What are the opening hours?

Monday 9am - 5pm Tuesday 9am - 5pm Wednesday 9am - 5pm Thursday 9am - 5pm Friday 9am - 5pm Saturday 9am - 1pm

Old Second National Bank

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United States
Chicago, IL
Old Second National Bank

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As Old Second expands throughout Chicagoland and the surrounding communities, our commitment to a better banking experience remains steadily on course.

Unlike other Chicago-area banks, our heritage traces the advancement and evolution of the banking industry and the growth and expansion of the Chicago metropolitan area. Backed by an unwavering sense of financial responsibility and focus on humanity, we've persevered through the most challenging and rewarding economic climates and historical events since the late nineteenth century. For more than 150 years, Old Second has consistently put businesses and individuals throughout the Chicago area first, and we're only getting started. Member FDIC. Equal Housing Lender.

10/30/2026

Don't let home buying frighten you! From down payments to rates and everything in between, our mortgage lenders are here to make the home financing process less frightening-and more straightforward. Connect with an Old Second mortgage lender today: https://ow.ly/vs8G50ZTBzE

10/23/2026

O2 Weekly Economic Update:
Oil Prices Climb as Geopolitical Tensions Intensify
https://ow.ly/rnQW5100IrE

10/16/2026

O2 Weekly Economic Update:
U.S. Eases Russian Diesel Sanctions in Bid to Lower Fuel Costs
https://ow.ly/h1tS50ZYECt

10/12/2026

All O2 branches are closed today (10/12) in observance of Columbus Day, but you can still bank with us anytime through ATM or O2 Digital Banking. Oldsecond.com

10/09/2026

O2 Weekly Economic Update:
Media Consolidation Continues as Skydance Emerges
https://ow.ly/p8Rn50ZWwin

10/08/2026

Friendly reminder that all O2 branches will be closed on Monday, October 12th in observance of Columbus Day.

10/02/2026

O2 Weekly Economic Update:
AI Leaders Commit to Safety as White House Pushes Innovation Forward
https://ow.ly/WY3g50ZU8xG

09/25/2026

O2 Weekly Economic Update:
Oil Falls on De-Escalation Hopes
https://ow.ly/o4Lj50ZREoq

09/18/2026

O2 Weekly Economic Update:
Fed Raises Rates for First Time in Over Three Years
https://ow.ly/QGOh50ZPmsr

06/12/2018

GET A TRUE ADVANTAGE WITH OLD SECOND BANK.

Add to your Money Connection Checking Account a Money Builder Savings account with $10,000 or more, and earn 1.25% interest rate for 6 months (0.67% APY on balances of$25,000 - $49,999; 0.69% APY on balances of $50,000 or more).5

Address

6400 West North Avenue
Chicago, IL
60707

Opening Hours

Monday	9am - 5pm
Tuesday	9am - 5pm
Wednesday	9am - 5pm
Thursday	9am - 5pm
Friday	9am - 5pm
Saturday	9am - 1pm

Telephone

+18778660202

Website

http://www.oldsecond.com/?y_source=1_OTY3NjM3OC01NTktbG9jYXRpb24ud2Vic2l0ZQ%3D%3D

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