Orange County Plumbing Service Area's
- Anaheim- 92801, 92802, 92803, 92804, 92805, 92806, 92807, 92808, 92812, 92814, 92815, 92816, 92817, 92825, 92850, 92899
- Brea-92821, 92822, 92823
- Buena Park- 90620, 90621, 90622, 90624
- Cypress - 90630
- Costa Mesa - 92626, 92627, 92628
- Fullerton - 92831, 92832, 92833, 92834, 92835, 92836, 92837, 92838
- Garden Grove - 92840, 92841, 92842, 92843, 92844, 92845, 92846
- Huntington Beach - 92605, 92615, 92646, 92647, 92648, 92649
- Irvine - 92602, 92603, 92604, 92606, 92612, 92614, 92616, 92617, 92618, 92619, 92620, 92623, 92650, 92697
- La Habra - 90631, 90632, 90633
- Laguna Beach - 92607, 92651,92652, 92653, 92654, 92656
- Laguna Niguel - 92607, 92677
- Newport Beach - 92657, 92658, 92659, 92660, 92661, 92662, 92663
- Orange - 92856, 92857, 92858, 92859, 92861, 92862, 92863, 92864,92865, 92866, 92867, 92868, 92869
- Orange Grove - 93646
- Santa Ana - 92701, 92702, 92703, 92704, 92705, 92706, 92707, 92708, 92711, 92712, 92725, 92728, 92735, 92799
- Tustin - 92780, 92781, 92782
- Villa Park - 92861, 92867
- Westminster - 92683, 92684, 92685
- Yorba Linda - 92885, 92886, 92887
