Headquarted:
Chartered:
Website: http://www.oldsecond.com
 | A sign for the Old Second Bank branch in Aurora, IL. (September, 2006) |
 | A sign for the Old Second Bank branch in Ottawa, IL. (July, 2006) |
 | A sign for the Old Second Bank branch in Plano, IL. (January, 2007) |
 | A sign for the Old Second Bank in Joliet, IL. (March, 2010) |
 | A sign for the Old Second Bank branch in Wasco, IL. (June, 2010) |
 | A sign for the Old Second Bank branch in Maple Park, IL. (June, 2010) |
 | A sign for the Old Second Bank branch in Sycamore, IL. (June, 2010) |
 | A sign for the Old Second Bank branch in Frankfort, IL. (July, 2011) |