Old Second National Bank

Call Directions Website

Old Second National Bank 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.

Don't let home buying frighten you! From down payments to rates and everything in between, our mortgage lenders are here...
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

O2 Weekly Economic Update:U.S. Eases Russian Diesel Sanctions in Bid to Lower Fuel Costshttps://ow.ly/h1tS50ZYECt ...
10/16/2026

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

All O2 branches are closed today (10/12) in observance of Columbus Day, but you can still bank with us anytime through A...
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

Friendly reminder that all O2 branches will be closed on Monday, October 12th in observance of Columbus Day.
10/08/2026

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

O2 Weekly Economic Update:AI Leaders Commit to Safety as White House Pushes Innovation Forwardhttps://ow.ly/WY3g50ZU8xG ...
10/02/2026

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

GET A TRUE ADVANTAGE WITH OLD SECOND BANK.
03/09/2018

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 1.00% interest rate for 6 months (0.54% APY on balances of$25,000 - $49,999; 0.56% APY on balances of $50,000 or more).5

Address

522 Sugar Grove Parkway
Sugar Grove, IL
60554

Opening Hours

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

Telephone

+18778660202

Website

Alerts

Be the first to know and let us send you an email when Old Second National Bank posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Shortcuts

Share

Category

Nearby finance companies

Other Sugar Grove finance companies

Show All