300 Main Street, Suite 200, Dubuque, IA 52001
Mon – Thurs 8 am – 5 pm, Fri 8 am – 12 pm
Menu

ALLIANT ENERGY

  • UTILITIES
1000 Main Street
Dubuque, IA 52001
(800) 255-4268
(563) 587-4567 (fax)
  • About

    Alliant Energy is the parent company for Interstate Power and Light, a utility subsidiary providing electric service to Dubuque. For more information visit www.alliantenergy.com

  • Whom to Contact