Water Distribution Service Companies
| Potter Valley Irrigation Dist (Potter Valley, CA)
Primarily Serving: Santa Rosa, CA - Chico, CA - Napa, CA - Petaluma, CA |
| Preston Water District (Preston, OK)
Primarily Serving: Broken Arrow, OK - Tulsa, OK - Canadian, OK - Cleveland, OK |
| Public Utilities-Water Div (Ketchikan, AK) |
| Public Water District Supply 1 (Licking, MO)
Primarily Serving: Springfield, MO - Columbia, MO - O Fallon, MO - Saint Peters, MO |
| Public Water Supply (Camden Point, MO)
Primarily Serving: Saint Joseph, MO - Kansas City, KS - Kansas City, MO - Independence, MO |
| Public Water Supply Dist 1 (Mercer, MO)
Primarily Serving: West Des Moines, IA - Des Moines, IA - Saint Joseph, MO - Ames, IA |
| Public Water Supply District (Oregon, MO)
Primarily Serving: Saint Joseph, MO - Kansas City, KS - Kansas City, MO - Shawnee, KS |
| Public Water Supply District (O Fallon, MO)
Primarily Serving: Saint Peters, MO - Saint Charles, MO - Florissant, MO - Saint Louis, MO |
| Public Water Supply District (Imperial, MO)
Primarily Serving: Saint Louis, MO - Saint Charles, MO - Florissant, MO - Saint Peters, MO |
| Pump Doctors (Dillsburg, PA)
Primarily Serving: Lancaster, PA - Frederick, MD - Towson, MD - Ellicott City, MD |
| R & T Water Supply Assn (Ray, ND)
Primarily Serving: Bismarck, ND |
| Rae Water & Sewer (Bozeman, MT)
Primarily Serving: Billings, MT - Great Falls, MT - Idaho Falls, ID - Missoula, MT |
| Raines & Welsh & Sons Contrs (West Haverstraw, NY)
Primarily Serving: White Plains, NY - Yonkers, NY - Greenwich, CT - Mount Vernon, NY |
| Raisin City Water District (Fresno, CA)
Primarily Serving: Clovis, CA - Madera, CA - Hanford, CA - Visalia, CA |
| Ramona Municipal Water Dist (Ramona, CA)
Primarily Serving: Escondido, CA - Santee, CA - El Cajon, CA - San Marcos, CA |
| Rapidriver Water Sewer (Riggins, ID)
Primarily Serving: Boise, ID - Meridian, ID - Nampa, ID - Missoula, MT |
| Raymore City Water Billing (Raymore, MO)
Primarily Serving: Lees Summit, MO - Overland Park, KS - Blue Springs, MO - Independence, MO |
| Reade Township Mun Authority (Blandburg, PA)
Primarily Serving: Pittsburgh, PA - Frederick, MD - Charles Town, WV - Lancaster, PA |
| Red Lake Watershed District (Thief River Fall, MN) |
| Reedtown Water Assn (Utica, MS)
Primarily Serving: Jackson, MS - Hattiesburg, MS - Monroe, LA - Baton Rouge, LA |
| Reeves County Water (Balmorhea, TX)
Primarily Serving: Odessa, TX - Midland, TX - El Paso, TX - San Angelo, TX |
| Rio Brazos Property Owners (Weatherford, TX)
Primarily Serving: Fort Worth, TX - North Richland Hills, TX - Arlington, TX - Euless, TX |
| Ripley Water & Sewer Dept (Ripley, NY)
Primarily Serving: Erie, PA - Buffalo, NY - Niagara Falls, NY - East Amherst, NY |
| River Road Water Dist (Eugene, OR)
Primarily Serving: Springfield, OR - Corvallis, OR - Salem, OR - Bend, OR |
| River Valley Winwater Works Co (Russellville, AR)
Primarily Serving: Conway, AR - Little Rock, AR - North Little Rock, AR - Fort Smith, AR |
