Welcome to the Official Website of Mni Wašté Water Company

The Mni Wašté Water Company is a tribally chartered entity and serves 14,000 members within the Dewey and Ziebach counties on the Cheyenne River Lakota Reservation in South Dakota.

Bill Payment Options

Looking for the most convenient way to pay your bill? We offer a wide variety of payment options to our customers. Simply choose the option that best suits your needs... Learn more...

Celebrating Fall Festivals: A Season of Community and Tradition

Celebrating Fall Festivals: A Season of Community and Tradition

October 01, 2025

As the air turns crisp and the leaves transform into brilliant shades of red and gold, communities across the country gather to celebrate the magic of fall. From pumpkin patches and hayrides to harvest fairs and cider tastings, fall festivals bring people together in a season of warmth, tradition, and joy.