We found 41 public water systems that could serve the same population as Kellogg Water Supply (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Ia Regional Utilities Assoc (waverly) | Waverly | 34,245 | 87 | 2 |
| Central Ia Water Assn (newton) | Newton | 28,250 | 0 | 0 |
| Newton Water Supply | Newton | 16,262 | 23 | 3 |
| Colfax Water Supply | Colfax | 2,093 | 0 | 10 |
| Monroe Water Supply | Monroe | 1,830 | 0 | 5 |
| Prairie City Water Works | Prairie City | 1,680 | 0 | 7 |
| Baxter Water Supply | Baxter | 1,101 | 0 | 2 |
| Rock Creek State Park | County of Jasper | 1,010 | 0 | 0 |
| Sully Muni Water Works | Sully | 821 | 0 | 22 |
| Caseys General Store - Colfax | Colfax | 642 | 0 | 0 |
| Lynnville Water Dept | Lynnville | 379 | 0 | 7 |
| Mingo Water Department | Mingo | 302 | 0 | 6 |
| Kum And Go Store (colfax) | Colfax | 302 | 0 | 0 |
| Correctional Release Center | Newton | 300 | 0 | 0 |
| Sunrise Terrace Mhc | Newton | 275 | 0 | 3 |
| Godwins Colfax Mobile Home Par | County of Jasper | 250 | 0 | 0 |
| Wickerson Farms | County of Jasper | 250 | 0 | 0 |
| Mariposa Pk-jasper Conservatio | County of Jasper | 250 | 0 | 0 |
| Godwin Trailer Park | County of Jasper | 230 | 0 | 0 |
| Oakland Acres-c Thompson | County of Jasper | 166 | 0 | 0 |
| Stuckey's Pecan Shoppe | County of Jasper | 160 | 0 | 0 |
| Central Ia Water Assn (pella) | Pella | 158 | 0 | 0 |
| Mclains Restaurant | County of Jasper | 155 | 0 | 0 |
| Colfax 66 Service Inc. | County of Jasper | 150 | 0 | 0 |
| Bronco Gas For Less | County of Jasper | 150 | 0 | 0 |
| Kopper Kettle, Inc. | Colfax | 150 | 0 | 0 |
| Ashton Wildwood County Park | Mingo | 150 | 0 | 0 |
| Christian Conference Center | Newton | 146 | 0 | 10 |
| Beacon Campground | County of Jasper | 145 | 0 | 0 |
| Bethany United Church Of Christ | County of Jasper | 100 | 0 | 0 |
| Hidden Valley Koa | County of Jasper | 75 | 0 | 0 |
| Ira Water Association | Ira | 62 | 0 | 0 |
| Farmer's Supply Store | County of Jasper | 35 | 0 | 0 |
| Sparks Bay | County of Jasper | 25 | 0 | 0 |
| Lake Pla-mor | County of Jasper | 25 | 0 | 0 |
| American Legion | County of Jasper | 25 | 0 | 0 |
| Vale Drive In Theater | County of Jasper | 25 | 0 | 0 |
| Tae Corp Nickerson Farms | County of Jasper | 25 | 0 | 0 |
| La Corsette | County of Jasper | 25 | 0 | 0 |
| Roxies Campground | County of Jasper | 25 | 0 | 0 |
| Ashton Wildwood Pk-jasper Cons | County of Jasper | 25 | 0 | 0 |