Montgomery, MN
Bank Cornerstone State Bank
Cornerstone State Bank is a federally insured bank based in Montgomery, Minnesota.
- Type
- Bank
- Charter
- State-chartered commercial bank, not a Federal Reserve member
- Primary regulator
- FDIC
- Established
- April 8, 1974
- Headquarters
- Montgomery, MN
- FDIC certificate #
- 21525
- Fed RSSD ID
- 914853
- Holding company
- Cornerstone Bcorp Inc
- Website
- WWW.CORNERSTONESTATEBANK.COM
$243.1M
Total assets Data as of Q1 2026
$221.5M
Total deposits Data as of Q1 2026
7
Branch locations Data as of Q1 2026
$799K
Net income Data as of Q1 2026
1.32%
Return on assets Data as of Q1 2026
Source: U.S. FDIC BankFind & NCUA 5300 Call Report (public data). Data sources · Data as of Q1 2026
Branches by state
Cornerstone State Bank operates 7 branch locations in Minnesota. Select a state to drill down to its towns and individual branches.
Ownership
Cornerstone State Bank is owned by Cornerstone Bcorp Inc. See the full ownership & merger history.
Cornerstone State Bank financial summary
Other banks in Minnesota
Federally insured banks headquartered in Minnesota, by total assets.
- Ameriprise Bank, FSB $25.51B
- Bridgewater Bank $5.32B
- Frandsen Bank & Trust $3.69B
- Stearns Bank National Association $3.3B
- Minnwest Bank $2.97B
- Merchants Bank, National Association $2.93B
- Tradition Capital Bank $2.68B
- Think Mutual Bank $2.27B
Similar-size banks
Institutions close to Cornerstone State Bank’s $243.1M in assets.
- PennCrest Bank $242.9M
- First State Bank of the Ozarks $242.7M
- The First National Bank and Trust $243.5M
- Citizens State Bank $242.6M
- Citizens Bank of Eldon $243.5M
- American Bank of the Carolinas $242.6M