County directory · Illinois · 2026–27
School districts in LaSalle County, IL
LaSalle County has 26 regular public school districts, enrolling 14,523 students in 2024–25. The largest is Ottawa ESD 141 (1,747 students, 12% of the county), followed by Streator ESD 44 and Ottawa Twp HSD 140. 21 of the 26 offer kindergarten. Illinois's kindergarten cutoff: turn 5 by September 1.
The 26 districts, largest first
| District and office | Grades | Schools | Students | Kindergarten | District office contact |
|---|---|---|---|---|---|
| Ottawa ESD 141 320 W Main St, Ottawa | Pre-K–8 | 5 | 1,747 | 175 | (815) 433-1133 |
| Streator ESD 44 1520 N Bloomington St, Streator | Pre-K–8 | 3 | 1,511 | 148 | (815) 672-2926 |
| Ottawa Twp HSD 140 211 E Main St, Ottawa | 9–12 | 2 | 1,223 | — | (815) 433-1323 |
| La Salle-Peru Twp HSD 120 541 Chartres St, La Salle also serves Bureau County | 9–12 | 1 | 1,167 | — | (815) 223-1721 |
| Mendota CCSD 289 1806 Guiles Ave, Mendota also serves Bureau County and Lee County | Pre-K–8 | 3 | 1,042 | 91 | (815) 539-7631 |
| Peru ESD 124 1800 Church St, Peru | Pre-K–8 | 2 | 966 | 86 | (815) 223-1111 |
| La Salle ESD 122 1165 Saint Vincents Ave, La Salle | Pre-K–8 | 2 | 919 | 95 | (815) 223-0786 |
| Streator Twp HSD 40 202 W Lincoln Ave, Streator also serves Livingston County | 9–12 | 1 | 764 | — | (815) 672-0545 |
| Serena CUSD 2 2283 N 3812th Rd, Serena | Pre-K–12 | 4 | 611 | 38 | (815) 496-2850 |
| Marseilles ESD 150 201 Chicago St, Marseilles | Pre-K–8 | 1 | 528 | 60 | (815) 554-4338 |
| Mendota Twp HSD 280 2300 W Main St, Mendota also serves Bureau County and Lee County | 9–12 | 1 | 493 | — | No website listed by NCES (2025–26) (815) 539-7446 |
| Seneca CCSD 170 174 Oak St, Seneca also serves Grundy County | Pre-K–8 | 2 | 465 | 35 | (815) 357-8744 |
| Oglesby ESD 125 755 Bennett Ave, Oglesby | Pre-K–8 | 2 | 444 | 45 | (815) 883-9297 |
| Wallace CCSD 195 1463 N 33rd Rd, Ottawa | Pre-K–8 | 2 | 420 | 43 | (815) 433-2986 |
| Earlville CUSD 9 415 W Union St, Earlville also serves DeKalb County and Lee County | Pre-K–12 | 3 | 405 | 37 | (815) 246-8361 |
| Seneca Twp HSD 160 307 E Scott St, Seneca also serves Grundy County | 9–12 | 1 | 378 | — | (815) 357-5000 |
| Leland CUSD 1 370 N Main St, Leland also serves DeKalb County | Pre-K–12 | 3 | 263 | 19 | (815) 495-3821 |
| Waltham CCSD 185 2902 N Il Route 178, Utica | Pre-K–8 | 1 | 246 | 18 | (815) 667-4417 |
| Grand Ridge CCSD 95 400 W Main St, Grand Ridge | K–8 | 1 | 212 | 22 | (815) 249-6225 |
| Miller Twp CCSD 210 3197 E 28th Rd, Marseilles also serves Grundy County | K–8 | 1 | 195 | 22 | (815) 357-8151 |
| Dimmick Community Consolidated SD #175 297 N 33rd Rd, La Salle also serves Bureau County | K–8 | 1 | 153 | 16 | No website listed by NCES (2025–26) (815) 223-2933 |
| Tonica CCSD 79 535 N 1981st Rd, Tonica | Pre-K–8 | 1 | 98 | 6 | (815) 442-3420 |
| Allen-Otter Creek CCSD 65 400 S Lane St, Ransom also serves Livingston County | K–8 | 1 | 96 | 9 | (815) 586-4611 |
| Rutland CCSD 230 3231 N Il Route 71, Ottawa | Pre-K–8 | 1 | 70 | 9 | No website listed by NCES (2025–26) (815) 433-2949 |
| Lostant CUSD 425 315 W 3rd St, Lostant | K–8 | 1 | 63 | 7 | (815) 368-3392 |
| Deer Park CCSD 82 2350 E 1025th Rd, Ottawa | K–8 | 1 | 44 | 2 | (815) 434-6930 |
LaSalle County at a glance
Together the 26 districts run 47 schools from offices in 16 towns. The smallest by enrollment is Deer Park CCSD 82, with 44 students; the median LaSalle County district has 420. By grade span: 12 Pre-K–8, 6 K–8, 5 9–12 and 3 Pre-K–12. Without kindergarten: Ottawa Twp HSD 140 (9–12), La Salle-Peru Twp HSD 120 (9–12), Streator Twp HSD 40 (9–12), Mendota Twp HSD 280 (9–12) and Seneca Twp HSD 160 (9–12).
Kindergarten in 2024–25, counting the 21 districts that report a K grade: 983 children. The biggest kindergarten was Ottawa ESD 141's, with 175; Streator ESD 44 had 148, and the smallest, Deer Park CCSD 82, had 2.
LaSalle County holds 26 of Illinois's 855 regular districts (3.0%) and 0.8% of its 1,837,668 public school students, ranking 6th of 102 counties by number of districts and 20th by enrollment. By size, 5 enroll 1,000 to 4,999 and 21 have fewer than 1,000 students, and the average school here has about 309 students.
11 districts reach past the county line: La Salle-Peru Twp HSD 120 (into Bureau County), Mendota CCSD 289 (into Bureau County and Lee County), Streator Twp HSD 40 (into Livingston County), Mendota Twp HSD 280 (into Bureau County and Lee County), Seneca CCSD 170 (into Grundy County), Earlville CUSD 9 (into DeKalb County and Lee County), Seneca Twp HSD 160 (into Grundy County) and Leland CUSD 1 (into DeKalb County), and 3 more.
Which district am I in?
Each district draws its own attendance zones, so your home address decides it, and with 11 of LaSalle County's districts crossing county lines the county alone won't. There is no address lookup here; ask the district. 3 of the 26 have no website on file with NCES; their office phone numbers are in the table. Websites for the rest:
Ottawa ESD 141 · Streator ESD 44 · Ottawa Twp HSD 140 · La Salle-Peru Twp HSD 120 · Mendota CCSD 289 · Peru ESD 124 · La Salle ESD 122 · Streator Twp HSD 40 · Serena CUSD 2 · Marseilles ESD 150 · Seneca CCSD 170 · Oglesby ESD 125 · Wallace CCSD 195 · Earlville CUSD 9 · Seneca Twp HSD 160 · Leland CUSD 1 · Waltham CCSD 185 · Grand Ridge CCSD 95 · Miller Twp CCSD 210 · Tonica CCSD 79 · Allen-Otter Creek CCSD 65 · Lostant CUSD 425 · Deer Park CCSD 82
What grade will my child be in?
More in Illinois
Every Illinois district by county · Illinois kindergarten cutoff
More Illinois county directories: Bureau County (12) · Champaign County (15) · Clinton County (12) · Cook County (144) · DuPage County (42) · Lake County (44)