THE SECURITY NATIONAL BANK OF SIOUX CITY, IOWA
THE SECURITY NATIONAL BANK OF SIOUX CITY, IOWA is an FDIC-insured commercial bank headquartered in SIOUX CITY, IA, established in 1884. As of , the bank reported total assets of $1.7B and total deposits of $1.3B. Profitability stands at 1.36% ROA and 11.48% ROE, with a net interest margin of 3.29%. CET1 capital ratio: 11.84%, well above regulatory minimums. NPL ratio: 0.83% · Texas Ratio: 4.42%. Operates 10 domestic branches.
Capital & Liquidity
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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.
More than half of deposits are uninsured (above the $250K FDIC threshold). Worth understanding the depositor concentration in stressed scenarios.
The Security National Bank of Sioux City, Iowa rankings
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Quarterly trend — last 8 quarters
Quarter-over-quarter movement in the five most-watched ratios. Sourced from the bank's own FFIEC call report filings.
| Quarter | CET1 | ROA | NPL | Texas | NIM |
|---|---|---|---|---|---|
| 2025-12-31 | 11.84% | 1.36% | 0.83% | 4.42% | 3.29% |
| 2025-09-30 | 11.71% | 1.75% | 0.77% | 4.04% | 3.32% |
| 2025-06-30 | 11.78% | 1.58% | 0.81% | 4.27% | 3.19% |
| 2025-03-31 | 11.05% | 1.49% | 0.76% | 4.10% | 3.02% |
| 2024-12-31 | 10.96% | 1.12% | 0.65% | 3.55% | 2.92% |
| 2024-09-30 | 11.56% | 1.48% | 0.46% | 2.34% | 3.04% |
| 2024-06-30 | 11.19% | 1.46% | 0.16% | 0.85% | 3.05% |
| 2024-03-31 | 10.60% | 1.51% | 0.08% | 0.44% | 3.07% |
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Frequently asked about THE SECURITY NATIONAL BANK OF SIOUX CITY, IOWA
What are The Security National Bank of Sioux City, Iowa's total assets?
As of the Q4 2025 filing, The Security National Bank of Sioux City, Iowa reported total assets of $1.68 billion in its most recent FFIEC call report. All figures come directly from the bank's quarterly Schedule RC filing.
Where is The Security National Bank of Sioux City, Iowa headquartered?
The Security National Bank of Sioux City, Iowa is headquartered in SIOUX CITY, IA, United States. It files quarterly FFIEC call reports as required of all FDIC-insured commercial banks.
When was The Security National Bank of Sioux City, Iowa founded?
The Security National Bank of Sioux City, Iowa was established in 1884, per the FDIC institution directory.
Is The Security National Bank of Sioux City, Iowa FDIC-insured?
Yes. The Security National Bank of Sioux City, Iowa is an FDIC-insured commercial bank (FDIC Certificate #4506). Deposits are insured up to $250,000 per depositor, per insured bank, for each account ownership category, per FDIC rules.
Who regulates The Security National Bank of Sioux City, Iowa?
The Security National Bank of Sioux City, Iowa's primary federal regulator is the OCC. All FDIC-insured banks also report to the FDIC and, depending on charter, the Federal Reserve.
What is The Security National Bank of Sioux City, Iowa's CET1 capital ratio?
The Security National Bank of Sioux City, Iowa reported a Common Equity Tier 1 (CET1) capital ratio of 11.84% in its most recent quarterly filing — above regulatory minimums.
How many branches does The Security National Bank of Sioux City, Iowa operate?
The Security National Bank of Sioux City, Iowa operates 10 domestic branches, per the most recent FDIC Summary of Deposits filing.
What is The Security National Bank of Sioux City, Iowa's Texas Ratio?
The Security National Bank of Sioux City, Iowa's Texas Ratio is 4.42% — within the healthy range (under 25%). The Texas Ratio measures non-performing assets against the bank's capital and reserves; see our /glossary/texas-ratio/ page for the full definition.