FDIC-insured bank

Keystone Savings Bank — Marengo, IA

Bank headquartered in Marengo, Iowa, part of KEYSTONE COMMUNITY BCORP.
Source: FDIC BankFind Suite, data as of June 30, 2026, fetched September 5, 2026
Total assets
$200.76 million
Total deposits
$168.68 million
Branches
5
FDIC-insured since
1959
Established
1935

Headquarters and contact

Address330 Western Avenue
Marengo, IA 52301
CountyIowa
Websitewww.keystonesavings.bank
Phonenot published in FDIC data, see the bank's website

FDIC record

FDIC Certificate17993
Federal Reserve RSSD ID931944
StatusActive
Charter classNM (STATE)
Holding companyKEYSTONE COMMUNITY BCORP
Domestic offices5
Financials as ofJune 30, 2026

How to find your Keystone Savings Bank routing number

FDIC does not publish ABA routing numbers, and many banks use different routing numbers by state or by account type. The reliable places to find yours: the bottom left of a check from this bank, the "account details" screen in its online banking, or its official website at www.keystonesavings.bank.
Share one credit line with people you trust. Everyone gets their own limit.

Offices nearest to headquarters

Keystone Savings Bank main office
Marengo, IA
330 Western Avenue, 52301
Victor Branch
Victor, IA
606 3rd St, 52347
Keystone Branch
Keystone, IA
81 Main St, 52249
Center Point Branch
Center Point, IA
807 Rosedale Dr, 52213
Pleasant Hill Branch
Pleasant Hill, IA
6871 Ne 12th Ave, 50327

Where Keystone Savings Bank has offices

Cities with the most Keystone Savings Bank offices

Largest banks headquartered elsewhere in Iowa

Principal Bank Des Moines$9.84 billion
Bankers Trust Company Des Moines$7.83 billion
Hills Bank and Trust Company Hills$4.79 billion
West Bank West Des Moines$4.03 billion
Northwest Bank Spencer$3 billion
Cedar Rapids Bank and Trust Company Cedar Rapids$2.90 billion
Quad City Bank and Trust Company Bettendorf$2.77 billion
Fidelity Bank & Trust Dubuque$2.60 billion
Compare before you open an account: today's CD and savings rates, the CD calculator and the savings calculator.