| Greenstate Credit Union | North Liberty, IA | $11.19B | 408,586 |
| Veridian Credit Union | Waterloo, IA | $8.90B | 374,001 |
| Dupaco Community Credit Union | Dubuque, IA | $3.63B | 181,196 |
| Collins Community Credit Union | Cedar Rapids, IA | $1.54B | 81,134 |
| Dutrac Community Credit Union | Dubuque, IA | $1.25B | 53,729 |
| Community 1st Credit Union | Ottumwa, IA | $1.10B | 72,400 |
| Community Choice Credit Union | Johnston, IA | $918.6M | 53,881 |
| Corda Credit Union | Cedar Rapids, IA | $748.9M | 27,148 |
| Greater Iowa Credit Union | Ames, IA | $701.5M | 37,958 |
| Ascentra Credit Union | Bettendorf, IA | $593.2M | 42,882 |
| Premier Credit Union | Des Moines, IA | $393.9M | 16,594 |
| MEMBERS1ST Community Credit Union | Marshalltown, IA | $307.5M | 17,626 |
| Citizens Community Credit Union | Fort Dodge, IA | $253.6M | 13,995 |
| The Family Credit Union | Davenport, IA | $248.8M | 19,735 |
| Cedar Falls Community Credit Union | Cedar Falls, IA | $242.7M | 8,868 |
| Financial Plus Credit Union | West Des Moines, IA | $239.6M | 11,608 |
| Employees Credit Union | Estherville, IA | $200.2M | 9,142 |
| Aim Credit Union | Dubuque, IA | $199.1M | 14,204 |
| First Credit Union | Hiawatha, IA | $177.4M | 10,057 |
| 1st Gateway Credit Union | Camanche, IA | $171.9M | 10,317 |
| Cent Credit Union | Mason City, IA | $165.9M | 11,472 |
| Telco Triad Community Credit Union | Sioux City, IA | $163.2M | 16,018 |
| North Star Community Credit Union | Cherokee, IA | $156.5M | 12,254 |
| Affinity Credit Union | Des Moines, IA | $150.9M | 12,302 |
| North Iowa Community Credit Union | Mason City, IA | $128.5M | 11,339 |
| River Valley Credit Union | Ames, IA | $118.0M | 6,771 |
| Advantage Credit Union | Newton, IA | $106.5M | 7,154 |
| Serve Credit Union | Des Moines, IA | $100.9M | 4,977 |
| Midland Credit Union | Urbandale, IA | $100.5M | 6,556 |
| Members Community Credit Union | Muscatine, IA | $98.5M | 8,059 |
| First Class Community Credit Union | West Des Moines, IA | $96.5M | 6,870 |
| Journey Credit Union | Des Moines, IA | $96.2M | 5,153 |
| Peoples Credit Union | Webster City, IA | $93.6M | 5,644 |
| Power Co-Op Employees Credit Union | Humboldt, IA | $83.6M | 2,850 |
| Des Moines Metro Credit Union | Des Moines, IA | $75.0M | 7,007 |
| Lennox Employees Credit Union | Marshalltown, IA | $72.7M | 6,669 |
| Metco Credit Union | Cedar Rapids, IA | $58.2M | 3,282 |
| 5 Star Community Credit Union | Mount Pleasant, IA | $54.9M | 6,711 |
| Capitol View Credit Union | Des Moines, IA | $46.7M | 1,758 |
| Sioux Valley Community Credit Union | Sioux City, IA | $43.2M | 3,779 |
| Fort Dodge Family Credit Union | Fort Dodge, IA | $42.4M | 3,523 |
| Meridian Credit Union | Ottumwa, IA | $35.1M | 2,113 |
| Holy Ghost Parish Credit Union | Dubuque, IA | $34.2M | 869 |
| Iowa Heartland Credit Union | Mason City, IA | $31.2M | 3,350 |
| River Community Credit Union | Ottumwa, IA | $30.4M | 3,669 |
| Casebine Community Credit Union | Burlington, IA | $29.4M | 3,150 |
| Aegis Credit Union | Clinton, IA | $27.2M | 3,722 |
| Family Community Credit Union | Charles City, IA | $26.4M | 2,032 |
| Unite Credit Union | Cedar Falls, IA | $23.5M | 1,574 |
| Quaker Oats Credit Union | Cedar Rapids, IA | $13.4M | 1,293 |
| North Western Employees Credit Union | Council Bluffs, IA | $10.3M | 1,194 |
| Industrial Employees Credit Union | Centerville, IA | $9.3M | 863 |
| Teamsters Local #238 Credit Union | Cedar Rapids, IA | $7.7M | 1,721 |
| Ace Credit Union | Mason City, IA | $7.6M | 764 |
| Du Pont Employees Credit Union | Fort Madison, IA | $6.6M | 628 |
| Allen Hospital Personnel Credit Union | Waterloo, IA | $5.8M | 843 |
| Polk County Credit Union | Des Moines, IA | $5.5M | 650 |
| Burlington Municipal Employees Credit Union | Burlington, IA | $4.7M | 643 |
| Gas & Electric Employees Credit Union | Mason City, IA | $4.4M | 365 |
| Dubuque Postal Employees Credit Union | Dubuque, IA | $4.4M | 297 |
| Des Moines Fire Department Credit Union | Des Moines, IA | $3.4M | 940 |
| Lee County Credit Union | Keokuk, IA | $3.3M | 529 |
| Waterloo Firemen's Credit Union | Waterloo, IA | $2.8M | 322 |
| S E C U Credit Union | Keokuk, IA | $1.7M | 726 |
| St. Athanasius Credit Union | Jesup, IA | $499K | 226 |
| St. Ludmila S Credit Union | Cedar Rapids, IA | $375K | 98 |