List of National Union Bank Stores in Sparta, WI Outlet Note Regular Brands National Union Bank Wisconsin Sparta Rating 4.9 based on 100 votes Official Website http://www.ucnb.com/ Products Online Banking Credit Cards Insurance Savings Investments Saving Bank Saving Plans NameAddressPhone Name/Address/Phone National Union Bank outlet - Sparta 124 W Oak St (608) 269-6737 People Also Viewed