| 1 | Alliant Credit UnionChicago | $20.01B | 953,370 | 1 |
| 2 | Citizens Equity First Credit UnionPeoria | $8.5B | 423,526 | 35 |
| 3 | Baxter Credit UnionVernon Hills | $6.4B | 372,377 | 41 |
| 4 | State Farm Federal Credit UnionBloomington | $5.71B | 113,388 | 1 |
| 5 | Consumers Credit UnionLake Forest | $4.64B | 287,338 | 25 |
| 6 | Credit Union 1Lombard | $2.87B | 172,066 | 51 |
| 7 | I. H. Mississippi Valley Credit UnionMoline | $2.3B | 149,553 | 15 |
| 8 | Empeople Credit UnionMoline | $2.26B | 74,228 | 35 |
| 9 | Scott Credit UnionEdwardsville | $1.85B | 131,312 | 24 |
| 10 | Great Lakes Credit UnionBannockburn | $1.43B | 100,624 | 21 |
| 11 | Vibrant Credit UnionMoline | $1.19B | 69,887 | 4 |
| 12 | Selfreliance Federal Credit UnionChicago | $1.19B | 47,153 | 16 |
| 13 | Abbott Laboratories Credit UnionGurnee | $1.14B | 32,983 | 11 |
| 14 | 1st Midamerica Credit UnionBethalto | $1.01B | 64,586 | 10 |
| 15 | Alero Financial Credit UnionElgin | $954M | 65,426 | 16 |
| 16 | Numark Credit UnionJoliet | $932M | 62,044 | 14 |
| 17 | University of Illinois Community Credit UnionChampaign | $765M | 65,320 | 7 |
| 18 | R.i.a. Federal Credit UnionRock Island | $749M | 46,841 | 13 |
| 19 | National Police Federal Credit UnionChicago | $621M | 42,634 | 8 |
| 20 | Financial Plus Credit UnionOttawa | $607M | 46,216 | 5 |
| 21 | Dupage Credit UnionNaperville | $600M | 49,845 | 5 |
| 22 | Siu Credit UnionCarbondale | $591M | 46,485 | 7 |
| 23 | Heartland Credit UnionSpringfield | $574M | 35,845 | 3 |
| 24 | Revity Credit UnionGranite City | $527M | 37,037 | 8 |
| 25 | Land of Lincoln Credit UnionDecatur | $499M | 35,747 | 15 |
| 26 | Healthcare Associates Credit UnionLisle | $482M | 29,473 | 4 |
| 27 | Earthmover Credit UnionAurora | $472M | 31,326 | 7 |
| 28 | Streator Onized Credit UnionStreator | $423M | 38,405 | 7 |
| 29 | Iaa Credit UnionBloomington | $415M | 18,281 | 2 |
| 30 | Partnership Financial Credit UnionMorton Grove | $403M | 14,456 | 8 |
| 31 | Abri Credit UnionRomeoville | $381M | 27,813 | 9 |
| 32 | Community Trust Credit UnionGurnee | $336M | 13,356 | 5 |
| 33 | First Northern Credit UnionChicago | $333M | 21,253 | 4 |
| 34 | Decatur Earthmover Credit UnionForsyth | $310M | 20,450 | 6 |
| 35 | Membersalliance Credit UnionLoves Park | $304M | 22,262 | 5 |
| 36 | Illiana Financial Credit UnionCalumet City | $264M | 20,860 | 5 |
| 37 | Illinois State Credit UnionNormal | $249M | 18,999 | 5 |
| 38 | Staley Credit UnionDecatur | $228M | 17,269 | 6 |
| 39 | Midwest Members Credit UnionWood River | $227M | 17,463 | 3 |
| 40 | Catholic & Community Credit UnionShiloh | $223M | 13,281 | 3 |
| 41 | Cooperative Choice Network Credit UnionPeoria | $206M | 12,369 | 5 |
| 42 | Vicinity Credit UnionChicago | $204M | 17,491 | 3 |
| 43 | Cornerstone Credit UnionFreeport | $177M | 12,452 | 3 |
| 44 | Rock Valley Credit UnionLoves Park | $174M | 15,839 | 5 |
| 45 | United Community Credit UnionQuincy | $134M | 10,467 | 3 |
| 46 | Gas and Electric Credit UnionRock Island | $132M | 5,547 | 2 |
| 47 | Commonwealth Credit UnionBourbonnais | $128M | 9,731 | 1 |
| 48 | Illinois State Police Federal Credit UnionSpringfield | $127M | 5,997 | 1 |
| 49 | Central Credit Union of IllinoisBellwood | $123M | 10,172 | 2 |
| 50 | Illinois Educators Credit UnionSpringfield | $120M | 10,026 | 2 |
| 51 | Landmark Credit UnionDanville | $119M | 9,455 | 3 |
| 52 | A.a.e.c. Credit UnionArlington Heigh | $119M | 4,538 | 1 |
| 53 | Members "first" Community Credit UnionQuincy | $112M | 7,545 | 1 |
| 54 | Chicago Firefighter's Credit UnionChicago | $92.9M | 6,495 | 1 |
| 55 | Taylorville Community Credit UnionTaylorville | $90.8M | 7,413 | 4 |
| 56 | The Credit Union for AllBloomington | $89.57M | 8,027 | 1 |
| 57 | Metro Federal Credit UnionArlington Heigh | $80.02M | 3,310 | 2 |
| 58 | Select Employees Credit UnionSterling | $78.57M | 5,876 | 1 |
| 59 | Midwest Coalition of Labor Credit UnionCountryside | $77.13M | 8,676 | 1 |
| 60 | Education Personnel Federal Credit UnionDanville | $74.34M | 4,270 | 3 |
| 61 | Gale Credit UnionGalesburg | $73.73M | 4,770 | 3 |
| 62 | Northwest Community Credit UnionMorton Grove | $66.6M | 2,365 | 4 |
| 63 | United Equity Credit UnionDecatur | $66.19M | 5,645 | 2 |
| 64 | Moline Municipal Credit UnionMoline | $66.03M | 2,910 | 2 |
| 65 | Acme Continental Credit UnionRiverdale | $62.49M | 4,816 | 1 |
| 66 | Fieldstone Credit UnionBradley | $61.67M | 4,843 | 1 |
| 67 | New Century Federal Credit UnionJoliet | $60.21M | 4,567 | 2 |
| 68 | Access Credit UnionBroadview | $57.93M | 4,804 | 1 |
| 69 | Galesburg Burlington Credit UnionGalesburg | $56.79M | 3,664 | 1 |
| 70 | Altonized Community Federal Credit UnionAlton | $53.05M | 5,606 | 2 |
| 71 | Riverside Community Credit UnionKankakee | $51.98M | 3,544 | 2 |
| 72 | Maroon Financial Credit UnionChicago | $51.93M | 6,949 | 2 |
| 73 | Bloomington Municipal Credit UnionBloomington | $45.71M | 2,250 | 2 |
| 74 | Fox Valley Credit UnionAurora | $45.51M | 3,417 | 3 |
| 75 | Streator Community Credit UnionStreator | $42.28M | 2,402 | 1 |
| 76 | Northwest Municipal Federal Credit UnionDes Plaines | $41.37M | 1,774 | 1 |
| 77 | Planites Credit UnionChicago | $39.8M | 3,897 | 1 |
| 78 | Blackhawk Area Credit UnionSavanna | $39.14M | 3,791 | 3 |
| 79 | Sherwin Williams Emp. Credit UnionSouth Holland | $36.98M | 2,976 | 1 |
| 80 | Illinois Valley Credit UnionPeru | $36.29M | 4,245 | 2 |
| 81 | Service Plus Credit UnionMoline | $34.73M | 1,596 | 1 |
| 82 | Canals & Trails Credit UnionLockport | $34.24M | 3,103 | 2 |
| 83 | Area Educational Credit UnionMattoon | $33.75M | 2,325 | 1 |
| 84 | Siue Credit UnionEdwardsville | $30.73M | 1,634 | 1 |
| 85 | Elca Federal Credit UnionChicago | $30.08M | 2,389 | 1 |
| 86 | River To River Credit UnionVienna | $29.71M | 2,483 | 2 |
| 87 | Kaskaskia Valley Community Credit UnionCentralia | $29.37M | 3,680 | 3 |
| 88 | Community Plus Federal Credit UnionRantoul | $28.08M | 3,565 | 1 |
| 89 | Chicago Post Office Employees Credit UnionChicago | $27.91M | 4,921 | 3 |
| 90 | 2 Rivers Area Credit UnionKankakee | $27.74M | 4,002 | 1 |
| 91 | Elite Community Credit UnionBourbonnais | $26.49M | 2,254 | 2 |
| 92 | Aurora Policemen Credit UnionAurora | $26.32M | 1,613 | 1 |
| 93 | Central Illinois Credit UnionChampaign | $26.08M | 3,566 | 2 |
| 94 | Western Illinois School Employees Credit UnionQuincy | $24.02M | 1,691 | 1 |
| 95 | Tee-Pak Credit UnionDanville | $23.78M | 2,276 | 1 |
| 96 | Rockford Municipal Employees Credit UnionRockford | $23.64M | 2,076 | 1 |
| 97 | Advantage One Credit UnionMorrison | $23.54M | 2,382 | 1 |
| 98 | Generations Credit UnionRockford | $22.44M | 2,064 | 4 |
| 99 | Chicago Firemans Assoc Credit UnionChicago | $21.45M | 3,016 | 2 |
| 100 | Harvard Community Credit UnionHarvard | $21.14M | 3,291 | 2 |
| 101 | Kone Employees Credit UnionMoline | $20.73M | 1,728 | 1 |
| 102 | Bloomington Postal Employees Credit UnionBloomington | $20.42M | 1,341 | 1 |
| 103 | Northern Illinois Federal Credit UnionDekalb | $18M | 2,210 | 1 |
| 104 | Dupage County Employees Credit UnionWheaton | $17.92M | 2,299 | 1 |
| 105 | 77th Street Depot Federal Credit UnionChicago | $17.72M | 4,651 | 1 |
| 106 | Linxus Credit UnionMachesney Park | $17.46M | 2,163 | 1 |
| 107 | Cbi Federal Credit UnionPlainfield | $17.42M | 1,146 | 2 |
| 108 | Ambraw Federal Credit UnionLawrenceville | $16.68M | 1,934 | 2 |
| 109 | Ottawa Hiway Credit UnionOttawa | $16.28M | 1,197 | 3 |
| 110 | Peoria Postal Employees Credit UnionPeoria | $14.11M | 1,178 | 3 |
| 111 | Blaw-Knox Credit UnionMattoon | $13.45M | 1,798 | 1 |
| 112 | Springfield City Employees Credit UnionSpringfield | $12.78M | 1,250 | 1 |
| 113 | Financial Partners Credit UnionSpringfield | $12.73M | 1,053 | 1 |
| 114 | Maternity B.v.m. Credit UnionBourbonnais | $11.34M | 1,071 | 1 |
| 115 | Paris Hi-Way Credit UnionParis | $11.3M | 851 | 2 |
| 116 | Joliet Municipal Employees Federal Credit UnionJoliet | $11.12M | 865 | 1 |
| 117 | South Shop Federal Credit UnionAlsip | $11.08M | 1,301 | 1 |
| 118 | Funeral Service Credit UnionSpringfield | $10.71M | 680 | 1 |
| 119 | Chicago's Bravest Credit UnionChicago | $10.58M | 1,279 | 1 |
| 120 | Kankakee Federation of Teachers Credit UnionKankakee | $10.56M | 1,300 | 1 |
| 121 | Anco Community Credit UnionLa Salle | $10.23M | 1,458 | 1 |
| 122 | Evergreen Park Schools Federal Credit UnionEvergreen Park | $10.02M | 973 | 1 |
| 123 | Chicago Area Office Federal Credit UnionChicago | $9.44M | 1,092 | 1 |
| 124 | Metropolitan "l" Federal Credit UnionOak Park | $9.31M | 891 | 1 |
| 125 | Cta-74th Street Depot Federal Credit UnionChicago | $8.56M | 805 | 2 |
| 126 | Pontiac Dwight Prison Employs Credit UnionPontiac | $8.33M | 917 | 2 |
| 127 | Joliet Firefighters Credit UnionJoliet | $8.31M | 590 | 3 |
| 128 | Burlington Northern Santa Fe Railwy Credit UnionCicero | $8.2M | 1,641 | 1 |
| 129 | State Employees Community Credit UnionAlton | $6.67M | 1,029 | 1 |
| 130 | Peoria Hiway Credit UnionPeoria | $6.59M | 665 | 1 |
| 131 | Molex Employees Federal Credit UnionLisle | $6.53M | 1,116 | 2 |
| 132 | Decatur Postal Credit UnionDecatur | $6.44M | 492 | 1 |
| 133 | Peoria City Employees Credit UnionPeoria | $6.41M | 1,012 | 1 |
| 134 | for Members Only Federal Credit UnionChicago | $6.32M | 12,763 | 1 |
| 135 | Peoria Bell Credit UnionPeoria | $6M | 616 | 1 |
| 136 | Effingham Highway Credit UnionEffingham | $5.89M | 988 | 1 |
| 137 | South Side Community Federal Credit UnionChicago | $5.69M | 1,420 | 1 |
| 138 | Carbondale Highway Credit UnionCarbondale | $5.62M | 677 | 1 |
| 139 | A.s.h. Employees Credit UnionAnna | $5.58M | 1,176 | 2 |
| 140 | Decatur Policemen Credit UnionDecatur | $5.27M | 384 | 1 |
| 141 | I.B.E.W. Local #146 Credit UnionDecatur | $5.02M | 658 | 1 |
| 142 | Northside L Federal Credit UnionBroadview | $4.97M | 790 | 1 |
| 143 | Urbana Municipal Employees Credit UnionUrbana | $4.9M | 772 | 1 |
| 144 | Oak Lawn Municipal Employees Credit UnionOak Lawn | $4.79M | 846 | 1 |
| 145 | Peoria Fire Fighters Credit UnionPeoria | $4.59M | 350 | 2 |
| 146 | Normal City Employees Federal Credit UnionNormal | $4.53M | 595 | 1 |
| 147 | Chicago Avenue Garage Federal Credit UnionChicago | $4.37M | 554 | 3 |
| 148 | Trinity U.c.c. Federal Credit UnionChicago | $4.17M | 673 | 2 |
| 149 | Western Springs Federal Credit UnionWestern Springs | $3.93M | 477 | 1 |
| 150 | Springfield Firefighters Credit UnionSpringfield | $3.37M | 374 | 1 |
| 151 | Hershey Robinson Employees Credit UnionRobinson | $3.29M | 723 | 2 |
| 152 | Williamson County Catholic Credit UnionHerrin | $2.85M | 621 | 1 |
| 153 | Aurora Firefighters' Credit UnionAurora | $2.69M | 445 | 1 |
| 154 | N.i.c.e. Federal Credit UnionGeneva | $2.64M | 352 | 1 |
| 155 | Mercer Credit UnionAledo | $2.63M | 416 | 1 |
| 156 | B.e.a. Credit UnionBethalto | $2.37M | 419 | 2 |
| 157 | Salem School System Credit UnionSalem | $2.24M | 359 | 1 |
| 158 | Quincy Postal Employees Credit UnionQuincy | $2.21M | 305 | 1 |
| 159 | Haulpak Federal Credit UnionPeoria | $2.03M | 483 | 1 |
| 160 | Israel Methcomm Federal Credit UnionChicago | $1.99M | 235 | 1 |
| 161 | Evanston Firemens Credit UnionEvanston | $1.99M | 150 | 1 |
| 162 | Aurora Postal Employees Credit UnionAurora | $1.93M | 438 | 1 |
| 163 | Taylorville School Employees Credit UnionTaylorville | $1.75M | 401 | 2 |
| 164 | Park Manor Christian Church Credit UnionChicago | $1.48M | 275 | 2 |
| 165 | College and University Credit UnionChicago | $1.4M | 363 | 1 |
| 166 | Ethicon Suture Credit UnionRiver Forest | $1.23M | 485 | 1 |
| 167 | Clifford-Jacobs Employees Credit UnionChampaign | $1.17M | 159 | 2 |
| 168 | Fellowship Baptist Church Credit UnionChicago | $1.04M | 367 | 1 |
| 169 | Reavis - Stickney Credit UnionBurbank | $850K | 269 | 1 |
| 170 | Mea Credit UnionMonticello | $806K | 121 | 2 |
| 171 | Smartchoice Credit UnionSpring Valley | $787K | 242 | 1 |
| 172 | C T A F C Federal Credit UnionChicago | $756K | 301 | 1 |
| 173 | St. Gregory Parish Credit UnionChicago | $683K | 195 | 1 |
| 174 | St. Mark Credit UnionChicago | $472K | 159 | 2 |
| 175 | Unified Homeowners of Illinois Federal Credit UnionChicago | $460K | 302 | 1 |
| 176 | Alton Municipal Employees Federal Credit UnionAlton | $436K | 270 | 1 |
| 177 | Mt. Zion Credit UnionZion | $428K | 199 | 1 |
| 178 | M.w.p.h. Grand Lodge of Illinois Federal Credit UnionChicago | $418K | 175 | 1 |
| 179 | Services Credit UnionNaperville | $407K | 2,705 | 1 |
| 180 | St. Martin De Porres Parish Federal Credit UnionChicago | $383K | 152 | 2 |
| 181 | Shiloh Englewood Federal Credit UnionChicago | $344K | 139 | 1 |
| 182 | St. Helena Parish Credit UnionChicago | $324K | 149 | 2 |
| 183 | Gideon Federal Credit UnionWaukegan | $269K | 280 | 5 |
| 184 | Pilgrim Baptist Credit UnionChicago | $263K | 137 | 1 |
| 185 | Berean Credit UnionChicago | $190K | 149 | 1 |
| 186 | Community Federal Credit UnionChicago | $116K | 154 | 1 |
| 187 | Imperial Credit UnionSpringfield | $76.08K | 192 | 1 |
| 188 | Bethel A.m.e. Church Credit UnionChicago | $50.35K | 88 | 1 |