ABOUT LOGIN Security National Bank | Homepage Link Subscribe for Free CUSTOMER SERVICE What matters to you? ABOUT Contact Security National Bank Have a question? We're here to help. Reach out to a customer service representative by submitting the online form below. Phone number: Call our customer service center at (712) 277-6500. If you are having issues with the local number, try our toll-free line at 1-800-475-4762. In person: Visit our branch locations page to find the Security National Bank nearest to you. To report a lost or stolen card: Immediately call 1-800-236-2442 (available 24 hours a day), then notify your usual location during business hours. Customer Service Contact Form NOTE: Please do not use this form to send confidential information such as account numbers, passwords, tax returns, social security numbers or any other sensitive data. Please call or visit your local branch if this information needs to be shared. Branch Locations Map Satellite Keyboard shortcuts Map data ©2021 Google Terms of Use Report a map error Main Bank Sioux City, IA 51101 712-277-6500 M-F | 9A-5P VIEW ALL LOCATIONS Customer Favorites Rates Calculators Hours & Locations Newsletter Archives Reorder Checks Find a Routing Number Helpful Links Contact Us Report a Lost or Stolen Card Security Insurance Agency Privacy Policy Brokerage Subscribe to Our Newsletter Get the latest updates on fraud prevention, exclusive Bank features, financial tips and upcoming events. First Name* Last Name* Email* Are you currently a Security National Bank customer?* Yes No 601 Pierce Street, Sioux City, IA 51101 (712) 277-6500 ©2021 Security National Bank | Website by Blue Compass