Summit Credit Union Reviews: Members, Assets and Branches

Summit Credit Union is an NCUA-insured credit union serving 278,241 members, with $8.3 billion in assets and 57 branches. All figures come from its quarterly Call Report.

Total assets
$8.3 billion
Total deposits
$6.7 billion
Members
278,241
Founded
1,935

About Summit Credit Union

Summit Credit Union is a mid-sized institution, headquartered in Madison, Wisconsin. Deposits are insured by the NCUA up to $250,000 per depositor, per ownership category. The figures on this page come from the institution's own regulatory filing dated 2026-03-31, not from marketing material.

This credit union reports $8.3 billion in total assets, $6.7 billion in deposits and 57 locations in 1 state. It serves 278,241 members.

Summit Credit Union locations

  • 871 Commerce Ave, Baraboo, WI 53913
  • 104 Frances Ln, Beaver Dam, WI 53916
  • 920 S Moorland Rd, Brookfield, WI 53005
  • W61n301 Washington Ave, Cedarburg, WI 53012
  • 1709 Landmark Dr, Cottage Grove, WI 53527
  • 2424 Rimrock Rd, Fitchburg, WI 53713
  • 2939 S Fish Hatchery Rd, Fitchburg, WI 53711
  • 116 N Main St, Fond Du Lac, WI 54935
  • 7750 S Lovers Lane Rd, Franklin, WI 53132
  • 2673 Lineville Rd, Green Bay, WI 54313
  • 2350 S Oneida St, Green Bay, WI 54304
  • 5255 S 76th St, Greendale, WI 53129
  • 1323 Bell Ave, Hartford, WI 53027
  • 2330 Kennedy Rd, Janesville, WI 53545
  • 6310 Green Bay Rd, Kenosha, WI 53142
  • 141 E Tyranena Park Rd, Lake Mills, WI 53551
  • 401 S Yellowstone Dr, Madison, WI 53719
  • 5810 Mineral Point Rd, Madison, WI 53705
  • 702 Pflaum Rd, Madison, WI 53716
  • 201 S Gammon Rd, Madison, WI 53717
  • 4800 American Pkwy, Madison, WI 53718
  • 2348 S Park St, Madison, WI 53713
  • 670 W Washington Ave, Madison, WI 53703
  • 645 Junction Rd, Madison, WI 53717

Showing 24 of 57 locations in Wisconsin.

What the Summit Credit Union reviews figures actually show

Every figure on this page for Summit Credit Union is a median, not an average, which matters more than it sounds.

A median is the midpoint: half of the institution sits above it and half below. Averages get dragged around by a handful of extreme values — one very expensive property, one unusually large loan, one graduate earning far more than their classmates — so a median is the safer number to plan against. Members of 278,241 and total assets of $8.3 billion.

Use them to frame opening a savings, checking or CD account rather than to settle it. Your circumstances — credit, timing, the specific offer in front of you — move the outcome more than the local midpoint does.

Why the spread around Summit Credit Union matters

Context does most of the work here. A number is only high or low next to something else, so we publish Summit Credit Union and how it sits inside Wisconsin against a wider benchmark on the same measure. Branch count of 57 and headquarters of Madison, Wisconsin.

A difference of a few percent is inside the survey's own margin of error. A difference of a quarter or more is real, and it normally reflects the housing mix, the dominant local industries, or how much of the population is retired rather than working.

That is why a single figure should never carry a decision on its own. Read two or three measures together — what comes in, what housing costs, what is left — and the picture stops being ambiguous.

Putting Summit Credit Union next to the alternatives

Comparison is the fastest way to tell a genuinely unusual institution from an ordinary one. We benchmark Summit Credit Union against Wisconsin and against the national picture on the same definitions, in the same period, so the difference you see is a real difference rather than an artefact of two datasets disagreeing.

Watch the denominator whenever a comparison surprises you. Whether a rate is calculated on all applications or only completed ones, on every unit or only those on the market, changes the answer more than the local market does.

Where a comparison would mislead, we leave it out instead of filling the gap. A blank means the source did not publish a reliable estimate for that institution, and inventing one would be worse than showing less.

What to check before you commit

None of this needs a spreadsheet. It needs the discipline of checking the same handful of things every time, whether you are opening a savings, checking or CD account for the first time or the fifth.

  • Confirm the rate you were quoted is the standard rate, not a promotional tier that resets after a few months.
  • Check the minimum balance and the monthly maintenance fee, which can quietly outweigh the interest earned.
  • Check the fee schedule and the fine print, not the headline rate — that is where the real cost usually hides.
  • Ask what the number looks like in a bad year, not an average one, and make sure the plan still holds.
  • Write down the monthly number you can genuinely cover, not the maximum a lender or admissions office says you qualify for.
  • Compare at least three offers. Pricing on the same product varies more between providers than most people expect, and the gap is yours to keep.

Common questions

How current is the Summit Credit Union reviews data?

The figures come from the 2026-03-31 release of the NCUA Quarterly Call Report, and we refresh the page when a new one is published. Public datasets run a reporting lag of several months to two years, so the latest available period is not the same as today.

Why does another site show a different number for Summit Credit Union?

Almost always because it is measuring something slightly different, or using an earlier release. Check the definition and the period before assuming one of the two is wrong; quarterly regulatory filings publish several near-identical measures with meaningfully different scopes.

Can I use this for opening a savings, checking or CD account?

As a benchmark, yes — it tells you whether an offer or an asking price is normal for this institution. As a substitute for your own quote or estimate, no. Members of 278,241.

How we built this page

The page is assembled from quarterly regulatory filings, specifically the NCUA Quarterly Call Report (2026-03-31). Nothing here is modelled from a proprietary black box: every figure traces to a published record, and where we derive a ratio we show both inputs so the arithmetic can be checked.

Three limits are worth stating plainly. Survey estimates carry a margin of error that widens as the area gets smaller. Reporting lags mean the most recent period on file is not the present. And a median cannot describe the tails — the cheapest and most expensive ends of any institution sit outside it by definition.

Where a source revises a figure, the revised value replaces the old one rather than sitting alongside it, so the page always reflects the current official position. If you spot a number that looks wrong, it is worth telling us — corrections get made against the source record, not by guesswork.

Source: NCUA Quarterly Call Report; NCUA Credit Union Branch Information. Latest observation 2026-03-31.

Every figure above comes from this credit union's own federal record: NCUA record, charter #67190.

Next steps with Summit Credit Union