FDIC-insured bank

Clear Lake Bank and Trust Company

Bank headquartered in Clear Lake, Iowa, part of ARNESON BANCSHARES INC.
Source: FDIC BankFind Suite, data as of June 30, 2026, fetched September 5, 2026
Total assets
$649.33 million
Total deposits
$584.97 million
Branches
5
FDIC-insured since
1939
Established
1934

Headquarters and contact

Address322 Main Ave
Clear Lake, IA 50428
CountyCerro Gordo
Metro areaMason City, IA
Websitewww.clearlakebank.bank
Phonenot published in FDIC data, see the bank's website

FDIC record

FDIC Certificate15690
Federal Reserve RSSD ID865544
StatusActive
Charter classSM (STATE)
Holding companyARNESON BANCSHARES INC
Domestic offices5
Financials as ofJune 30, 2026

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.clearlakebank.bank.
See how your odds compare before you apply at Clear Lake Bank and Trust Company.

Offices nearest to headquarters

Clear Lake Bank And Trust Company main office
Clear Lake, IA
322 Main Ave, 50428
Drive-Up Facility
Clear Lake, IA
21 North 4th Street, 50428
Mason City Branch
Mason City, IA
425 Tiffany Dr, 50401
100 East State Street Branch
Mason City, IA
100 E State St, 50401
Garner Branch
Garner, IA
325 State St, 50438

Where Clear Lake Bank and Trust Company has offices