schoolsbycounty

State district guide

Illinois public school districts

Compare district systems across Illinois by enrollment scale, school count, county context, generated guide coverage, and the parent checks that matter before choosing where to live.

Direct answer for parents

What this district ranking can and cannot tell you

If you are searching for the best school districts in Illinois, start with the largest and most data-rich district systems below, then verify the specific school assigned to each address. SchoolsByCounty orders districts by reported enrollment and school count because those fields are consistent in NCES. It does not convert district size into a quality rating.

Start with scale

City of Chicago SD 299

321,666 reported students

Check county context

DuPage County

89/100 county score

Verify locally

Address fit

Attendance boundaries and transfers are not in NCES

District table

Largest public school districts in Illinois

The first 60 rows show the largest district systems by reported enrollment. Open district guides where available, or use the county profile when a detailed district page is not generated yet.

962 districts in state file

Illinois public school districts ranked by reported enrollment.
RankDistrictStudents
1
City of Chicago SD 299

LEA ID 1709930

Cook County644 schools
321,666
2
SD U-46

LEA ID 1713710

DuPage County58 schools
35,082
3
Rockford SD 205

LEA ID 1734510

27,442
4
Indian Prairie CUSD 204

LEA ID 1741690

DuPage County33 schools
25,687
5
Plainfield SD 202

LEA ID 1731740

Will County31 schools
24,856
6
CUSD 300

LEA ID 1708550

McHenry County29 schools
20,443
7
CUSD 308

LEA ID 1730270

Kendall County22 schools
16,940
8
Naperville CUSD 203

LEA ID 1727710

DuPage County22 schools
16,073
9
Valley View CUSD 365U

LEA ID 1740070

Will County20 schools
15,187
10
Schaumburg CCSD 54

LEA ID 1734740

Cook County28 schools
14,966
11
Waukegan CUSD 60

LEA ID 1741250

Lake County22 schools
13,679
12
Springfield SD 186

LEA ID 1737080

Sangamon County35 schools
13,066
13
Peoria SD 150

LEA ID 1731230

Peoria County32 schools
12,674
14
Aurora East USD 131

LEA ID 1704680

Kane County20 schools
12,619
15
McLean County USD 5

LEA ID 1728620

McLean County26 schools
12,409
16
Township HSD 211

LEA ID 1730450

Cook County7 schools
12,270
17
Township HSD 214

LEA ID 1704170

Cook County10 schools
12,052
18
St Charles CUSD 303

LEA ID 1737170

Kane County18 schools
11,801
19
CUSD 200

LEA ID 1742180

DuPage County20 schools
11,638
20
Aurora West USD 129

LEA ID 1704710

Kane County17 schools
11,211
21
Palatine CCSD 15

LEA ID 1730420

Cook County20 schools
11,103
22
Champaign CUSD 4

LEA ID 1709420

10,282
23
Joliet PSD 86

LEA ID 1720580

Will County22 schools
9,553
24
Cicero SD 99

LEA ID 1710200

Cook County15 schools
8,815
258,595
26
Elmhurst SD 205

LEA ID 1713970

DuPage County13 schools
8,299
27
Barrington CUSD 220

LEA ID 1705050

Cook County12 schools
8,173
28
J S Morton HSD 201

LEA ID 1726880

Cook County4 schools
8,134
29
Decatur SD 61

LEA ID 1711850

Macon County17 schools
7,974
30
Glenbard Twp HSD 87

LEA ID 1716830

DuPage County4 schools
7,836
31
Cons HSD 230

LEA ID 1708400

Cook County3 schools
7,691
32
Belvidere CUSD 100

LEA ID 1705790

Boone County11 schools
7,558
33
Edwardsville CUSD 7

LEA ID 1713530

Madison County15 schools
7,274
347,185
35
Crystal Lake CCSD 47

LEA ID 1711350

McHenry County13 schools
7,109
36
Yorkville CUSD 115

LEA ID 1743960

Kendall County10 schools
6,937
37
Joliet Twp HSD 204

LEA ID 1720610

Will County4 schools
6,918
38
DeKalb CUSD 428

LEA ID 1712000

DeKalb County12 schools
6,840
39
Lincoln Way CHSD 210

LEA ID 1723070

Will County3 schools
6,705
40
Evanston CCSD 65

LEA ID 1714460

Cook County17 schools
6,383
41
Quincy SD 172

LEA ID 1733000

Adams County9 schools
6,345
42
Round Lake CUSD 116

LEA ID 1734990

Lake County11 schools
6,330
43
Rock Island SD 41

LEA ID 1734410

6,204
44
Maine Township HSD 207

LEA ID 1724090

Cook County4 schools
6,183
45
Harlem UD 122

LEA ID 1718240

6,178
46
Woodstock CUSD 200

LEA ID 1743330

McHenry County12 schools
6,159
47
Collinsville CUSD 10

LEA ID 1710650

6,140
48
Wheeling CCSD 21

LEA ID 1742210

Cook County13 schools
6,001
49
Granite City CUSD 9

LEA ID 1717280

5,817
50
Alton CUSD 11

LEA ID 1703600

Madison County10 schools
5,752
51
Comm Cons SD 59

LEA ID 1713770

Cook County15 schools
5,707
52
Lake Zurich CUSD 95

LEA ID 1721900

Lake County8 schools
5,626
53
Oak Park ESD 97

LEA ID 1729250

Cook County10 schools
5,546
54
CHSD 218

LEA ID 1706540

Cook County4 schools
5,490
55
CHSD 155

LEA ID 1711370

5,405
56
Arlington Heights SD 25

LEA ID 1704140

Cook County9 schools
5,316
57
Bremen CHSD 228

LEA ID 1707050

Cook County5 schools
5,270
58
Batavia USD 101

LEA ID 1705220

Kane County8 schools
5,260
59
Orland SD 135

LEA ID 1730220

Cook County10 schools
5,213
60
Geneva CUSD 304

LEA ID 1716380

Kane County10 schools
5,119

— = enrollment not reported in the district record. District rows are informational and must be paired with local assignment tools before a housing decision.

Methodology

How to use district rankings without overreading them

District-level data is useful because it shows the operating system around a public school search: how many schools exist, which county record anchors the district, how much enrollment is reported, and whether a detailed district guide is available. It is not enough to decide where a student should enroll.

Ranking basis

Rows are ordered by reported enrollment, then school count. The method favors broad, data-rich systems because those are the districts parents most often need to research before relocation.

County context

Each district is attached to a primary county record when available. County school scores are context signals, not district ratings, and nearby counties can still matter for commute and housing decisions.

Grade pathway

Elementary, middle, and high school counts help parents spot whether a district looks like a full K-12 pathway or a narrower operating unit. Feeder patterns still require local verification.

Address verification

The final decision happens at the address level. Confirm attendance zones, open-enrollment rules, magnet admissions, charter lotteries, and transfer windows with official district sources.

County context

Districts anchored in higher-scoring county contexts

These rows pair district records with the county-level SchoolsByCounty score. Treat this as a shortlist for deeper research, not a district quality ranking.

89

Students
35,082
Schools
58
Open district guide

Indian Prairie CUSD 204

DuPage County

89

Students
25,687
Schools
33
Open district guide

Naperville CUSD 203

DuPage County

89

Students
16,073
Schools
22
Open district guide

89

Students
11,638
Schools
20
Open district guide

Elmhurst SD 205

DuPage County

89

Students
8,299
Schools
13
Open district guide

Glenbard Twp HSD 87

DuPage County

89

Students
7,836
Schools
4
Open district guide

Parent checklist before relying on a district ranking

Use this page to narrow the field, then answer these local questions before treating any district as a fit for a specific home.

Which school does this address actually feed into?

Use the district address lookup and confirm edge cases near attendance-zone borders.

What happens at transition grades?

A strong elementary fit can split into several middle or high school paths.

Are choice programs realistic for this student?

Magnet, charter, virtual, and transfer options can involve lotteries, applications, or deadlines.

Is the county context aligned with housing tradeoffs?

Pair school research with taxes, commute, home prices, and safety before choosing where to live.

Frequently Asked Questions About Illinois School Districts

What are the best school districts in Illinois?
City of Chicago SD 299, SD U-46, Rockford SD 205 are the largest Illinois district systems by reported enrollment in the NCES file. SchoolsByCounty does not call them the best districts; use this page to find data-rich district systems, then verify assigned schools, program rules, and local fit.
How are Illinois districts ranked here?
Districts are ordered by reported student enrollment, then school count, using NCES public school district records. This is a research-priority ranking, not a quality rating.
Why do only 122 Illinois districts have district guide links?
SchoolsByCounty statically generates detailed district guides for the largest district systems nationally so the pages stay fast and substantive. Districts without guide links remain represented through county and state context pages.
Do these district pages show attendance boundaries?
No. Attendance zones, transfer rules, magnet eligibility, charter admission, transportation, and program availability must be verified with official district or local assignment tools before choosing a home.
Does a large district mean better schools?
No. Larger districts usually have more school options and more public data, but enrollment size is not a school-quality measure. Compare school-level records and official local sources before treating a district as a fit.
How many districts are included for Illinois?
This page includes 962 Illinois public school districts from the current NCES district file, alongside county context and generated district-guide availability where available.
By Evan Brooks, Data EditorPublished

Data Sources

Education data sourced from the National Center for Education Statistics (NCES) Common Core of Data and School District Finance Survey. School scores are derived composite metrics based on available NCES graduation-rate and school-finance signals.

Data is informational only. Coverage varies by county and reporting year. Not for use as the sole basis for educational decisions.