Business

Old Second National Bank

Ranked #788 among U.S. mortgage originators by 2025 volume.

Bank & Mortgage Lender · Finance / Lending · Downers Grove, IL · Nationwide (USA)

Ranked #788 of U.S. mortgage lenders by 2025 origination volume (HMDA) · $336.3M across 1,172 loans

Source: Home Mortgage Disclosure Act (HMDA) 2025 public data.

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Old Second National Bank is a U.S. bank and mortgage lender, ranked #788 nationwide by 2025 mortgage origination volume (HMDA). Based in Downers Grove, IL.

What we offer

Mortgage lending plus banking services across the United States.