Stoppenbach Credit Union Jefferson, Wisconsin
Stoppenbach Credit Union is a state-chartered credit union headquartered in Jefferson, WI, established in 1937 (NCUA charter 66565), and it is regulated and insured by the NCUA. At Q2 2026 it reported 508 members and total assets of $1.8M (down 9.4% from Q2 2025), the 96th largest of 98 credit unions headquartered in Wisconsin. Its net worth ratio was 21.16% at Q2 2026, in the well capitalized band.
Also written as Stoppenbach CU
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Data as of · sourced from NCUA 5300 call reports. How we update
- Charter
- State-chartered credit union
- Regulator
- NCUA
- Deposit insurance
- NCUA (NCUSIF)
- NCUA charter number
- 66565
- Headquarters
- Jefferson, WI
- Established
- 1937
- Total assets, Q2 2026
- $1.8M
- Assets vs Q2 2025
- -9.4%
- Members, Q2 2026
- 508
- Net worth ratio, Q2 2026
- 21.16%
- Latest call report
- Q2 2026, NCUA 5300 · Stoppenbach Credit Union call report
- Asset rank in state
- 96th of 98 in Wisconsin
- Routing number
- 275978187
- Branches
- 1
It has 4 fewer members than on June 30, 2025 (-0.8%). Its net worth ratio was down 2.11 percentage points from 23.27% on June 30, 2025. Used vehicle loans are its largest loan category, $683K of $1.4M in total loans on its June 30, 2026 filing. Its 60-day delinquency ratio of 6.11% is above the 0.86% median of the 2,162 credit unions with under $100M in assets for Q2 2026. Its 21.16% net worth ratio is above that band's 14.31% median.
Credit unions similar in size in Wisconsin
Frequently asked about Stoppenbach Credit Union
How big is Stoppenbach Credit Union?
At Q2 2026 it reported total assets of $1.8M and 508 members.
Where is Stoppenbach Credit Union headquartered?
It is headquartered in Jefferson, WI, United States.
When was Stoppenbach Credit Union founded?
It was established in 1937, per NCUA records.
Is Stoppenbach Credit Union FDIC insured?
No. The FDIC insures banks, not credit unions. It is a federally insured credit union (NCUA charter 66565): member shares are insured by the National Credit Union Share Insurance Fund, run by the NCUA, up to $250,000 per member, per insured credit union, for each account ownership category, the same limit the FDIC applies to bank deposits.
Who regulates Stoppenbach Credit Union?
It is a state-chartered credit union, supervised by its state credit union regulator and by the NCUA, which insures its shares.
Is Stoppenbach Credit Union well capitalized?
Its net worth ratio was 21.16% at Q2 2026, in the well capitalized band. NCUA considers a credit union well capitalized at a net worth ratio of 7% or higher.
What is Stoppenbach Credit Union's delinquency ratio?
Its delinquency ratio was 6.11% at Q2 2026: loans 60 or more days past due as a share of total loans.
What is Stoppenbach Credit Union's loan-to-share ratio?
Its loan-to-share ratio was 99.38% at Q2 2026: total loans as a share of member shares and deposits.
Credit Union Profile
- Headquarters
- Jefferson, WI 53549
- Charter Type
- State-chartered credit union
- Primary Regulator
- NCUA
- Insurance
- NCUSIF
- Established
- 1937
- NCUA Charter #
- 66565
- RSSD ID
- 667896
- Members
- 508
- Potential members
- 700
Size & Membership
Profitability
Q2 annualizedCapital & Asset Quality
Peer comparison: credit unions of similar size
It ranks against 2,479 credit unions with under $100M in assets, as of Q2 2026. It is in the top quartile on 1 of 7 ranked measures and in the bottom quartile on 3.
| Metric | This credit union | Peer median | Rank among peers |
|---|---|---|---|
| Net worth ratio Middle half of peers: 11.14% to 19.38% | 21.16% | 14.31% | 79th top |
| Return on assets Middle half of peers: 0.16% to 1.30% | 1.20% | 0.72% | 71st above |
| Return on equity Middle half of peers: 1.04% to 8.69% | 5.69% | 4.74% | 56th above |
| Net interest margin Middle half of peers: 3.31% to 4.53% | 4.27% | 3.93% | 64th above |
| Efficiency ratio Middle half of peers: 68.03% to 91.60% | 125.65% | 79.83% | under 10th bottom |
| Cost of funds Middle half of peers: 0.37% to 1.23% | 1.65% | 0.78% | 12th bottom |
| Delinquency ratio Middle half of peers: 0.35% to 1.93% | 6.11% | 0.86% | under 10th bottom |
| Yield on assets Middle half of peers: 4.21% to 5.32% | 5.92% | 4.70% | 87th position only |
| Loan-to-share ratio Middle half of peers: 42.33% to 75.81% | 99.38% | 58.92% | over 90th position only |
Quarterly trends
Last 6 quarters of 5300 filings. Under each chart, Q2 2026 against Q2 2025. How these charts are built
$1.8M total assets against $2.0M; $1.4M total shares and deposits against $1.5M; $1.4M total loans against $1.6M.
$379K net worth against $460K.
21.16% net worth ratio against 23.27%.
99.38% loan-to-share ratio against 105.71%.
6.11% delinquency ratio against 7.47%.
1.20% return on assets against 3.26%; 5.69% return on equity against 14.00%.
4.27% net interest margin against 7.00%.
508 members against 512.
Quarterly trend: last 6 quarters
| Quarter | Net worth ratio | ROA | Delinquency | Loan-to-share |
|---|---|---|---|---|
| June 30, 2026 | 21.16% | 1.20% | 6.11% | 99.38% |
| March 31, 2026 | 20.56% | -19.17% | 4.40% | 95.80% |
| December 31, 2025 | 23.42% | -4.37% | 6.26% | 92.24% |
| September 30, 2025 | 23.13% | 1.66% | 7.44% | 95.48% |
| June 30, 2025 | 23.27% | 3.26% | 7.47% | 105.71% |
| March 31, 2025 | 23.12% | -1.34% | 10.08% | 97.31% |
Scroll sideways to see every column.
Watch flags
Loans 60+ days delinquent exceed 2% of the loan book, well above the credit-union industry norm of under 1%. Sustained high delinquency erodes net worth through charge-offs. BankRegReports band vs the <1% industry norm.
How we read these figures
Glossary: net worth ratio, delinquency, ROA, loan-to-share. The net worth category is ours, from NCUA's 7% well and 6% adequately capitalized cutoffs. It is not NCUA's determination, which can differ. ROA, ROE and margin annualize the quarter; NCUA's Financial Performance Report annualizes the year to date (YTD). Peer rank interpolates size-band percentiles. Methodology.