Irrigation Districts
- Bard Water District
- Buckeye Water Conservation & Drainage District
- Central Arizona Irrigation & Drainage District
- Central Arizona Project
- Gila River Indian Community
- Harquahala Valley Irrigation & Drainage District
- Hohokam Irrigation & Drainage District
- Imperial Irrigation District
- Maricopa-Stanfield Irrigation & Drainage District
- Maricopa Water District
- New Magma Irrigation & Drainage District
- Paloma Irrigation & Drainage District
- Pima-Maricopa Irrigation Project
- Queen Creek Irrigation District
- San Carlos Irrigation & Drainage District
- Unit B Irrigation & Drainage District
- Yuma Coounty Water Users' Association
