Water Distribution Service Companies
| Charleston Utilities Inc (Charleston, MS)
Primarily Serving: Memphis, TN - Pine Bluff, AR - Jackson, MS - North Little Rock, AR |
| Chester Water Authority (Nottingham, PA)
Primarily Serving: Newark, DE - Lancaster, PA - Wilmington, DE - Towson, MD |
| Cheyenne Arapaho Tribes Water (Concho, OK)
Primarily Serving: Edmond, OK - Oklahoma City, OK - Norman, OK - Lawton, OK |
| Chilton Water Authority (Jemison, AL)
Primarily Serving: Birmingham, AL - Montgomery, AL - Tuscaloosa, AL - Auburn, AL |
| Church Point Water Works Syst (Church Point, LA)
Primarily Serving: Lafayette, LA - Lake Charles, LA - Baton Rouge, LA - Port Arthur, TX |
| City of Elizabeth City Water (Elizabeth City, NC)
Primarily Serving: Chesapeake, VA - Portsmouth, VA - Virginia Beach, VA - Suffolk, VA |
| City of Grand island (Grand Island, NE)
Primarily Serving: Lincoln, NE - Omaha, NE - Bellevue, NE - Council Bluffs, IA |
| City of North Middletown (North Middletown, KY)
Primarily Serving: Lexington, KY - Cincinnati, OH - Louisville, KY - Hamilton, OH |
| City Waterworks (Eupora, MS)
Primarily Serving: Jackson, MS - Tuscaloosa, AL - Memphis, TN - Jackson, TN |
| Clarkedale-Jericho Water Syst (West Memphis, AR)
Primarily Serving: Memphis, TN - Jonesboro, AR - Jackson, TN - North Little Rock, AR |
| Clarksburg Water Board (Clarksburg, WV)
Primarily Serving: Pittsburgh, PA - Canton, OH - Youngstown, OH - Charles Town, WV |
| Cmc Supply (Columbia, TN)
Primarily Serving: Franklin, TN - Murfreesboro, TN - Nashville, TN - Clarksville, TN |
| Coal Hill Court Clerk (Coal Hill, AR)
Primarily Serving: Fort Smith, AR - Fayetteville, AR - Springdale, AR - Rogers, AR |
| Columbia Irrigation District (Kennewick, WA)
Primarily Serving: Pasco, WA - Yakima, WA - Enumclaw, WA - Spokane, WA |
| Combined Consumer Water Supply (Quinlan, TX)
Primarily Serving: Rowlett, TX - Mesquite, TX - Garland, TX - Allen, TX |
| Commissioners of Public Works (Charleston, SC)
Primarily Serving: North Charleston, SC - Mount Pleasant, SC - Savannah, GA - Columbia, SC |
| Consolidated Pwsd 1 (Lamar, MO)
Primarily Serving: Joplin, MO - Springfield, MO - Rogers, AR - Springdale, AR |
| Coral Springs Water & Sewer (Pompano Beach, FL)
Primarily Serving: Coral Springs, FL - Margate, FL - Coconut Creek, FL - Deerfield Beach, FL |
| Corrigan Corp of America (Gurnee, IL)
Primarily Serving: Waukegan, IL - Kenosha, WI - Palatine, IL - Arlington Heights, IL |
| Cortlandt Water District Supt (Cortlandt Manor, NY)
Primarily Serving: White Plains, NY - Greenwich, CT - Yonkers, NY - Danbury, CT |
| Cottonwood Water Works (Cottonwood, AZ)
Primarily Serving: Flagstaff, AZ - Peoria, AZ - Surprise, AZ - Glendale, AZ |
| Coventry Woods Waste Water (Lexington, SC)
Primarily Serving: Columbia, SC - Augusta, GA - Rock Hill, SC - Gastonia, NC |
| Crains Run Water & Sewer Dist (Miamisburg, OH)
Primarily Serving: Dayton, OH - Middletown, OH - Hamilton, OH - Springfield, OH |
| Crosby Municipal (Crosby, TX)
Primarily Serving: Baytown, TX - Pasadena, TX - Houston, TX - League City, TX |
| Crowley's Ridge Water Assn (Harrisburg, AR)
Primarily Serving: Jonesboro, AR - Memphis, TN - North Little Rock, AR - Conway, AR |
