Wisconsin has about 121 different credit unions with SUMMIT CREDIT UNION being the largest credit union in Wisconsin having more than $7.96 billion in total assets and over 273,364 members.
| Name | Membership | Total Assets |
|---|---|---|
| MADISON CREDIT UNION949 E Washington Ave MADISON, WI 53703 | State chartered natural person | $61,681,386 |
| MADISON FIRE DEPARTMENT CREDIT UNION1437 Monroe St MADISON, WI 53711-2018 | State chartered natural person | $5,461,939 |
| MARATHON COUNTY EMPLOYEES CREDIT UNION400 E THOMAS ST WAUSAU, WI 54403 | State chartered natural person | $44,530,285 |
| MARINE CREDIT UNION300 2nd St N Ste 400 LA CROSSE, WI 54601 | State chartered natural person | $1,068,456,993 |
| MARSHFIELD MEDICAL CENTER CREDIT UNION302 W Upham St MARSHFIELD, WI 54449-1461 | State chartered natural person | $90,084,387 |
| MCU FINANCIAL CENTER CREDIT UNION1462 S Green Bay Rd MOUNT PLEASANT, WI 53406-4488 | State chartered natural person | $30,244,881 |
| MEADOWLAND CREDIT UNION1040 N Main St SHEBOYGAN FALLS, WI 53085 | State chartered natural person | $34,301,461 |
| MEMBERS FIRST CREDIT UNION3401 W BELTLINE HWY MADISON, WI 53713 | State chartered natural person | $27,861,133 |
| MEMBERS' ADVANTAGE CREDIT UNION1610 Lincoln St WISCONSIN RAPIDS, WI 54494-5920 | State chartered natural person | $180,886,408 |
| N.E.W. CREDIT UNION301 Jackson St OCONTO FALLS, WI 54154-1120 | State chartered natural person | $158,262,300 |
| NEKOOSA CREDIT UNION115 PROSPECT AVENUE NEKOOSA, WI 54457 | State chartered natural person | $28,639,915 |
| NORTHWESTERN MUTUAL CREDIT UNION720 E Wisconsin Ave MILWAUKEE, WI 53202 | State chartered natural person | $254,248,848 |
| NORTHWOODS COMMUNITY CREDIT UNION1224 4th Ave S PARK FALLS, WI 54552-1923 | State chartered natural person | $93,025,190 |
| OAKDALE CREDIT UNION128 E Badger Dr TOMAH, WI 54660 | State chartered natural person | $124,708,230 |
| OSHKOSH COMMUNITY CREDIT UNION250 Pearl Ave OSHKOSH, WI 54901-4834 | State chartered natural person | $19,546,978 |
| OSHKOSH POSTAL EMPLOYEES CREDIT UNION1012 W 20th Ave OSHKOSH, WI 54902-6618 | State chartered natural person | $7,090,826 |
| PARK CITY CREDIT UNION501 S Pine Ridge Ave MERRILL, WI 54452 | State chartered natural person | $376,803,899 |
| PCM CREDIT UNION601 Willard Dr GREEN BAY, WI 54304 | State chartered natural person | $498,320,989 |
| PEOPLES CHOICE CREDIT UNIONPO BOX 567 MEDFORD, WI 54451 | State chartered natural person | $52,475,886 |
| POLICE CREDIT UNION1315 N 23rd St Ste 101 SHEBOYGAN, WI 53081-3180 | State chartered natural person | $950,742 |