We found 29 public water systems that could serve the same population as Port Perry Service (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Perryville | Perryville | 8,225 | 0 | 30 |
| Perry Co Pwsd 1 | Perryville | 1,970 | 0 | 19 |
| S K & M Water Co Inc | County of Perry | 733 | 0 | 8 |
| Perry Co Pwsd 2 | Perryville | 700 | 0 | 7 |
| Altenburg | Altenburg | 356 | 0 | 6 |
| Frohna | Frohna | 350 | 0 | 7 |
| Lake Kah Tan Da Estates Inc | County of Perry | 277 | 0 | 7 |
| Perryville Municipal Airpor | County of Perry | 250 | 0 | 0 |
| Perryville Industrial Park | Perryville | 250 | 0 | 0 |
| St Maurus School | St Maurus Schoo | 250 | 0 | 0 |
| Bois Brule Elem School | Perryville | 160 | 0 | 0 |
| Rhodes 101 Convenience Store | County of Perry | 100 | 0 | 0 |
| The Switch | The Switch | 70 | 0 | 0 |
| St Joseph School | Perryville | 65 | 0 | 0 |
| Salem Lutheran Church | Farrar | 60 | 0 | 0 |
| Energy Panel Structures Inc | County of Perry | 60 | 0 | 0 |
| Biehle Social Club | Biehle Social | 54 | 0 | 0 |
| Bolch #21 | County of Perry | 54 | 0 | 0 |
| Buchheit Inc | Perryville | 50 | 0 | 0 |
| Meta Oil, Inc #507 | County of Perry | 50 | 0 | 0 |
| Kampalot Koa Inc Campgr | Kampalot Koa | 50 | 0 | 0 |
| Farrar Water Association | Farrar | 42 | 0 | 0 |
| Bills Place | County of Perry | 40 | 0 | 0 |
| St Marys Seminary | Perryville | 30 | 0 | 0 |
| Kampalot Koa, Inc | Kampalot Koa | 25 | 0 | 0 |
| Farrar Water Assoc | Farrar | 25 | 0 | 0 |
| Doe Run Company-higdon Mine | County of Perry | 25 | 0 | 0 |
| ZION LUTHERAN CHURCH | Zion Lutheran | 25 | 0 | 0 |
| Port Perry Subdivision | Port Perry Subd | 2 | 0 | 0 |