Contact NTUA
Navajo Tribal Utility Authority
PO Box 170, Fort Defiance, AZ 86504
928-729-5721 or 1-800-528-5011
Office Hours
• District Locations
Monday to Thursday 7 AM to 6 PM
Friday 7 AM to 5 PM
• Sub-Office Locations
Monday to Friday 8 AM to 5 PM
NTUA Offices
Chinle District
PO Box 549, Chinle, AZ 86503
Crownpoint District
PO Box 1825, Crownpoint, NM 87313
Dilkon District
HC 63 Box D, Winslow, AZ 86047
Fort Defiance District
PO Box 587, Fort Defiance, AZ 86504
Kayenta District
PO Box 37, Kayenta, AZ 86033
Shiprock District
PO Box 1749, Shiprock, NM 87420
Nageezi Sub-Office
PO Box 1749, Shiprock, NM 87420
Red Mesa Sub-Office
PO Box 1749, Shiprock, NM 87420
Tuba City District
PO Box 398, Tuba City, AZ 86045
www.ntua.com
Navajo Tribal Utility Authority • P.O. Box 170, Fort Defiance, AZ 86504 • Phone: 1-800-528-5011 Copyright © 2025 NTUA - A proud Enterprise of the Navajo Nation