For the 2026 school year, there are 17 public high schools serving 4,577 students in Lasalle County, IL.
The top-ranked public high schools in Lasalle County, IL are Lmp Roe, Lmp Roe Taoep and Leland High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Lasalle County, IL public high schools have an average math proficiency score of 17% (versus the Illinois public high school average of 26%), and reading proficiency score of 24% (versus the 29% statewide average). High schools in Lasalle County have an average ranking of 5/10, which is in the bottom 50% of Illinois public high schools.
Lasalle County, IL public high school have a Graduation Rate of 83%, which is less than the Illinois average of 87%.
The school with highest graduation rate is Seneca High School, with 90-94% graduation rate. Read more about public school graduation rate statistics in Illinois or national school graduation rate statistics.
Minority enrollment is 29% of the student body (majority Hispanic), which is less than the Illinois public high school average of 55% (majority Hispanic).
Best Public High Schools in Lasalle County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #1 - 21. - 2.
Lmp Roe
Alternative School
(Math: <50% | Reading: <50% )
Rank:
Rank:
10/
Top 10%10
2233 6th St
Peru, IL 61354
(815) 220-3560
Peru, IL 61354
(815) 220-3560
Gr: 6-12
Rank: #1 - 21. - 2.
Lmp Roe Taoep
Alternative School
(Math: <50% | Reading: <50% )
Rank:
Rank:
10/
Top 10%10
2233 6th St Ste 2
Peru, IL 61354
(815) 220-3560
Peru, IL 61354
(815) 220-3560
Gr: 6-12
Rank: #33.
Leland High School
(Math: ≤20% | Reading: <50%)
Rank:
Rank:
7/
Top 50%10
370 N Main St
Leland, IL 60531
(815) 495-3231
Leland, IL 60531
(815) 495-3231
Gr: 9-12 | 88 students Student-teacher ratio: 11:1 Minority enrollment: 24%
Rank: #44.
La Salle-peru Twp High School
(Math: 19% | Reading: 27%)
Rank:
Rank:
5/
Bottom 50%10
541 Chartres St
La Salle, IL 61301
(815) 223-1721
La Salle, IL 61301
(815) 223-1721
Gr: 9-12 | 1,167 student Student-teacher ratio: 13:1 Minority enrollment: 33%
Rank: #55.
Mendota Twp High School
(Math: 20-24% | Reading: 20-24%)
Rank:
Rank:
5/
Bottom 50%10
2300 W Main St
Mendota, IL 61342
(815) 539-7446
Mendota, IL 61342
(815) 539-7446
Gr: 9-12 | 493 students Student-teacher ratio: 13:1 Minority enrollment: 45%
Rank: #66.
Ottawa Township High School
(Math: 17% | Reading: 25%)
Rank:
Rank:
5/
Bottom 50%10
211 E Main St
Ottawa, IL 61350
(815) 433-1323
Ottawa, IL 61350
(815) 433-1323
Gr: 9-12 | 1,223 student Student-teacher ratio: 14:1 Minority enrollment: 24%
Rank: #77.
Seneca High School
(Math: 15-19% | Reading: 20-24%)
Rank:
Rank:
5/
Bottom 50%10
307 E Scott St
Seneca, IL 61360
(815) 357-5000
Seneca, IL 61360
(815) 357-5000
Gr: 9-12 | 378 students Student-teacher ratio: 10:1 Minority enrollment: 15%
Rank: #88.
Woodland High School
(Math: 20-29% | Reading: 11-19%)
Rank:
Rank:
4/
Bottom 50%10
5800 E 3000 North Rd
Streator, IL 61364
(815) 672-2900
Streator, IL 61364
(815) 672-2900
Gr: 9-12 | 138 students Student-teacher ratio: 11:1 Minority enrollment: 12%
Rank: #99.
Serena High School
(Math: 11-19% | Reading: 20-29%)
Rank:
Rank:
4/
Bottom 50%10
2283 N 3812th Rd
Serena, IL 60549
(815) 496-2361
Serena, IL 60549
(815) 496-2361
Gr: 9-12 | 162 students Student-teacher ratio: 12:1 Minority enrollment: 14%
Rank: #1010.
Earlville Jr/sr High School
(Math: ≤20% | Reading: ≤20%)
Rank:
Rank:
4/
Bottom 50%10
415 W Union St
Earlville, IL 60518
(815) 246-8361
Earlville, IL 60518
(815) 246-8361
Gr: 9-12 | 97 students Student-teacher ratio: 7:1 Minority enrollment: 20%
Rank: #1111.
Streator Twp High School
(Math: 6-9% | Reading: 20-24%)
Rank:
Rank:
3/
Bottom 50%10
202 W Lincoln Ave
Streator, IL 61364
(815) 672-0545
Streator, IL 61364
(815) 672-0545
Gr: 9-12 | 764 students Student-teacher ratio: 14:1 Minority enrollment: 38%
Rank: n/an/a
La Salle-peru Area Career Center
Vocational School
200 9th St
Peru, IL 61354
(815) 223-2454
Peru, IL 61354
(815) 223-2454
Gr: 11-12
Rank: n/an/a
Lasalle Co Detention Center 9-12
Alternative School
707 Etna Rd
Ottawa, IL 61350
(815) 434-8300
Ottawa, IL 61350
(815) 434-8300
Gr: 9-12
Rank: n/an/a
Lmp Regional Office Of Education
Alternative School
119 W Madison St Ste 102
Ottawa, IL 61350
(815) 434-0780
Ottawa, IL 61350
(815) 434-0780
Gr: 4-12
Rank: n/an/a
Roe 35 Academy
Alternative School
2233 6th St Ste 2
Peru, IL 61354
(815) 220-3560
Peru, IL 61354
(815) 220-3560
Gr: 4-12
Rank: n/an/a
Roe 35 Regional Work Study Progra
Alternative School
321 W Main St
Ottawa, IL 61350
(815) 258-4765
Ottawa, IL 61350
(815) 258-4765
Gr: 12
Frequently Asked Questions
What are the top-ranked public high schools in Lasalle County, IL?
The top-ranked public high schools in Lasalle County, IL include Lmp Roe, Lmp Roe Taoep and Leland High School.
How many public high schools are located in Lasalle County?
14 public high schools are located in Lasalle County.
What is the racial composition of students in Lasalle County?
Lasalle County public high schools minority enrollment is 29% of the student body (majority Hispanic), which is less than the Illinois public high schools average of 55% (majority Hispanic).
Which public high schools in Lasalle County are often viewed compared to one another?
Popular comparisons of public high schools in Lasalle County include: La Salle-peru Twp High School vs. Ottawa Township High School, Earlville Jr/sr High School vs. La Salle-peru Twp High School, Serena High School vs. Ottawa Township High School
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