We found 101 public water systems that could serve the same population as Watervliet City (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Albany City | Albany | 101,082 | 25 | 4 |
| Latham Water District | Colonie | 78,500 | 32 | 12 |
| Bethlehem Wd No 1 | Bethlehem | 31,000 | 50 | 11 |
| Guilderland Town Wd | Guilderland | 30,000 | 33 | 20 |
| Cohoes City | Cohoes | 15,550 | 41 | 24 |
| Colonie Village | Colonie | 8,030 | 1 | 1 |
| Ravena Village | Ravena | 4,500 | 0 | 5 |
| Menands Village | Menands | 3,900 | 0 | 6 |
| Voorheesville Village | Voorheesville | 3,100 | 0 | 4 |
| Green Island Village | Green Island | 2,900 | 0 | 1 |
| Altamont Village | Altamont | 2,000 | 0 | 4 |
| Berne Knox Highschool | Berne | 1,400 | 0 | 16 |
| Bethlehem Wd No 1 - Clapper Road | Bethlehem | 730 | 0 | 0 |
| Feura Bush Wd | New Scotland | 450 | 0 | 1 |
| Rolling Hills Mhp | Coeymans | 444 | 0 | 5 |
| Clarksville Water District | New Scotland | 430 | 0 | 1 |
| Northeast W.d. | New Scotland | 370 | 0 | 1 |
| New Salem Wd | New Scotland | 350 | 0 | 0 |
| WOODSTOCK LAKE ASSOC INC | Berne | 300 | 0 | 0 |
| Colonie Country Club | Voorheesville | 300 | 0 | 3 |
| Thompsons Lake Campsite State | Knox | 280 | 0 | 0 |
| Camp Pinnacle | New Scotland | 250 | 0 | 7 |
| Lawson Lake County Park | Coeymans | 250 | 0 | 0 |
| Saratoga Winners | Colonie | 250 | 0 | 0 |
| Mendels Olympic Grove | County of Albany | 250 | 0 | 0 |
| Alcove Store | Coeymans | 250 | 0 | 0 |
| Westerlo Town Park | Westerlo | 240 | 0 | 0 |
| Wildwood School | Guilderland | 225 | 0 | 7 |
| Westerlo Town Water Supply | Westerlo | 220 | 0 | 2 |
| Rensselaerville Wd | Rensselaerville | 200 | 0 | 28 |
| Stardust Motor Inn | Colonie | 200 | 0 | 3 |
| Flemings Mobile Home Park | Coeymans | 200 | 0 | 39 |
| Knox Country Store | Knox | 200 | 0 | 0 |
| Pine Ridge Estates | Coeymans | 175 | 0 | 2 |
| Blue Circle Atlantic Plant | Coeymans | 150 | 0 | 0 |
| Six Mile Water Works | Albany | 150 | 0 | 0 |
| Rks Winners Circle Ltd | Ravena | 130 | 0 | 0 |
| Sycamore Country Club | Coeymans | 125 | 0 | 13 |
| Heldervale Water District | New Scotland | 117 | 0 | 0 |
| Pine Mobile Home Park | Berne | 110 | 0 | 0 |
| Hannay Reels | Westerlo | 105 | 0 | 0 |
| John Boyd Thatcher State Park | Berne, New Scotland | 100 | 0 | 0 |
| Swift Road Wd | New Scotland | 100 | 0 | 0 |
| Ferriero's Cafe & Deli | Coeymans | 100 | 0 | 0 |
| Governor Motor Inn | Guilderland | 100 | 0 | 0 |
| Westerlo Southside Wd | Westerlo | 100 | 0 | 0 |
| Callanan Industries | Colonie | 100 | 0 | 0 |
| Maple Inn | Berne | 90 | 0 | 0 |
| South Albany Water District | Bethlehem | 80 | 0 | 0 |
| Kountry Knolls | Knox | 80 | 0 | 0 |
| Heavenly Vision | Westerlo | 75 | 0 | 0 |
| Five Rivers Education Center | New Scotland | 70 | 0 | 0 |
| Carey Conference Center | Rensselaerville | 60 | 0 | 0 |
| Knoxville Park | Knox | 60 | 0 | 0 |
| Vince Annas Restaurant | Westerlo | 60 | 0 | 0 |
| Reinharts Shell Inn | Westerlo | 55 | 0 | 0 |
| Green Acres Mhp | Knox | 55 | 0 | 0 |
| Metweld, Inc. | Guilderland | 54 | 0 | 0 |
| Altamont Orchards Inc. | Guilderland | 52 | 0 | 0 |
| Stewarts #277 | New Scotland | 51 | 0 | 0 |
| New Maple Inn | Berne | 50 | 0 | 0 |
| Albany Obedience Club | County of Albany | 50 | 0 | 0 |
| Elegant Touch | Guilderland | 50 | 0 | 0 |
| Picards Grove | New Scotland | 50 | 0 | 0 |
| Leaning Evergreen Mhp | Westerlo | 50 | 0 | 0 |
| Town Square Media | Colonie | 50 | 0 | 0 |
| Highlands Restaurant | Knox | 50 | 0 | 0 |
| The Spot | Coeymans | 50 | 0 | 0 |
| Font Grove Water District | New Scotland | 45 | 0 | 0 |
| Roseys Rustic Cabin | Rensselaerville | 45 | 0 | 0 |
| Midway Cafe | Coeymans | 37 | 0 | 0 |
| Medusa General Store | Rensselaerville | 34 | 0 | 0 |
| Mapletree Apts | Westerlo | 30 | 0 | 0 |
| Helderberg Christian School | Westerlo | 30 | 0 | 0 |
| Helderberg Senior Service | Westerlo | 30 | 0 | 0 |
| Foxenkill Tavern | Knox | 30 | 0 | 0 |
| Joshua Tree Cafe | County of Albany | 30 | 0 | 0 |
| Nys Park Police Academy | Rensselaerville | 27 | 0 | 0 |
| Indian Ladder Farm Store | New Scotland | 26 | 0 | 0 |
| Township Tavern | Knox | 25 | 0 | 0 |
| Frenchs Hollow Golf Course | Guilderland | 25 | 0 | 0 |
| Countryside Mart #6 | Berne | 25 | 0 | 0 |
| Meads Corner Inn | New Scotland | 25 | 0 | 0 |
| Westerlo Food Mart | Westerlo | 25 | 0 | 0 |
| Hilltown Cafe | Rensselaerville | 25 | 0 | 0 |
| West Winds | Rensselaerville | 25 | 0 | 0 |
| Casa Mias Italian Spec | Berne | 25 | 0 | 0 |
| Miller Road Llc | Coeymans | 25 | 0 | 0 |
| Fox Creek Market | Berne | 25 | 0 | 0 |
| Po Boys Cafe | Berne | 25 | 0 | 0 |
| The Big Guy | Rensselaerville | 25 | 0 | 0 |
| Boehms Apple Barn | Coeymans | 25 | 0 | 0 |
| Cousins Fish Market | Albany | 25 | 0 | 0 |
| Geldner Bakery | Rensselaerville | 25 | 0 | 0 |
| Homestead Bake Shoppe | Guilderland | 25 | 0 | 0 |
| Larrys Vineyard & Winery | Guilderland | 25 | 0 | 0 |
| Schwans Sales - Guilderland | Colonie | 25 | 0 | 0 |
| Lafarge Quarry | Coeymans | 20 | 0 | 0 |
| Spaulding & Rogers | New Scotland | 20 | 0 | 0 |
| Hidden Meadows Golf | Bethlehem | 15 | 0 | 0 |
| Knox Reformed Church | Knox | 10 | 0 | 0 |