Old Second National Bank

Old Second National Bank is a credit union in Darien, IL, serving individuals and businesses with a range of financial services including checking and savings accounts, home loans, auto and personal loans, commercial banking, and retirement services. The bank emphasizes personalized service, designing products with customers’ unique needs in mind and prioritizing their best interests. With over 54 branch locations and more than 75 ATMs throughout the Chicagoland area, it offers convenient access to banking services. The bank has been serving the community since 1871, building its reputation on long-term relationships and community investment. It maintains a strong customer rating of 4.80, reflecting a high level of satisfaction among its members.

The bank’s approach centers on supporting its customers and employees alike. It highlights a commitment to hiring locally and fostering a culture where employees are developed through training, career advancement opportunities, and a tuition reimbursement program. The bank also emphasizes security, offering resources to help customers identify and avoid scams such as impersonation calls, phishing attempts, and Zelle® fraud. It encourages customers to verify unsolicited communications through known representatives and provides guidance on safe digital banking practices.

Old Second National Bank is located on S Cass Ave in Darien, IL, within the broader Chicagoland region. Its extensive network of branches and ATMs is designed to serve local residents and businesses, with a focus on community engagement and long-term financial well-being. The bank’s enduring presence since 1871 underscores its deep roots in the area and its consistent dedication to customer-first values. It stands as a trusted financial partner for individuals and businesses throughout Darien and the surrounding communities.