Wisconsin has about 121 different credit unions with SUMMIT CREDIT UNION being the largest credit union in Wisconsin having more than $6.95 billion in total assets and over 257,368 members.
| Name | Membership | Total Assets |
|---|---|---|
| MADISON CREDIT UNION949 E Washington Ave MADISON, WI 53703 | State chartered natural person | $58,754,293 |
| MADISON FIRE DEPARTMENT CREDIT UNION1437 Monroe St MADISON, WI 53711-2018 | State chartered natural person | $5,091,222 |
| MARATHON COUNTY EMPLOYEES CREDIT UNION400 E THOMAS ST WAUSAU, WI 54403 | State chartered natural person | $39,185,372 |
| MARINE CREDIT UNION300 2nd St N Ste 400 LA CROSSE, WI 54601 | State chartered natural person | $1,046,027,263 |
| MARSHFIELD MEDICAL CENTER CREDIT UNION302 W Upham St MARSHFIELD, WI 54449-1461 | State chartered natural person | $86,176,319 |
| MCU FINANCIAL CENTER CREDIT UNION1462 S Green Bay Rd MOUNT PLEASANT, WI 53406-4488 | State chartered natural person | $28,919,281 |
| MEADOWLAND CREDIT UNION1040 N Main St SHEBOYGAN FALLS, WI 53085 | State chartered natural person | $31,630,096 |
| 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 | $181,844,551 |
| N.E.W. CREDIT UNION301 Jackson St OCONTO FALLS, WI 54154-1120 | State chartered natural person | $150,380,477 |
| NEKOOSA CREDIT UNION115 Prospect Ave NEKOOSA, WI 54457-1226 | State chartered natural person | $27,882,529 |
| NORTHWESTERN MUTUAL CREDIT UNION720 E Wisconsin Ave MILWAUKEE, WI 53202 | State chartered natural person | $235,468,955 |
| NORTHWOODS COMMUNITY CREDIT UNION1224 4th Ave S PARK FALLS, WI 54552-1923 | State chartered natural person | $89,100,475 |
| OAKDALE CREDIT UNION128 E Badger Dr TOMAH, WI 54660 | State chartered natural person | $111,184,816 |
| OSHKOSH COMMUNITY CREDIT UNION250 Pearl Ave OSHKOSH, WI 54901-4834 | State chartered natural person | $20,766,720 |
| OSHKOSH POSTAL EMPLOYEES CREDIT UNION1012 W 20th Ave OSHKOSH, WI 54902-6618 | State chartered natural person | $7,098,945 |
| PARK CITY CREDIT UNION501 S Pine Ridge Ave MERRILL, WI 54452 | State chartered natural person | $347,611,179 |
| PCM CREDIT UNION601 Willard Dr GREEN BAY, WI 54304 | State chartered natural person | $450,113,411 |
| 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 | $946,803 |