County directory · Illinois · 2026–27

School districts in Jefferson County, IL

Jefferson County has 14 regular public school districts, enrolling 5,314 students in 2024–25. The largest is Mount Vernon SD 80 (1,445 students, 27% of the county), followed by Mt Vernon Twp HSD 201 and Woodlawn Unit School District 209. 13 of the 14 offer kindergarten. Illinois's kindergarten cutoff: turn 5 by September 1.

The 14 districts, largest first

School districts in Jefferson County, IL by 2024–25 enrollment
District and officeGradesSchoolsStudentsKindergartenDistrict office contact
Mount Vernon SD 80
2710 North St, Mount Vernon
Pre-K–841,445141
(618) 244-8080
Mt Vernon Twp HSD 201
11101 N Wells Bypass Rd, Mount Vernon
9–1221,233—
(618) 244-3700
Woodlawn Unit School District 209
300 N Central St, Woodlawn
Pre-K–12249636
No website listed by NCES (2025–26)
(618) 735-2631
Bluford Unit School District 318
901 6th St, Bluford
Pre-K–12237014
No website listed by NCES (2025–26)
(618) 732-8242
Waltonville CUSD 1
804 W Knob St, Waltonville
Pre-K–12231025
(618) 279-7211
Rome CCSD 2
233 W South St, Dix
Pre-K–8128629
(618) 266-7214
Summersville SD 79
1118 Fairfield Rd, Mount Vernon
Pre-K–8128328
(618) 244-8079
Field CCSD 3
21075 N Hails Ln, Texico
Pre-K–8123327
(618) 755-4611
Spring Garden Community Consolidated School District 178
14975 E Bakerville Rd, Mount Vernon
K–8221718
No website listed by NCES (2025–26)
(618) 244-8070
Bethel SD 82
1201 Bethel Rd, Mount Vernon
Pre-K–8115414
(618) 244-8095
Opdyke-Belle-Rive CCSD 5
19380 E 4Th St, Opdyke
Pre-K–8112210
(618) 756-2492
Grand Prairie CCSD 6
21462 N Richview Ln, Centralia
K–81635
No website listed by NCES (2025–26)
(618) 249-6289
McClellan CCSD 12
9475 N IL Highway 148, Mount Vernon
K–81567
(618) 244-8072
Farrington CCSD 99
20941 E Divide Rd, Bluford
also serves Marion County
K–81465
(618) 755-4414

Jefferson County at a glance

Together the 14 districts run 22 schools from offices in 8 towns. The smallest by enrollment is Farrington CCSD 99, with 46 students; the median Jefferson County district has 233. By grade span: 6 Pre-K–8, 4 K–8, 3 Pre-K–12 and 1 9–12. Without kindergarten: Mt Vernon Twp HSD 201 (9–12).

Kindergarten in 2024–25, counting the 13 districts that report a K grade: 359 children. The biggest kindergarten was Mount Vernon SD 80's, with 141; Woodlawn Unit School District 209 had 36, and the smallest, Farrington CCSD 99, had 5.

Jefferson County holds 14 of Illinois's 855 regular districts (1.6%) and 0.3% of its 1,837,668 public school students, ranking 11th of 102 counties by number of districts and 38th by enrollment. By size, 2 enroll 1,000 to 4,999 and 12 have fewer than 1,000 students, and the average school here has about 242 students.

One district reaches past the county line: Farrington CCSD 99 (into Marion County).

Which district am I in?

Each district draws its own attendance zones, so your home address decides it, and with 1 of Jefferson County's districts crossing county lines the county alone won't. There is no address lookup here; ask the district. 4 of the 14 have no website on file with NCES; their office phone numbers are in the table. Websites for the rest:

Mount Vernon SD 80 · Mt Vernon Twp HSD 201 · Waltonville CUSD 1 · Rome CCSD 2 · Summersville SD 79 · Field CCSD 3 · Bethel SD 82 · Opdyke-Belle-Rive CCSD 5 · McClellan CCSD 12 · Farrington CCSD 99

What grade will my child be in?

↓ Tap Calculate to see the grade
Most US states use a September 1 cutoff. Year-stamped for the 2026–27 school year.

More in Illinois

Every Illinois district by county · Illinois kindergarten cutoff

More Illinois county directories: Clinton County (12) · DuPage County (42) · Lake County (44) · Madison County (13) · McHenry County (19) · Winnebago County (11)

Sources

District list, grades, school counts and websites: NCES Common Core of Data (CCD) LEA Universe Directory, SY 2025-26 (preliminary, v0a), published July 1, 2026. Regular public districts only (NCES LEA types 1 and 2); charter-only, state-run and regional service agencies are not listed.
Enrollment: NCES CCD LEA Membership, SY 2024-25 (v1a), published December 29, 2025 — the newest year NCES has released.
Counties: NCES EDGE Public LEA Geocodes, SY 2024-25 (district office location) and NCES EDGE Geographic Relationship Files 2025 (grf25_lea_county) (counties each district boundary covers).
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