FDIC-insured bank

South Ottumwa Savings Bank

Bank headquartered in Ottumwa, Iowa, part of CORNERSTONE FINL SERVICES GROUP.
Source: FDIC BankFind Suite, data as of June 30, 2026, fetched September 5, 2026
Total assets
$565.45 million
Total deposits
$473.89 million
Branches
6
FDIC-insured since
1934
Established
1903

Headquarters and contact

Address320 Church St
Ottumwa, IA 52501
CountyWapello
Metro areaOttumwa, IA
Websitewww.sosb-ia.com
Phonenot published in FDIC data, see the bank's website

FDIC record

FDIC Certificate9099
Federal Reserve RSSD ID75446
StatusActive
Charter classNM (STATE)
Holding companyCORNERSTONE FINL SERVICES GROUP
Domestic offices6
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.sosb-ia.com.
See how your odds compare before you apply at South Ottumwa Savings Bank.

Offices nearest to headquarters

South Ottumwa Savings Bank main office
Ottumwa, IA
320 Church St, 52501
North Court Branch
Ottumwa, IA
2525 N Court St, 52501
Hedrick Branch
Hedrick, IA
101 S Main St, 52563
102 South Main Branch
Albia, IA
102 S Main St, 52531
Albia Drive-Thru Branch
Albia, IA
217 S Main St, 52531
West Liberty State Bank Branch
West Liberty, IA
101 E 4th St, 52776

Where South Ottumwa Savings Bank has offices