The Service Review and Sphere Updates for the North Desert region are defined by the following communities:
- Adelanto Community including El Mirage
- Apple Valley Community
- Barstow Community including Barstow Heights, Hinkley, Grandview, Hodge, and Lenwood
- Daggett, Yermo, Newberry Springs, and Harvard Communities
- Helendale Community
- Hesperia Community including Oak Hills and Summit Valley
- Lucerne Valley Community
- Phelan/Piñon Hills and Wrightwood Communities
- Red Mountain, Trona, and Searles Valley Communities
- Victorville Community including Baldy Mesa, Oro Grande, and Spring Valley Lake
- Regional Agencies for the North Desert Region
- County Service Area 40 (Elephant Mountain – Television)
- County Service Area 60 (Apple Valley Airport)
- Mojave Desert Resource Conservation District (North Desert, South Desert and Mountain Regions)
- Mojave Water Agency (North Desert and South Desert Regions)
- Victor Valley Wastewater Reclamation Authority