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To report a lost or stolen OSB Debit Card please call 1-866-842-5208.

Marseilles Exterior B

Morris Exterior A



Ottawa Savings Bank
925 LaSalle Street
Ottawa, IL 61350
Phone: 815-433-2525
Toll Free: 800-491-9400
Fax: 815-433-2573






Twin Oaks Savings Bank – Marseilles
A Division of Ottawa Savings Bank
125 West Bluff Street
Marseilles, IL 61341
Phone: 815-795-2129
Fax: 815-795-6381





Twin Oaks Savings Bank – Morris
A Division of Ottawa Savings Bank
1508 Creek Drive
P.O. Box 465
Morris, IL 60450
Phone: 815-941-0004
Fax: 815-941-0194






Ottawa Savings Bank – Shorewood
Loan Origination Office (By appointment only)
566 BrookForest Ave

Shorewood, IL 60404 
Phone: 815-630-2120






Ottawa Savings Bank – Peru
Loan Origination Office (Stop in and see us or make an appointment)
1112 Peoria Street
Peru, IL 61354
Phone: 815-250-0684



Hours of operations at our Ottawa, Marseilles and Morris locations:

Lobby: Monday – Friday…8:00am – 5:00 pm
Saturday……………8:00 am – 12:00 pm

Drive-Up: Monday – Thursday…8:00am – 5:00pm
Friday……………………8:00am – 6:00pm
Saturday………………..8:00am – 12:00pm

Email: [email protected]

Please Note: Ottawa Savings Bank is committed to protecting your privacy and ensuring your private information is secure. For your protection, please do not send sensitive information such as account numbers, Social Security Numbers or private information through email.


Google Maps

Ottawa Location:

Marseilles Location:

Morris Location:

Shorewood Location:

Peru Location