Saint Mark Credit Union Chicago, Illinois
Saint Mark Credit Union is a state-chartered credit union headquartered in Chicago, IL, established in 1955 (NCUA charter 61566), and it is regulated and insured by the NCUA. At Q2 2026 it reported 159 members and total assets of $472K (down 10.0% from Q2 2025), the 171st largest of 185 credit unions headquartered in Illinois. Its net worth ratio was 23.22% at Q2 2026, in the well capitalized band.
Also written as Saint Mark 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
- 61566
- Headquarters
- Chicago, IL
- Established
- 1955
- Total assets, Q2 2026
- $472K
- Assets vs Q2 2025
- -10.0%
- Members, Q2 2026
- 159
- Net worth ratio, Q2 2026
- 23.22%
- Latest call report
- Q2 2026, NCUA 5300 · Saint Mark Credit Union call report
- Asset rank in state
- 171st of 185 in Illinois
- Routing number
- 271081243
- Branches
- 2
It has 17 fewer members than on June 30, 2025 (-9.7%). Its net worth ratio was down 2.10 percentage points from 25.32% on June 30, 2025. Used vehicle loans are its largest loan category, $38K of $88K in total loans on its June 30, 2026 filing. Its 60-day delinquency ratio of 1.11% is above the 0.86% median of the 2,162 credit unions with under $100M in assets for Q2 2026. Its 23.22% net worth ratio is above that band's 14.31% median.
Credit unions similar in size in Illinois
Frequently asked about Saint Mark Credit Union
How big is Saint Mark Credit Union?
At Q2 2026 it reported total assets of $472K and 159 members.
Where is Saint Mark Credit Union headquartered?
It is headquartered in Chicago, IL, United States.
When was Saint Mark Credit Union founded?
It was established in 1955, per NCUA records.
Is Saint Mark Credit Union FDIC insured?
No. The FDIC insures banks, not credit unions. It is a federally insured credit union (NCUA charter 61566): 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 Saint Mark 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 Saint Mark Credit Union well capitalized?
Its net worth ratio was 23.22% 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 Saint Mark Credit Union's delinquency ratio?
Its delinquency ratio was 1.11% at Q2 2026: loans 60 or more days past due as a share of total loans.
What is Saint Mark Credit Union's loan-to-share ratio?
Its loan-to-share ratio was 24.39% at Q2 2026: total loans as a share of member shares and deposits.
Credit Union Profile
- Headquarters
- Chicago, IL 60619
- Charter Type
- State-chartered credit union
- Primary Regulator
- NCUA
- Insurance
- NCUSIF
- Established
- 1955
- NCUA Charter #
- 61566
- RSSD ID
- 1015999
- Members
- 159
- Potential members
- 250
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 2 of 7 ranked measures and in the bottom quartile on 4.
| Metric | This credit union | Peer median | Rank among peers |
|---|---|---|---|
| Net worth ratio Middle half of peers: 11.14% to 19.38% | 23.22% | 14.31% | 84th top |
| Return on assets Middle half of peers: 0.16% to 1.30% | -3.11% | 0.72% | under 10th bottom |
| Return on equity Middle half of peers: 1.04% to 8.69% | -13.41% | 4.74% | under 10th bottom |
| Net interest margin Middle half of peers: 3.31% to 4.53% | 1.07% | 3.93% | under 10th bottom |
| Efficiency ratio Middle half of peers: 68.03% to 91.60% | 386.65% | 79.83% | under 10th bottom |
| Cost of funds Middle half of peers: 0.37% to 1.23% | 0.18% | 0.78% | 88th top |
| Delinquency ratio Middle half of peers: 0.35% to 1.93% | 1.11% | 0.86% | 44th below |
| Yield on assets Middle half of peers: 4.21% to 5.32% | 1.25% | 4.70% | under 10th position only |
| Loan-to-share ratio Middle half of peers: 42.33% to 75.81% | 24.39% | 58.92% | under 10th position only |
Quarterly trends
Last 6 quarters of 5300 filings. Under each chart, Q2 2026 against Q2 2025. How these charts are built
$472K total assets against $524K; $362K total shares and deposits against $391K; $88K total loans against $124K.
$110K net worth against $133K.
23.22% net worth ratio against 25.32%.
24.39% loan-to-share ratio against 31.56%.
1.11% delinquency ratio against 13.43%.
-3.11% return on assets against 0.65%; -13.41% return on equity against 2.55%.
1.07% net interest margin against 1.44%.
159 members against 176.
Quarterly trend: last 6 quarters
| Quarter | Net worth ratio | ROA | Delinquency | Loan-to-share |
|---|---|---|---|---|
| June 30, 2026 | 23.22% | -3.11% | 1.11% | 24.39% |
| March 31, 2026 | 21.52% | -4.28% | 3.40% | 27.41% |
| December 31, 2025 | 23.55% | -2.17% | — | 25.99% |
| September 30, 2025 | 24.09% | -8.78% | — | 27.40% |
| June 30, 2025 | 25.32% | 0.65% | 13.43% | 31.56% |
| March 31, 2025 | 25.18% | 22.18% | 6.36% | 32.57% |
Scroll sideways to see every column.
Watch flags
Loans 60+ days delinquent exceed 1% of the loan book, above the typical credit-union range. Worth watching the trend in coming quarters. BankRegReports early-warning band.
The credit union posted negative net income relative to assets in its latest filing. Credit unions build net worth only through retained earnings, so sustained losses gradually weaken capital. BankRegReports flag, negative earnings.
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.