We're here to help you

We want to hear from you. Below are all of the ways you can get in touch with us.

Browse our help topics

Get answers to frequently asked questions about your online account, bills, payments, energy savings and more.

Visit Help Center

Call us

Customer Service: 1-800-4NIPSCO (1-800-464-7726)

Gas Emergencies: 1-800-634-3524


Relay: 1-800-635-0952

Email us

Use our online form to send us a question or comment. We'll respond to your message during business hours.

Send an Email

Send us a document

Need to send us a picture of your ID or some other document? 

Upload Here

Mail us

For payments


P.O. Box 13007

Merrillville, IN 46411

For customer service


801 E. 86th Avenue

Merrillville, IN 46410

For legal notices

Corporation Service Company

135 North Pennsylvania Street, Suite 1610

Indianapolis, IN 46204

Connect with us

Connect with us on FacebookFacebook

Follow us to stay updated on news and events.

Follow us on TwitterTwitter

Join our conversation, share your thoughts and questions.

Connect with us on LinkedInLinkedIn

Learn about what makes us great – our employees.

See the latest videos on YouTubeYouTube

Watch and learn about key initiatives.

Have an emergency?

Natural Gas: If you smell gas, think you have a gas leak, have carbon monoxide symptoms or have some other gas emergency situation, go outside and call 911 and then our emergency number 1-800-634-3524.
Electric: For any electric emergency, including a downed power line, power outage or other electric-related situation, please call 1-800-464-7726.