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CNB St. Louis Bank

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Maplewood, MO $100M to $1B in assets Est. January 1, 1915 FDIC #4549 RSSD #870650 Routing #081015218 FDIC

Data as of · sourced from FFIEC call reports. How we update

CNB St. Louis Bank is an FDIC-insured commercial bank headquartered in Maplewood, MO, established in 1915 (FDIC certificate 4549), and it is supervised by the FDIC. At Q2 2026 it reported total assets of $812.9M, down 3.2% from Q2 2025, the 48th largest of 191 banks headquartered in Missouri. It reports no CET1 ratio; its Tier 1 leverage ratio was 9.29% at Q2 2026, above the 9% community bank leverage ratio requirement for being considered well capitalized.

Charter
Commercial bank
Regulator
FDIC
Deposit insurance
FDIC
FDIC certificate
4549
Headquarters
Maplewood, MO
Established
1915
Total assets, Q2 2026
$812.9M
Assets vs Q2 2025
-3.2%
Tier 1 leverage ratio, Q2 2026
9.29%
Domestic offices
6 FDIC institution directory, current count
Routing number
081015218
Latest call report
Q2 2026, FFIEC 051 · CNB St. Louis Bank call report
Holding company
CARDINAL BANCORP, INC.
Asset rank in state
48th of 191 in Missouri
Assets
$812.9M
Deposits
$696.8M
Loans
$659.2M
Equity
$63.7M

CNB St. Louis Bank leans heavily on commercial real estate. Based in Maplewood, Missouri, it had $813 million in assets at June 30, 2026, down 3.2% from a year earlier. It holds commercial real estate loans worth 2.8 times its capital, 2.3 times the median of 1.2 times for the 2,660 banks with $100 million to $1 billion in assets. It also lost 3.6% of its deposits over the year, lower than about 9 in 10 banks its size (median 4.0%).

Delinquency has appeared in its $147 million commercial and industrial book: 3.95% of those loans are past due or on nonaccrual, against almost none a year earlier. Earnings jumped: net income for the quarter was $2.8 million, 34% above the same quarter a year earlier. Where it has less room is capital: it funds 9.29% of its assets with Tier 1 capital, lower than about three-quarters of banks its size (median 10.99%).

As of June 30, 2026, CNB St. Louis Bank reported a return on assets of 1.32%, a nonperforming-loan ratio of 0.57% and a Texas ratio of 4.91%. The figures come from its call report filed with the FFIEC.

By total assets at Q2 2026, CNB St. Louis Bank is the 48th largest of the 191 banks headquartered in Missouri. Between Q1 2026 and Q2 2026, its total assets fell 4.7% to $812.9M, loans fell 4.4% and deposits fell 4.9%. Owner-occupied commercial real estate loans made up 22.4% of its total loans on June 30, 2026, its largest category; next came commercial and industrial loans at 22.2%. Its 6 offices in the FDIC Summary of Deposits are in 6 cities in MO; its Maplewood office books 54% of its branch deposits. On its Q2 2026 call report, CNB St. Louis Bank meets the community bank leverage ratio test for well capitalized.

Headquarters Profile

Address
7305 Manchester Rd, Maplewood, MO 63143
County
St. Louis
Metro Area
St. Louis, MO-IL
Charter
Commercial bank, state charter, Fed non-member, FDIC-supervised
Primary Regulator
FDIC
FDIC Region
Kansas City (Region 11)
Federal Reserve member
No
Federal Reserve district
District 8, St. Louis
Fiduciary (trust) powers
Full trust powers granted
Call Report form
FFIEC 051
Established
January 1, 1915
Former names
Citizens National Bank of Greater St. Louis (1965-2020)
Domestic offices
6 FDIC institution directory, current count
Employees (FTE)
89
Domestic deposits
$696.8M
Allowance for credit losses
$12.5M
Net charge-offs (YTD)
-$1K
Average total assets
$844.5M
Average total loans
$677.7M
Average interest-bearing deposits
$593.9M
Tax status
Subchapter S
Ownership
Stock
Community bank
Yes
FDIC-insured since
January 1, 1934
FDIC Cert
4549
Fed RSSD
870650
SEC CIK
874481 → filed by CARDINAL BANCORP, INC.

Profitability

Q2 annualized
Return on Assets1.32%YTD 1.34%
Return on Equity17.70%YTD 18.31%
Net Interest Margin3.53%YTD 3.47%

Balance Sheet

Total liabilities$749.2M
Cash & balances due$42.1M
Securities, available-for-sale$105.2M
Securities, held-to-maturity$0
Goodwill & intangibles$0

Income Statement

Net income Q2$2.8M
Net interest income YTD$14.5M
Total interest income YTD$23.6M
Total interest expense YTD$9.1M
Provision for credit losses YTD$467K

Operating & Funding

Total noninterest income YTD$909K
Total noninterest expense YTD$9.2M

Ratios tagged annualized use the Q2 income alone. The UBPR and FDIC annualize the year to date instead. FDIC BankFind divides by the average of quarter-end total assets, the UBPR by RC-K average assets. The YTD margin is the UBPR's tax-equivalent figure over its own average earning assets; FDIC BankFind's margin is not tax-equivalent. As a community bank leverage ratio filer, CNB St. Louis Bank reports no risk-based capital ratios; its Tier 1 leverage ratio applies. How we compute these figures

Quarterly trends

Over the 12 quarters to Q2 2026, CNB St. Louis Bank's total assets ran between $743.5M (Q3 2023) and $877.6M (Q3 2025), and it earned a profit in all 12 quarters. The line under each chart compares Q2 2026 with Q2 2025. How these charts are built

Total assets and total liabilities

$812.9M total assets against $839.9M; $749.2M total liabilities against $785.5M.

Loans and leases against deposits

$646.7M net loans and leases against $657.5M; $696.8M total deposits against $722.7M.

Securities and cash

$105.2M securities against $119.8M; $42.1M cash and balances due against $42.8M.

Interest income against interest expense

$11.8M total interest income against $11.7M; $4.5M total interest expense against $5.2M.

Net interest income

$7.3M net interest income against $6.5M.

Noninterest income against noninterest expense

$462K total noninterest income against $445K; $4.7M total noninterest expense against $4.7M.

Provision for credit losses

$242K provision for credit losses against $180K.

Net income

$2.8M net income against $2.1M.

Return on assets and net interest margin

1.32% return on assets against 0.99%; 3.53% net interest margin against 3.25%.

CET1 and Tier 1 leverage ratios

9.29% tier 1 leverage ratio against 8.61%.

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21 quarters of trends · 8 tabs · peer percentiles · watchlist alerts

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Watch flags

Automated conditions triggered on this bank's latest filing. Advisory only; see the source metric pages for full context. Each flag is tagged Regulatory when it cites an official supervisory threshold, or BRR analysis when it's our own band, informed by our data and models.

CRE concentration at 277% of capital, approaching guidance BRR analysis What does this mean? →

Commercial real estate loans are between 200% and 300% of total capital, approaching the 2006 interagency guidance threshold of 300% that triggers heightened supervisory attention. BankRegReports early-warning band below the 300% guidance.

CNB St. Louis Bank rankings

Its closest position to the top of a national ranking is 1,228 of 4,196, for total assets; its furthest is 1,875 of 3,606, for efficiency ratio.

How ranks are counted

Quarterly trend: last 8 quarters

From Q3 2024 to Q2 2026, its return on assets ran from 0.92% (Q3 2024) to 1.38% (Q4 2025) and its net interest margin ran from 3.02% (Q3 2024) to 3.53% (Q2 2026).

Quarter Leverage ROA NPL Texas NIM
Q2 2026 9.29% 1.32% 0.57% 4.91% 3.53%
Q1 2026 8.96% 1.36% 0.57% 5.25% 3.41%
Q4 2025 8.65% 1.38% 0.66% 6.20% 3.32%
Q3 2025 8.48% 1.35% 0.78% 7.68% 3.33%
Q2 2025 8.61% 0.99% 0.53% 5.35% 3.25%
Q1 2025 8.65% 0.96% 0.57% 5.87% 3.13%
Q4 2024 8.65% 0.99% 0.71% 7.38% 3.12%
Q3 2024 8.71% 0.92% 0.67% 6.32% 3.02%

Swipe the table sideways to see every column.

Branch Network

View all 6 branches → Branch count from the FDIC Summary of Deposits, June 30, 2026. The domestic office count above is the FDIC's current figure, so the two can differ.

1–6 of 6
Branch Location ZIP Deposits
Cnb St Louis Bank Maplewood , MO 63143 $373.5M
Florissant Banking Center Branch Florissant , MO 63031 $101.5M
Westport Banking Center Branch Maryland Heights , MO 63043 $63.4M
Affton Banking Center Branch Affton , MO 63123 $61.3M
St. Peters Branch St. Peters , MO 63376 $50.6M
St. Charles Branch Saint Charles , MO 63303 $46.6M

Regulatory record

Facts as filed or published, not a rating.

Deposit market share
0.2% of deposits in MO, rank 61 of 249 institutions
Period: June 30, 2026. Source: FDIC Summary of Deposits.
Mortgage lending (HMDA)
55 applications, 49 loans originated, $31.2M originated, across 4 states
Period: Calendar year 2025. Source: FFIEC HMDA loan application register.
SBA 7(a) lending
1 loans, $4.6M approved, $4.6M average. 0.00% of that year's loans have since been charged off
Period: Federal fiscal year 2021 (October to September). Source: SBA 7(a) and 504 loan data (FOIA).
Not on file
Enforcement actions, Consumer complaints, CFPB enforcement, CRA examination rating. No record from these sources, which is not the same as a clean record. Sources

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CNB St. Louis Bank: regulatory capital profile · BankRegReports

Frequently asked about CNB St. Louis Bank

What are CNB St. Louis Bank's total assets?

As of the Q2 2026 filing, CNB St. Louis Bank reported total assets of $812.9 million in its FFIEC call report.

Where is CNB St. Louis Bank headquartered?

It is headquartered in Maplewood, MO, United States.

When was CNB St. Louis Bank founded?

It was established in 1915, per the FDIC institution directory.

Is CNB St. Louis Bank FDIC-insured?

Yes. It is an FDIC-insured commercial bank (FDIC Certificate #4549). Deposits are insured up to $250,000 per depositor, per insured bank, for each account ownership category, per FDIC rules.

Who regulates CNB St. Louis Bank?

CNB St. Louis Bank's primary federal regulator is the FDIC.

How many branches does CNB St. Louis Bank operate?

It operates 6 domestic offices, per the FDIC institution directory. That count includes administrative and limited-service offices as well as full-service branches.

What is CNB St. Louis Bank's Texas Ratio?

Its Texas Ratio is 4.91% in its Q2 2026 call report, within the healthy range (at or below 50%, the level at which problem assets reach half of the capital cushion). The Texas Ratio measures non-performing assets against the bank's capital and reserves.

What was CNB St. Louis Bank previously called?

The charter now named CNB St. Louis Bank has also operated as Citizens National Bank of Greater St. Louis (1965-2020), per FDIC structure-change records.

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