First Security Bank (Mapleton, IA)
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Data as of · sourced from FFIEC call reports. How we update
First Security Bank is an FDIC-insured commercial bank headquartered in Mapleton, IA, established in 1878 (FDIC certificate 251), and it is supervised by the FDIC. At Q2 2026 it reported total assets of $65.2M, down 2.7% from Q2 2025, the 209th largest of 225 banks headquartered in Iowa. Its CET1 capital ratio was 18.88% at Q2 2026, comfortably above the 7% level required once the capital conservation buffer is included.
- Charter
- Commercial bank
- Regulator
- FDIC
- Deposit insurance
- FDIC
- FDIC certificate
- 251
- Headquarters
- Mapleton, IA
- Established
- 1878
- Total assets, Q2 2026
- $65.2M
- Assets vs Q2 2025
- -2.7%
- CET1 ratio, Q2 2026
- 18.88%
- Domestic offices
- 2 FDIC institution directory, current count
- Routing number
- 073906034
- Latest call report
- Q2 2026, FFIEC 051 · First Security Bank call report
- Holding company
- BEULAH BANCORPORATION, INC.
- Asset rank in state
- 209th of 225 in Iowa
First Security Bank, based in Mapleton, Iowa, reported $65 million in assets at June 30, 2026, down 2.7% from a year earlier. It carries problem assets equal to 0.0% of the capital and reserves that would absorb them, lower than about 9 in 10 of the 583 banks with less than $100 million in assets (median 1.4%). It also pays an average of 0.79% on its deposits and borrowings, about half the median of 1.53% for banks its size.
Earnings jumped: net income for the quarter was $202,000, 143% above the same quarter a year earlier. Paper losses on its bond portfolio are shrinking: unrealized losses of $1.2 million equal 15% of Tier 1 capital, down from 24% a year earlier.
As of June 30, 2026, First Security Bank reported a CET1 capital ratio of 18.88%, a return on assets of 1.19%, a nonperforming-loan ratio of 0.00% and a Texas ratio of 0.00%. The figures come from its call report filed with the FFIEC.
By total assets at Q2 2026, First Security Bank is the 209th largest of the 225 banks headquartered in Iowa. Between Q1 2026 and Q2 2026, its total assets fell 3.5% to $65.2M, loans fell 8.9% and deposits fell 4.7%. The largest part of its loan book on June 30, 2026 was farmland and other real estate loans, at 39.7% of total loans, ahead of agricultural production loans at 27.9%. Its 2 offices in the FDIC Summary of Deposits are in Mapleton, IA and Danbury, IA; its Mapleton office books 69% of its branch deposits. Judged on its Q2 2026 call report, First Security Bank meets every capital ratio test for well capitalized.
Headquarters Profile
- Address
- 401 Main St, Mapleton, IA 51034
- County
- Monona
- 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 7, Chicago
- Fiduciary (trust) powers
- Trust powers grandfathered
- Call Report form
- FFIEC 051
- Established
- October 3, 1878
- Former names
- Valley Bank & Trust (1995-2019)
- Domestic offices
- 2 FDIC institution directory, current count
- Employees (FTE)
- 9
- Domestic deposits
- $54.7M
- Allowance for credit losses
- $510K
- Net charge-offs (YTD)
- $0
- Average total assets
- $67.7M
- Average total loans
- $33.6M
- Average interest-bearing deposits
- $42.6M
- Tax status
- Subchapter S
- Ownership
- Stock
- Community bank
- Yes
- FDIC-insured since
- January 1, 1934
- FDIC Cert
- 251
- Fed RSSD
- 943143
- Website
- www.firstsecuritybanks.com →
- Parent Holding Company
- BEULAH BANCORPORATION, INC. (RSSD 1919976)
Profitability
Q2 annualizedCapital & Liquidity
Balance Sheet
Income Statement
Operating & Funding
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. How we compute these figures
Quarterly trends
Over the 12 quarters to Q2 2026, First Security Bank's total assets ran between $61.3M (Q3 2025) and $77.2M (Q1 2024), and it earned a profit in 9 of the 12 quarters. The line under each chart compares Q2 2026 with Q2 2025. How these charts are built
$65.2M total assets against $67.1M; $54.9M total liabilities against $57.0M.
$32.1M net loans and leases against $34.2M; $54.7M total deposits against $56.6M.
$16.6M securities against $14.2M; $10.5M cash and balances due against $12.1M.
$713K total interest income against $755K; $113K total interest expense against $148K.
$600K net interest income against $607K.
$57K total noninterest income against $46K; $451K total noninterest expense against $403K.
No provision recorded in the last 12 quarters.
$202K net income against $83K.
1.19% return on assets against 0.48%; 4.07% net interest margin against 3.84%.
18.88% CET1 capital ratio against 18.57%; 12.25% tier 1 leverage ratio against 12.21%.
Inside the full First Security Bank terminal
21 quarters of trends · 8 tabs · peer percentiles · watchlist alerts
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Quarterly trend: last 8 quarters
From Q3 2024 to Q2 2026, its return on assets ran from -2.55% (Q4 2024) to 1.29% (Q1 2026) and its net interest margin ran from 2.45% (Q1 2025) to 4.07% (Q2 2026).
| Quarter | CET1 | ROA | NPL | Texas | NIM |
|---|---|---|---|---|---|
| Q2 2026 | 18.88% | 1.19% | 0.00% | 0.00% | 4.07% |
| Q1 2026 | 17.82% | 1.29% | 0.00% | 0.00% | 3.83% |
| Q4 2025 | 16.61% | -1.39% | 0.00% | 0.00% | 3.90% |
| Q3 2025 | 19.16% | 1.27% | 0.00% | 0.00% | 3.75% |
| Q2 2025 | 18.57% | 0.48% | 0.00% | 0.00% | 3.84% |
| Q1 2025 | 18.47% | 0.69% | 0.00% | 0.00% | 2.45% |
| Q4 2024 | 16.60% | -2.55% | 0.00% | 0.00% | 3.22% |
| Q3 2024 | 17.27% | 1.11% | 0.00% | 0.00% | 3.05% |
Swipe the table sideways to see every column.
Branch Network
View all 2 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.
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| First Security Bank (main office) | Mapleton , IA | 51034 | $37.8M |
| Danbury Branch | Danbury , IA | 51019 | $16.9M |
Events & Regulatory History
Mergers, charter changes, enforcement actions, FDIC assistance, and (if applicable) failure events recorded against this institution. Click a year to see what else was happening across US banking that year.
| Date | Category | Event | Source |
|---|---|---|---|
| January 1, 1995 | Merger | Participated in Absorption/Consolidation/Merger | FDIC |
| January 1, 1995 | Structure Change | Acquired Farmers Savings Bank Charter Discontinued (Merger or Purchase & Assumption) for the acquired bank | FFIEC NIC |
Sourced from the bank event history (FDIC, Federal Reserve NIC, OCC, and OTS). Showing the most recent 2 events.
Regulatory record
Facts as filed or published, not a rating.
- Deposit market share
- <0.1% of deposits in IA, rank 238 of 261 institutions
- Period: June 30, 2026. Source: FDIC Summary of Deposits.
- SBA 7(a) lending
- 1 loans, $123K approved, $123K average. 0.00% of that year's loans have since been charged off
- Period: Federal fiscal year 2005 (October to September). Source: SBA 7(a) and 504 loan data (FOIA).
- Not on file
- Enforcement actions, Mortgage lending (HMDA), 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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Frequently asked about First Security Bank
What are First Security Bank's total assets?
As of the Q2 2026 filing, First Security Bank reported total assets of $65.2 million in its FFIEC call report.
Where is First Security Bank headquartered?
It is headquartered in Mapleton, IA, United States.
When was First Security Bank founded?
It was established in 1878, per the FDIC institution directory.
Is First Security Bank FDIC-insured?
Yes. It is an FDIC-insured commercial bank (FDIC Certificate #251). Deposits are insured up to $250,000 per depositor, per insured bank, for each account ownership category, per FDIC rules.
Who regulates First Security Bank?
First Security Bank's primary federal regulator is the FDIC.
What is First Security Bank's CET1 capital ratio?
It reported a Common Equity Tier 1 (CET1) capital ratio of 18.88% in its Q2 2026 call report, comfortably above the 7% level required once the capital conservation buffer is included.
How many branches does First Security Bank operate?
It operates 2 domestic offices, per the FDIC institution directory. That count includes administrative and limited-service offices as well as full-service branches.
What is First Security Bank's Texas Ratio?
Its Texas Ratio is 0.00% 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 First Security Bank previously called?
The charter now named First Security Bank has also operated as Valley Bank & Trust (1995-2019), per FDIC structure-change records.
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