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Home / Illinois /Best schools
Rankings · Illinois

Largest schools in Illinois

Ranked by enrollment — academic rankings appear once test-score data is loaded.

# School City District Enrollment
1 Waukegan High School Waukegan Waukegan CUSD 60 4515
2 Lane Technical High School Chicago City of Chicago SD 299 4369
3 Adlai E Stevenson High School Lincolnshire Adlai E Stevenson HSD 125 4315
4 Taft High School Chicago City of Chicago SD 299 4162
5 East High School Aurora Aurora East USD 131 4121
6 Lyons Twp High Sch La Grange Lyons Twp HSD 204 4037
7 Lockport Township High Sch East Lockport Lockport Twp HSD 205 3924
8 Warren Township High School Gurnee Warren Twp HSD 121 3908
9 Evanston Twp High School Evanston Evanston Twp HSD 202 3731
10 West Aurora High School Aurora Aurora West USD 129 3731
11 J Sterling Morton West High Sch Berwyn J S Morton HSD 201 3631
12 J Sterling Morton East High Sch Cicero J S Morton HSD 201 3481
13 Oak Park & River Forest High Sch Oak Park Oak Park - River Forest SD 200 3427
14 Joliet West High School Joliet Joliet Twp HSD 204 3416
15 Bolingbrook High School Bolingbrook Valley View CUSD 365U 3415
16 Neuqua Valley High School Naperville Indian Prairie CUSD 204 3403
17 Joliet Central High School Joliet Joliet Twp HSD 204 3384
18 Curie Metropolitan High School Chicago City of Chicago SD 299 3175
19 Glenbrook South High School Glenview Glenbrook HSD 225 3139
20 Glenbrook South High School Glenview Glenbrook HSD 225 3123
21 Huntley High School Huntley Huntley Comm Sch Dist 158 3064
22 New Trier Township H S Winnetka Winnetka New Trier Twp HSD 203 3040
23 Metea Valley High School Aurora Indian Prairie CUSD 204 3018
24 Oswego East High School Oswego Cusd 308 2892
25 Oswego High School Oswego Cusd 308 2890
26 South Elgin High School South Elgin Sd U-46 2880
27 Barrington High School Barrington Barrington CUSD 220 2872
28 York Comm High School Elmhurst Elmhurst SD 205 2872
29 Carl Sandburg High School Orland Park Cons HSD 230 2855
30 Homewood-Flossmoor High School Flossmoor Homewood Flossmoor CHSD 233 2831
31 Minooka Community High School Minooka Minooka CHSD 111 2815
32 Comm H S Dist 99 - South High Sch Downers Grove Chsd 99 2796
33 Elgin High School Elgin Sd U-46 2794
34 Lincoln-Way East High School Frankfort Lincoln Way CHSD 210 2761
35 Naperville North High School Naperville Naperville CUSD 203 2713
36 Wm Fremd High School Palatine Township HSD 211 2650
37 Dundee-Crown High School Carpentersville Cusd 300 2645
38 Naperville Central High School Naperville Naperville CUSD 203 2640
39 Lake Park High School Roselle Lake Park CHSD 108 2626
40 Palatine High School Palatine Township HSD 211 2625
41 Rich Township High School Olympia Fields Rich Twp HSD 227 2614
42 Hinsdale Central High School Hinsdale Hinsdale Twp HSD 86 2613
43 Waubonsie Valley High School Aurora Indian Prairie CUSD 204 2563
44 Niles West High School Skokie Niles Twp HSD 219 2562
45 O Fallon High School O Fallon O Fallon Twp HSD 203 2511
46 Amos Alonzo Stagg High School Palos Hills Cons HSD 230 2497
47 Belleville High School-East Belleville Belleville Twp HSD 201 2472
48 Unity Jr High School Cicero Cicero SD 99 2448
49 J B Conant High School Hoffman Estates Township HSD 211 2435
50 Plainfield South High School Plainfield Plainfield SD 202 2421
51 Maine South High School Park Ridge Maine Township HSD 207 2415
52 Glenbard West High School Glen Ellyn Glenbard Twp HSD 87 2373
53 Plainfield North High School Plainfield Plainfield SD 202 2363
54 Glenbard East High School Lombard Glenbard Twp HSD 87 2358
55 Edwardsville High School Edwardsville Edwardsville CUSD 7 2353
56 St Charles East High School Saint Charles St Charles CUSD 303 2310
57 Round Lake Senior High School Round Lake Round Lake CUSD 116 2261
58 Schaumburg High School Schaumburg Township HSD 211 2259
59 Belleville High School-West Belleville Belleville Twp HSD 201 2255
60 Bartlett High School Bartlett Sd U-46 2238
61 Zion-Benton Twnshp Hi Sch Zion Zion-Benton Twp HSD 126 2225
62 Larkin High School Elgin Sd U-46 2217
63 Comm H S Dist 99 - North H S Downers Grove Chsd 99 2216
64 Victor J Andrew High School Orland Hills Cons HSD 230 2213
65 Glenbard North High School Carol Stream Glenbard Twp HSD 87 2208
66 Prospect High School Mt Prospect Township HSD 214 2202
67 Moline Sr High School Moline Moline-Coal Valley CUSD 40 2164
68 Lincoln Park High School Chicago City of Chicago SD 299 2149
69 Kenwood Academy High School Chicago City of Chicago SD 299 2144
70 Normal Community High School Normal McLean County USD 5 2135
71 Plainfield East High School Plainfield Plainfield SD 202 2128
72 Young Magnet High School Chicago City of Chicago SD 299 2121
73 Plainfield High School Plainfield Plainfield SD 202 2099
74 Niles North High School Skokie Niles Twp HSD 219 2097
75 Mundelein Cons High School Mundelein Mundelein Cons HSD 120 2088
76 Moline Sr High School Moline Moline-Coal Valley CUSD 40 2085
77 Harry D Jacobs High School Algonquin Cusd 300 2075
78 Community High School West Chicago Chsd 94 2055
79 Rolling Meadows High School Rolling Meadows Township HSD 214 2055
80 Auburn High School Rockford Rockford SD 205 2046
81 Buffalo Grove High School Buffalo Grove Township HSD 214 2031
82 Maine West High School Des Plaines Maine Township HSD 207 2026
83 Glenbrook North High School Northbrook Glenbrook HSD 225 2025
84 Alton High School Alton Alton CUSD 11 2023
85 Quincy Sr High School Quincy Quincy SD 172 2007
86 Elk Grove High School Elk Grove Village Township HSD 214 2005
87 St Charles North High School Saint Charles St Charles CUSD 303 2005
88 Harlem High School Machesney Park Harlem UD 122 2004
89 Hoffman Estates High School Hoffman Estates Township HSD 211 1999
90 Thornwood High School South Holland Thornton Twp HSD 205 1994
91 Lincoln-Way Central High School New Lenox Lincoln Way CHSD 210 1993
92 Willowbrook High School Villa Park DuPage HSD 88 1990
93 Thomas Kelly College Preparatory Chicago City of Chicago SD 299 1982
94 John Hersey High School Arlington Heights Township HSD 214 1980
95 Yorkville High School Yorkville Yorkville CUSD 115 1980
96 Jefferson High School Rockford Rockford SD 205 1979
97 Reavis High School Burbank Reavis Twp HSD 220 1977
98 Guilford High School Rockford Rockford SD 205 1970
99 Hononegah Chd High School Rockton Hononegah CHD 207 1968
100 Wheaton North High School Wheaton Cusd 200 1968
101 Lincoln Way West New Lenox Lincoln Way CHSD 210 1967
102 Proviso West High School Hillside Proviso Twp HSD 209 1953
103 Batavia Sr High School Batavia Batavia USD 101 1952
104 Addison Trail High School Addison DuPage HSD 88 1950
105 Bradley-Bourbonnais C High School Bradley Bradley Bourbonnais CHSD 307 1944
106 Collinsville High School Collinsville Collinsville CUSD 10 1940
107 Romeoville High School Romeoville Valley View CUSD 365U 1933
108 Dekalb High School Dekalb DeKalb CUSD 428 1931
109 Streamwood High School Streamwood Sd U-46 1931
110 Argo Community High School Summit Argo CHSD 217 1923
111 Jones College Prep High School Chicago City of Chicago SD 299 1915
112 Thornton Fractnl So High School Lansing Thornton Fractional Twp HSD 215 1911
113 Hubbard High School Chicago City of Chicago SD 299 1904
114 Maine East High School Park Ridge Maine Township HSD 207 1887
115 A B Shepard High Sch (Campus) Palos Heights Chsd 218 1886
116 Wheaton Warrenville South H S Wheaton Cusd 200 1886
117 Granite City High School Granite City Granite City CUSD 9 1883
118 Hampshire High School Hampshire Cusd 300 1882
119 Woodland Middle School Gurnee Woodland CCSD 50 1882
120 Oak Lawn Comm High School Oak Lawn Oak Lawn CHSD 229 1867
121 Pekin Community High School Pekin Pekin CSD 303 1861
122 Geneva Community High School Geneva Geneva CUSD 304 1831
123 Highland Park High School Highland Park Twp HSD 113 1831
124 Libertyville High School Libertyville Chsd 128 1809
125 Mather High School Chicago City of Chicago SD 299 1805
126 Lake Zurich High School Lake Zurich Lake Zurich CUSD 95 1804
127 Grant Community High School Fox Lake Grant CHSD 124 1801
128 Wheeling High School Wheeling Township HSD 214 1788
129 East Leyden High School Franklin Park Leyden CHSD 212 1775
130 Rock Island High School Rock Island Rock Island SD 41 1774
131 Dd Eisenhower High Sch (Campus) Blue Island Chsd 218 1773
132 Juarez Community Academy Hs Chicago City of Chicago SD 299 1772
133 Geneva Community High School Geneva Geneva CUSD 304 1770
134 United Twp High School East Moline United Twp HSD 30 1765
135 West Leyden High School Northlake Leyden CHSD 212 1764
136 Schurz High School Chicago City of Chicago SD 299 1732
137 Proviso East High School Maywood Proviso Twp HSD 209 1722
138 Normal Community West High School Normal McLean County USD 5 1719
139 Rockford East High School Rockford Rockford SD 205 1694
140 Thornton Township High School Harvey Thornton Twp HSD 205 1693
141 Senn High School Chicago City of Chicago SD 299 1682
142 Bloom High School Chicago Heights Bloom Twp HSD 206 1676
143 H L Richards High Sch(Campus) Oak Lawn Chsd 218 1674
144 Riverside Brookfield Twp Hs Riverside Riverside-Brookfield Twp SD 208 1659
145 Von Steuben Metro Science Hs Chicago City of Chicago SD 299 1650
146 Washington G High School Chicago City of Chicago SD 299 1593
147 Cary-Grove Community High School Cary Chsd 155 1591
148 Vernon Hills High School Vernon Hills Chsd 128 1570
149 Kennedy High School Chicago City of Chicago SD 299 1557
150 Deerfield High School Deerfield Twp HSD 113 1555

All Illinois schools

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