First Security Bank
Headquarters: Mackinaw, Illinois
Overview
First Security Bank is an FDIC-insured bank headquartered in Mackinaw, Illinois. It reported $148.93M in assets and $127.11M in deposits for the period ending March 31, 2026. Bankular currently lists 4 branch locations.
What Bankular checked
These dates identify the official records and review steps supporting this profile.
Quarterly change
What changed since the previous report
December 31, 2025 to March 31, 2026
These comparisons use consecutive official regulatory reporting periods. A change is descriptive and is not a recommendation or safety rating.
Financial indicators
Capital, profitability and credit quality
These are the latest reported capital, profitability and credit-quality measures available for this institution. Read the figures together rather than as a single safety rating.
Locations
Find a branch of First Security Bank
Danvers Branch
116 E Exchange St, Danvers, Illinois, 61732
Full-service branch · Opened August 5, 1983
Deer Creek Branch
201 E 1st Ave, Deer Creek, Illinois, 61733
Full-service branch · Opened September 12, 2002
Heritage Lake
#2 Bradford Drive, Mackinaw, Illinois, 61755
Full-service branch · Opened October 6, 1997
Main Office
101 E Fast Ave, Mackinaw, Illinois, 61755
Full-service branch · Opened January 1, 1934
Financial overview
Latest reported figures
Through March 31, 2026
Financial trends
How the balance sheet has changed
Compare recent quarters to see the direction of assets, deposits and loans.
| Quarter | Assets | Deposits | Net loans | ROA |
|---|---|---|---|---|
| March 31, 2026 | $148.93M | $127.11M | $119.36M | 0.98% |
| December 31, 2025 | $139.87M | $122.99M | $109.26M | 1.08% |
| September 30, 2025 | $140.08M | $123.72M | $102.52M | 1.07% |
| June 30, 2025 | $128.17M | $112.37M | $97.50M | 1.10% |
| March 31, 2025 | $127.43M | $111.81M | $92.96M | 1.05% |
| December 31, 2024 | $126.25M | $110.81M | $92.26M | 1.28% |
| September 30, 2024 | $121.75M | $106.35M | $92.19M | 1.31% |
| June 30, 2024 | $118.69M | $103.83M | $89.07M | 1.39% |
Size and reach
How this institution compares
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More on First Security Bank
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Branch locations
4 listed locations.
Explore →Compare this institution
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Explore →State banking market
Explore institutions and deposit-market context in Illinois.
Explore →Mackinaw banking market
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Explore →Sources and methodology
Review the official sources and reporting periods.
Explore →Frequently asked questions
Is First Security Bank federally insured?
Yes. Bankular identifies this institution in FDIC records under certificate 3698.
Where is First Security Bank headquartered?
First Security Bank is headquartered in Mackinaw, Illinois, at 101 E Fast Ave, Mackinaw, Illinois, 61755.
How large is First Security Bank?
It reported $148.93M in assets and $127.11M in deposits for the period ending March 31, 2026.
How many locations does First Security Bank have?
Bankular currently lists 4 branch locations for this institution.
Data sources and methodology
Bankular combines official regulatory records with institution-published product information. The detailed sources are available below for readers who want to verify a figure.