Water Distribution Service Companies
| Hamden Ridge Water System (Burnt Corn, AL) |
| Hampton Borough Water Co (Hampton, NJ)
Primarily Serving: Bethlehem, PA - Allentown, PA - New Brunswick, NJ - Edison, NJ |
| Han-Man Water Sewer (Orange, TX)
Primarily Serving: Port Arthur, TX - Beaumont, TX - Lake Charles, LA - Baytown, TX |
| Harbor Beach Water Works (Harbor Beach, MI)
Primarily Serving: Saginaw, MI - Flint, MI - Rochester, MI - Pontiac, MI |
| Harpers Ferry Water Works (Harpers Ferry, WV)
Primarily Serving: Charles Town, WV - Frederick, MD - Germantown, MD - Reston, VA |
| Harrisburg Water office (Harrisburg, PA)
Primarily Serving: Lancaster, PA - Reading, PA - Towson, MD - Frederick, MD |
| Hartselle Utilities (Hartselle, AL)
Primarily Serving: Decatur, AL - Tanner, AL - Huntsville, AL - Birmingham, AL |
| Harvard Hills Water Corp (Washington, IL)
Primarily Serving: Peoria, IL - Normal, IL - Bloomington, IL - Springfield, IL |
| Hastings Water Billing (Hastings, MN)
Primarily Serving: Saint Paul, MN - Burnsville, MN - Lakeville, MN - Minneapolis, MN |
| Havelock Water-Sewer Billing (Havelock, NC)
Primarily Serving: Jacksonville, NC - Greenville, NC - Wilmington, NC - Rocky Mount, NC |
| Hawthorn Area Water Authority (Hawthorn, PA)
Primarily Serving: Pittsburgh, PA - Youngstown, OH - Erie, PA - Canton, OH |
| Heavener Water office (Heavener, OK)
Primarily Serving: Fort Smith, AR - Canadian, OK - Fayetteville, AR - Springdale, AR |
| Heron Lake Water Shed District (Heron Lake, MN)
Primarily Serving: Sioux Falls, SD - Sioux City, IA - Lakeville, MN - Eden Prairie, MN |
| Hetch Hetchy Water & Power (Moccasin, CA)
Primarily Serving: Merced, CA - Turlock, CA - Modesto, CA - Manteca, CA |
| Hickory Creek Sud (Celeste, TX)
Primarily Serving: McKinney, TX - Allen, TX - Rowlett, TX - Plano, TX |
| High Sierra Estates Water (Alto, NM)
Primarily Serving: Las Cruces, NM - El Paso, TX - Albuquerque, NM - Rio Rancho, NM |
| High View Water District (Denver, CO)
Primarily Serving: Westminster, CO - Arvada, CO - Aurora, CO - Thornton, CO |
| Hill County Water Supply Corp (Whitney, TX)
Primarily Serving: Waco, TX - Arlington, TX - Fort Worth, TX - Grand Prairie, TX |
| Hillsdale Waste Water Trtmnt (Hillsdale, MI)
Primarily Serving: Battle Creek, MI - Ann Arbor, MI - Toledo, OH - Kalamazoo, MI |
| Holtville Water System Inc (Deatsville, AL)
Primarily Serving: Montgomery, AL - Auburn, AL - Birmingham, AL - Tuscaloosa, AL |
| Hoover Hill Water & Sanitation (Boulder, CO)
Primarily Serving: Broomfield, CO - Longmont, CO - Arvada, CO - Westminster, CO |
| Hope Water & Light (Hope, AR)
Primarily Serving: Jefferson, TX - Bossier City, LA - Shreveport, LA - Pine Bluff, AR |
| Hopkinsville Water Env Auth (Hopkinsville, KY)
Primarily Serving: Clarksville, TN - Bowling Green, KY - Owensboro, KY - Nashville, TN |
| Hughes Community Water (Hughes, AR)
Primarily Serving: Memphis, TN - Jonesboro, AR - Pine Bluff, AR - Jackson, TN |
| Hurst Creek Municipal Utility (Austin, TX)
Primarily Serving: Cedar Park, TX - Round Rock, TX - Georgetown, TX - San Marcos, TX |
