Cornerstone State Bank
Headquarters: Montgomery, Minnesota
Overview
Cornerstone State Bank is an FDIC-insured bank headquartered in Montgomery, Minnesota. It reported $243.07M in assets and $221.50M in deposits for the period ending March 31, 2026. Bankular currently lists 7 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.
Branch footprint
Where Cornerstone State Bank has branches
Explore the cities with the most currently listed locations. Branch hours can change, so confirm current lobby, drive-through and appointment hours with the institution before visiting.
Locations
Find a branch of Cornerstone State Bank
Belle Plaine Branch
406 E Poplar St, Belle Plaine, Minnesota, 56011
Full-service branch · Opened January 22, 1996
Cloquet Branch
1516 Cloquet Ave, Cloquet, Minnesota, 55720
Full-service branch · Opened January 1, 1958
Eagle Lake Branch
600 Parkway Ave, Eagle Lake, Minnesota, 56024
Full-service branch · Opened September 14, 1992
Green Isle Branch
451 3rd St, Green Isle, Minnesota, 55338
Full-service branch · Opened September 22, 1997
Le Sueur Branch
415 N Main St, Le Sueur, Minnesota, 56058
Full-service branch · Opened August 1, 2008
Madison Lake Branch
500 Main St, Madison Lake, Minnesota, 56063
Full-service branch · Opened November 15, 1901
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 | $243.07M | $221.50M | $154.46M | 1.32% |
| December 31, 2025 | $241.97M | $218.84M | $152.70M | 0.83% |
| September 30, 2025 | $233.31M | $211.58M | $144.25M | 0.72% |
| June 30, 2025 | $235.41M | $214.00M | $145.56M | 0.48% |
| March 31, 2025 | $233.53M | $213.49M | $148.86M | 0.61% |
| December 31, 2024 | $236.92M | $216.25M | $148.32M | 0.55% |
| September 30, 2024 | $231.99M | $209.72M | $141.16M | 0.35% |
| June 30, 2024 | $226.46M | $205.20M | $139.85M | 0.24% |
Size and reach
How this institution compares
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More on Cornerstone State Bank
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Branch locations
7 listed locations.
Explore →Compare this institution
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Explore →State banking market
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Explore →Montgomery banking market
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Explore →Rankings and research
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Explore →Sources and methodology
Review the official sources and reporting periods.
Explore →Frequently asked questions
Is Cornerstone State Bank federally insured?
Yes. Bankular identifies this institution in FDIC records under certificate 21525.
Where is Cornerstone State Bank headquartered?
Cornerstone State Bank is headquartered in Montgomery, Minnesota, at 401 4th St Nw, Montgomery, Minnesota, 56069.
How large is Cornerstone State Bank?
It reported $243.07M in assets and $221.50M in deposits for the period ending March 31, 2026.
How many locations does Cornerstone State Bank have?
Bankular currently lists 7 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.