RANKING ·
Largest net interest margin improvement in Wisconsin
49 of 98 credit unions in Wisconsin that filed for the quarter ended June 30, 2026 are ranked. At least $100 million in total assets and a comparable quarter a year earlier. Institutions with equal values share a rank. Source: NCUA Call Report data.
| Rank | Institution | Headquarters | Net interest margin, change over 12 months | Total assets |
|---|---|---|---|---|
| 1 | Verve, A Credit Union | Oshkosh, WI | +44 bps | $1.6 billion |
| 2 | Cloverbelt Credit Union | Wausau, WI | +37 bps | $354 million |
| 3 | Members' Advantage Credit Union | Wisconsin Rapid, WI | +36 bps | $185 million |
| 4 | Firefighters Credit Union | Onalaska, WI | +36 bps | $133 million |
| 5 | Fort Community Credit Union | Fort Atkinson, WI | +35 bps | $450 million |
| 6 | Pcm Credit Union | Green Bay, WI | +32 bps | $515 million |
| 7 | Fox Communities Credit Union | Appleton, WI | +30 bps | $3.4 billion |
| 8 | Royal Credit Union | Eau Claire, WI | +28 bps | $5.9 billion |
| 9 | Altra Federal Credit Union | Onalaska, WI | +27 bps | $3.1 billion |
| 10 | Community First Credit Union | Appleton, WI | +26 bps | $6.8 billion |
| 11 | Westconsin Credit Union | Menomonie, WI | +24 bps | $2.2 billion |
| 12 | Unitedone Credit Union | Manitowoc, WI | +23 bps | $348 million |
| 13 | Glacier Hills Credit Union | West Bend, WI | +21 bps | $286 million |
| 14 | Co-Op Credit Union | Black River Fal, WI | +20 bps | $627 million |
| 15 | Guardian Credit Union | Oak Creek, WI | +17 bps | $294 million |
| 16 | Prospera Credit Union | Appleton, WI | +17 bps | $379 million |
| 17 | Governmental Employees Credit Union | La Crosse, WI | +17 bps | $122 million |
| 18 | Kohler Credit Union | Sheboygan, WI | +16 bps | $776 million |
| 19 | Westby Co-Op Credit Union | Westby, WI | +12 bps | $1.0 billion |
| 20 | Educators Credit Union | Racine, WI | +12 bps | $4.0 billion |
| 21 | First Community CU of Beloit | Beloit, WI | +11 bps | $410 million |
| 22 | Northwestern Mutual Credit Union | Milwaukee, WI | +11 bps | $286 million |
| 23 | Simplicity Credit Union | Marshfield, WI | +9 bps | $547 million |
| 24 | Landmark Credit Union | Brookfield, WI | +8 bps | $7.9 billion |
| 25 | Summit Credit Union | Madison, WI | +7 bps | $8.5 billion |
| 26 | Premier Financial Credit Union | New Holstein, WI | +3 bps | $132 million |
| 27 | Capital Credit Union | Green Bay, WI | +2 bps | $2.8 billion |
| 28 | Winnebago Community Credit Union | Oshkosh, WI | +2 bps | $176 million |
| 29 | Prime Financial Credit Union | Cudahy, WI | 0 bps | $161 million |
| 30 | Shoreline Credit Union | Two Rivers, WI | 0 bps | $160 million |
| 31 | Unison Credit Union | Kaukauna, WI | 0 bps | $394 million |
| 32 | University of Wisconsin Credit Union | Madison, WI | -1 bps | $6.7 billion |
| 33 | Ripco Credit Union | Rhinelander, WI | -1 bps | $189 million |
| 34 | Sentry Credit Union | Stevens Point, WI | -1 bps | $173 million |
| 35 | Covantage Credit Union | Antigo, WI | -2 bps | $4.2 billion |
| 36 | Blackhawk Community Credit Union | Janesville, WI | -2 bps | $947 million |
| 37 | 1st Community Credit Union | Sparta, WI | -2 bps | $288 million |
| 38 | Park City Credit Union | Merrill, WI | -2 bps | $397 million |
| 39 | N.E.W. Credit Union | Oconto Falls, WI | -4 bps | $178 million |
| 40 | Valley Communities Credit Union | Mosinee, WI | -5 bps | $307 million |
| 41 | Heartland Credit Union | Madison, WI | -7 bps | $667 million |
| 42 | Arcadia Credit Union | Arcadia, WI | -13 bps | $144 million |
| 43 | Superior Choice Credit Union | Superior, WI | -21 bps | $730 million |
| 44 | Indianhead Credit Union | Spooner, WI | -24 bps | $101 million |
| 45 | Southern Lakes Credit Union | Kenosha, WI | -25 bps | $113 million |
| 46 | Marine Credit Union | La Crosse, WI | -28 bps | $1.1 billion |
| 47 | Tomah Area Credit Union | Tomah, WI | -33 bps | $126 million |
| 48 | Connexus Credit Union | Wausau, WI | -34 bps | $4.1 billion |
| 49 | Oakdale Credit Union | Oakdale, WI | -38 bps | $132 million |
Rankings sort one published measure; they are not an overall judgment of any institution. Methodology · All rankings