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LaSalle County

Illinois · Public K-12

Public K-12 schools in LaSalle County number 54 per the most recent NCES data, averaging about 269 students per campus. That works out to 28 elementary, 10 middle, and 14 high schools.

7-year change in LaSalle County

SY 2017-18 vs SY 2024-25
Total enrollment
14,523
-1,072 (-7%) vs SY 2017-18
School count
44
-3 (-6%) vs SY 2017-18
% White
70%
was 75%
% Hispanic
22%
was 17%
% Black
3%
was 3%
% Asian
1%
was 1%
Source: NCES Common Core of Data, enrollment-weighted demographic averages
Schools
54
28 districts
Enrollment
14,523
NCES CCD
Median income
$73,045
Above Illinois avg
Free/reduced lunch
52.9%
Above Illinois avg
Elementary
28
7,169 students
Middle
10
2,982 students
High
14
4,372 students
Combined / other
2
schools
LARGEST DISTRICT
Ottawa ESD 141
1,747 students · 28 districts in LaSalle County

County vs. school enrollment demographics

Left bar is the racial makeup of LaSalle County residents (Census ACS 5-year). Right bar is the enrollment-weighted makeup of public schools in the county (NCES CCD). NCES systematically under-reports Hispanic, Pacific Islander, and Native American enrollment for many schools; where the resident share is meaningful but the reported school share is zero, we mark the school bar "not reported".

County residents
White
86%
Hispanic
11%
Black
3%
Asian
1%
Two or more
7%
Native American
0%
Pacific Islander
0%
School enrollment
White
70%
Hispanic
22%
Black
3%
Asian
1%
Two or more
5%
Native American
0%
Pacific Islander
0%
Bachelor's+
20.5%
adults 25+
Poverty rate
10.6%
ACS 5-year
Unemployment
5.4%
civilian labor
Median age
42
21.2% under 18

Test scores in LaSalle County

Latest 2024-25 ELA proficiency, 32 schools ranked. Illinois state average: 51.0%.

See all 32 schools in LaSalle County ranked by score →

All schools (54)

LargestA-ZTop rated
NameCityLevelGradesEnrollmentRating
Ottawa Township High SchoolOttawaHigh09-121,223·
La Salle-Peru Twp High SchoolLa SalleHigh09-121,167·
Streator Twp High SchoolStreatorHigh09-12764·
Northwest Elem SchoolLa SalleElementaryPK-05650·
Northlawn Jr High SchoolStreatorMiddle05-08614·
Northview Elem SchoolPeruElementaryPK-04594·
Marseilles Elementary SchoolMarseillesElementaryPK-08528·
Northbrook SchoolMendotaMiddle05-08526·
Mendota Twp High SchoolMendotaHigh09-12493·
Centennial Elem SchoolStreatorElementaryKG-04482·
Wallace Elem SchoolOttawaElementaryPK-08420·
Kimes Elem SchoolStreatorElementaryPK-02415·
Lincoln Elem SchoolOttawaElementaryPK-04387·
Seneca High SchoolSenecaHigh09-12378·
Parkside Middle SchoolPeruMiddle05-08372·
McKinley Elem SchoolOttawaElementaryPK-04364·
Shepherd Middle SchoolOttawaMiddle07-08353·
Central Intermediate SchoolOttawaMiddle05-06339·
Lincoln Elem SchoolOglesbyElementaryPK-05328·
Lincoln Elem SchoolMendotaElementary02-04319·
Jefferson Elem SchoolOttawaElementaryPK-04304·
Lincoln Jr High SchoolLa SalleMiddle06-08269·
Seneca Grade School North CampusSenecaElementaryPK-04256·
Earlville Elem SchoolEarlvilleElementaryKG-08253·
Waltham Elementary SchoolUticaElementaryPK-08246·
Grand Ridge SchoolGrand RidgeElementaryKG-08212·
Seneca Elem School South CampusSenecaMiddle05-08209·
Blackstone Elem SchoolMendotaElementaryKG-01197·
Milton Pope Elem SchoolMarseillesElementaryKG-08195·
Serena Middle SchoolSerenaMiddle05-08184·
Leland Elem SchoolLelandElementaryPK-08175·
Serena High SchoolSerenaHigh09-12162·
Dimmick Comm Cons SD 175La SalleElementaryPK-08153·
Sheridan Elem SchoolSheridanElementaryKG-04135·
Harding Grade SchoolEarlvilleElementaryPK-04130·
Washington Elem SchoolOglesbyMiddle06-08116·
Tonica Grade SchoolTonicaElementaryPK-0898·
Earlville Jr/Sr High SchoolEarlvilleHigh09-1297·
Ransom Grade SchoolRansomElementaryKG-0896·
Leland High SchoolLelandHigh09-1288·
Rutland Elem SchoolOttawaElementaryPK-0870·
Lostant Elem SchoolLostantElementaryKG-0863·
The Earlville Early Learning CtrEarlvilleElementaryPK-PK55·
Deer Park C C Elem SchoolOttawaElementaryKG-0844·
LMP ROEPeruHigh06-120·
LMP ROE ALOPPeruHigh06-120·
LMP ROE TAOEPPeruHigh06-120·
LMP Regional Office of EducationOttawaCombined04-120·
La Salle-Peru Area Career CtrPeruHigh11-120·
LaSalle Co Detention Center 6-8OttawaMiddle06-080·
LaSalle Co Detention Center 9-12OttawaHigh09-120·
ROE 35 AcademyPeruCombined04-120·
ROE 35 Regional Work Study PrograOttawaHigh12-120·
S.O.A.RPeruElementaryM-M··

Cities in LaSalle County

Ottawa13 schoolsPeru8 schoolsEarlville4 schoolsLa Salle4 schoolsMendota4 schoolsStreator4 schoolsSeneca3 schoolsLeland2 schoolsMarseilles2 schoolsOglesby2 schoolsSerena2 schoolsGrand Ridge1 schoolLostant1 schoolRansom1 schoolSheridan1 schoolTonica1 schoolUtica1 school

About LaSalle County

In Illinois, LaSalle County is a middle-population county of about 108,714 residents. 54 public schools across the county hosts about 14,523 students between them.

In context, census numbers show typical household earnings sit around $73,045, about 21% of adults have a bachelor's degree or above, and the federal-poverty share is near 11%.

In terms of grade levels, LaSalle County consists of 28 elementary schools (7,169 students), 10 middle schools (2,982), 14 high schools (4,372), and 2 combined or other schools.

The largest single district in LaSalle County is Ottawa ESD 141, which alone enrolls about 1,747 students.

Over the past 7-year window. Across the same 7-year window, public-school enrollment fell 7%: 15,595 students in SY 2017-18 versus 14,523 in SY 2024-25. LaSalle County now counts 44 public schools, down from 47 in SY 2017-18. The White share of public-school enrollment declined from 75% to 70%.

On allk12, the community for LaSalle County discusses enrollment trends, district policy changes, and bus-route updates. Members of the local community share what they see day-to-day.

Frequently asked questions

How many public schools are in LaSalle County?
LaSalle County, Illinois has 54 public K-12 schools serving approximately 14,523 students.
How many high schools are in LaSalle County?
LaSalle County, Illinois has 14 public high schools, serving approximately 4,372 students.
How many middle schools are in LaSalle County?
LaSalle County, Illinois has 10 public middle schools, serving approximately 2,982 students.
How many elementary schools are in LaSalle County?
LaSalle County, Illinois has 28 public elementary schools, serving approximately 7,169 students.
What is the largest school district in LaSalle County?
Ottawa ESD 141 is the largest school district in LaSalle County, serving approximately 1,747 students. The county contains 28 school districts overall.
What is the population of LaSalle County?
LaSalle County, Illinois has a population of approximately 108,714, with a median age of 42. About 21.2% of residents are under 18.
What is the median household income in LaSalle County?
Median household income in LaSalle County is $73,045, above the Illinois average of $70,291. About 10.6% of residents live below the federal poverty line.
How educated are residents of LaSalle County?
Approximately 20.5% of adults 25 and older in LaSalle County hold a bachelor's degree or higher, according to the Census ACS 5-year estimate.
What share of students in LaSalle County qualify for free or reduced lunch?
Roughly 52.9% of students in LaSalle County public schools qualify for free or reduced-price lunch, a common proxy for low-income enrollment. This is higher than the Illinois county average of 51.1%.
What is the student-teacher ratio in LaSalle County schools?
Across LaSalle County public schools, the enrollment-weighted student-teacher ratio is approximately 12.9 to 1.

LaSalle County school rankings

Largest schoolsAll rankings →
DATA · Census ACS 5-year · NCES Common Core of Data