South Dakota has about 37 different credit unions with BLACK HILLS FEDERAL CREDIT UNION being the largest credit union in South Dakota having more than $1.90 billion in total assets and over 80,186 members.
| Name | Membership | Total Assets |
|---|---|---|
| ABERDEEN FEDERAL CREDIT UNIONPO BOX 1495 ABERDEEN, SD 57402-1495 | Community credit unions, urban or rural, other than those designated 'low income' | $183,470,125 |
| AVANTI FEDERAL CREDIT UNIONPO BOX 534 WATERTOWN, SD 57201 | Community - Rural District | $28,093,589 |
| BLACK HILLS FEDERAL CREDIT UNIONPO Box 1420 RAPID CITY, SD 57709-1420 | Community - Rural District | $1,898,661,166 |
| CONSUMER'S FEDERAL CREDIT UNIONPO Box 69 GREGORY, SD 57533 | Community credit unions, urban or rural, other than those designated 'low income' | $15,735,832 |
| COTEAU VALLEY FEDERAL CREDIT UNION212 WEST HICKORY SISSETON, SD 57262 | Multiple common bond - other | $15,180,902 |
| DACOTAH FEDERAL CREDIT UNION2990 E HIGHWAY 44 RAPID CITY, SD 57702 | Community credit unions, urban or rural, other than those designated 'low income' | $11,921,890 |
| DAKOTA PLAINS FEDERAL CREDIT UNIONPO Box 389 LEMMON, SD 57638-0389 | Community credit unions, urban or rural, other than those designated 'low income' | $69,106,013 |
| DAKOTA RAIL LINE FEDERAL CREDIT UNION270 4TH ST NE HURON, SD 57350-1614 | Service - Transportation | $4,770,673 |
| DAKOTA STAR FEDERAL CREDIT UNION3122 W SAINT LOUIS ST RAPID CITY, SD 57702-2354 | Community credit unions, urban or rural, other than those designated 'low income' | $34,026,978 |
| DAKOTALAND FEDERAL CREDIT UNION2297 Kansas Ave SE, Suite 1 HURON, SD 57350 | Community - Rural District | $504,529,419 |
| EAST RIVER FEDERAL CREDIT UNIONPO Box 31 MADISON, SD 57042 | Community credit unions, urban or rural, other than those designated 'low income' | $45,876,350 |
| EXPLORERS FEDERAL CREDIT UNION609 W 21ST ST YANKTON, SD 57078 | Community credit unions, urban or rural, other than those designated 'low income' | $96,617,002 |
| FIRST CENTURY FEDERAL CREDIT UNIONPO BOX 85310 SIOUX FALLS, SD 57118 | Multiple common bond - Primarily transportation | $29,728,679 |
| FT RANDALL FEDERAL CREDIT UNIONPO BOX 297 WAGNER, SD 57380 | Community - Rural District | $33,757,762 |
| GOOD SAMARITAN FEDERAL CREDIT UNION4800 W 57TH ST SIOUX FALLS, SD 57108 | Service - Health Care | $26,738,003 |
| HB TELCO FEDERAL CREDIT UNION375 3rd St SW HURON, SD 57350-1924 | Multiple common bond - Primarily communications and utilities | $5,464,866 |
| HEALTHCARE PLUS FEDERAL CREDIT UNIONPO Box 1857 ABERDEEN, SD 57402-1857 | Community credit unions, urban or rural, other than those designated 'low income' | $57,734,336 |
| HIGHMARK FEDERAL CREDIT UNIONPO BOX 2506 RAPID CITY, SD 57709-2506 | Community - Rural District | $194,668,204 |
| HURON AREA EDUCATION FEDERAL CREDIT UNION1855 ARIZONA AVE SW HURON, SD 57350-6582 | Educational | $15,824,718 |
| LAKOTA FEDERAL CREDIT UNIONPO Box 196 KYLE, SD 57752 | Community credit unions, urban or rural, other than those designated 'low income' | $9,995,299 |