolled in DuPage County schools in the 2024-25 school year, according to the Illinois State Board of Education.
Read more →December 1, 2025
In DuPage County schools, there were more white students than any other individual ethnicity in the 2024-25 school year, according to the Illinois State Board of Education.
Read more →November 21, 2025
Out of the 57,031 students who took the IAR in the 2023-24 school year, 44.6% passed the Mathematics portion of the test.
Read more →November 14, 2025
Out of the 57,072 students who took the IAR in the 2023-24 school year, 55.7% passed the ELA portion of the test.
Read more →November 2, 2025
With an average salary of $89,680, 91.8% of teachers remain on their positions in DuPage County schools, according to the 2024 three-year average.
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