Illinois Valley Times

Ottawa Township High School had the highest enrollment among LaSalle County schools, welcoming 1,256 students during the 2021-22 school year, according to the Illinois State Board of Education report.

Out of all the students welcomed in the 2021-22 school year, 51.3% of them were boys, and 48.7% were girls.

Data also showed that most of the students were white, representing 77.7% of the student body at Ottawa Township High School.

Among the 44 schools in LaSalle County, La Salle-Peru Township High School ranked second in enrollment with 1,213 students, while Streator Township High School welcomed 816 students to be ranked third in the 2021-22 school year.

Ottawa Township High School is a part of Ottawa Township High School District 140, which generally encompasses schools within LaSalle County with its main office in Ottawa.

In the previous school year, Ottawa Township High School had the highest number of students among LaSalle County schools.

In the 2021-22 school year, Illinois had roughly 1.9 million students enrolled across approximately schools. There were more than 130,000 teachers in the public schools, or roughly one teacher for every 15 students, compared to the national average of 1:16.

K-12 enrollment has been declining in Illinois for many years, reflecting demographic changes. Combined public and private K-12 enrollment dropped 3% between the 2019–20 and 2020–21 school years (60,900 students), far more than the typical 0.5% to 1.5% annual enrollment declines in Illinois over the last 5 years.

School name	City	Total Enrolment
Ottawa Township High School	Ottawa	1,256
La Salle-Peru Township High School	LaSalle	1,213
Streator Township High School	Streator	816
Northwest Elementary School	LaSalle	622
Northlawn Junior High School	Streator	618
Northview Elementary School	Peru	588
Marseilles Elementary School	Marseilles	517
Mendota Township High School	Mendota	503
Northbrook School	Mendota	492
Centennial Elementary School	Streator	454
Wallace Elementary School	Ottawa	418
Lincoln Elementary School	Ottawa	410
Kimes Elementary School	Streator	405
Seneca High School	Seneca	383
Shepherd Middle School	Ottawa	377
Central Intermediate School	Ottawa	374
Parkside Middle School	Peru	349
McKinley Elementary School	Ottawa	338
Lincoln Elementary School	Mendota	317
Lincoln Elementary School	Oglesby	317
Seneca Grade School North Campus	Seneca	288
Lincoln Junior High School	LaSalle	263
Jefferson Elementary School	Ottawa	249
Earlville Elementary School	Earlville	230
Waltham Elementary School	Utica	205
Blackstone Elementary School	Mendota	204
Serena Middle School	Serena	197
Grand Ridge School	Grand Ridge	186
Seneca Elementary School South Campus	Seneca	178
Leland Elementary School	Leland	177
Serena High School	Serena	177
Milton Pope Elementary School	Marseilles	168
Dimmick Community Consolidated School District 175	LaSalle	150
Sheridan Elementary School	Sheridan	144
Washington Elementary School	Oglesby	132
Tonica Grade School	Tonica	131
Harding Grade School	Earlville	120
Earlville Junior/Senior High School	Earlville	119
Ransom Grade School	Ransom	92
Rutland Elementary School	Ottawa	72
Lostant Elementary School	Lostant	63
Deer Park C.C. Elementary School	Ottawa	63
Leland High School	Leland	62