Marengo, IA
Bank Keystone Savings Bank
Keystone Savings Bank is a federally insured bank based in Marengo, Iowa.
- Type
- Bank
- Charter
- State-chartered commercial bank, not a Federal Reserve member
- Primary regulator
- FDIC
- Established
- April 27, 1935
- Headquarters
- Marengo, IA
- FDIC certificate #
- 17993
- Fed RSSD ID
- 931944
- Holding company
- Keystone Community Bcorp
- Website
- www.keystonesavings.bank
$210M
Total assets Data as of Q1 2026
$177.8M
Total deposits Data as of Q1 2026
5
Branch locations Data as of Q1 2026
$164K
Net income Data as of Q1 2026
0.32%
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
Keystone Savings Bank operates 5 branch locations in Iowa. Select a state to drill down to its towns and individual branches.
Ownership
Keystone Savings Bank is owned by Keystone Community Bcorp. See the full ownership & merger history.
Keystone Savings Bank financial summary
Other banks in Iowa
Federally insured banks headquartered in Iowa, by total assets.
- Principal Bank $9.6B
- Bankers Trust Company $7.47B
- Hills Bank and Trust Company $4.67B
- West Bank $4.01B
- Quad City Bank and Trust Company $3.09B
- Northwest Bank $2.97B
- Cedar Rapids Bank and Trust Company $2.87B
- Fidelity Bank & Trust $2.58B
Similar-size banks
Institutions close to Keystone Savings Bank’s $210M in assets.
- Madison County Community Bank $210M
- Valley Bank of Ronan $209.9M
- F & M Community Bank, National Association $209.9M
- First Bank of Coastal Georgia $210.2M
- Buffalo Federal Bank $210.3M
- Calhoun County Bank, Inc. $210.3M