We found 102 public water systems that could serve the same population as Treynor Water Department (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Council Bluffs Water Works | Council Bluffs | 63,795 | 39 | 2 |
| Regional Water | Avoca | 4,065 | 0 | 9 |
| Carter Lake Water District | Carter Lake | 3,785 | 0 | 7 |
| Oakland Munic Water Utility | Oakland | 1,527 | 0 | 2 |
| Urban Bluffs - North | Council Bluffs | 1,515 | 0 | 2 |
| Avoca Water Works | Avoca | 1,506 | 0 | 3 |
| YMCA CAMP POKAMOKE | Crescent | 1,500 | 0 | 0 |
| Dot-4 (i80ra 029w & 30e Underwood) | Underwood | 1,190 | 0 | 0 |
| Rondell's Steak House | County of Pottawattamie | 1,000 | 0 | 0 |
| Nickerson | County of Pottawattamie | 1,000 | 0 | 0 |
| Neola Light & Water | Neola | 842 | 0 | 26 |
| Carson Water Supply | Carson | 812 | 0 | 3 |
| Tri Center Community School | Neola | 805 | 0 | 0 |
| Walnut Municipal Utilities | Walnut | 785 | 0 | 14 |
| Sun Oil Co. Restaurant | County of Pottawattamie | 750 | 0 | 0 |
| Iverson Service-mobil Standard | County of Pottawattamie | 750 | 0 | 0 |
| Kerr & Mcgee Station & Rest. | County of Pottawattamie | 750 | 0 | 0 |
| Rodenburg Station Motel Rest | County of Pottawattamie | 700 | 0 | 0 |
| Underwood Water Supply | Underwood | 688 | 0 | 0 |
| Alto Mobile Home Park | County of Pottawattamie | 650 | 0 | 0 |
| Crescent Water Supply | Crescent | 617 | 0 | 11 |
| Underwood Truck Stop | Underwood | 605 | 0 | 0 |
| Minden Water Supply | Minden | 599 | 0 | 8 |
| Malmore Acres Water Service | County of Pottawattamie | 500 | 0 | 0 |
| Arrowhead Park Station Phillips 66 | County of Pottawattamie | 500 | 0 | 0 |
| Beebeetown Community School | County of Pottawattamie | 400 | 0 | 0 |
| Iowa Feed & Grain Company | Crescent | 316 | 0 | 0 |
| Villager Restaurant | Walnut | 313 | 0 | 0 |
| Martin Orchards | Council Bluffs | 310 | 0 | 0 |
| Fellowship Of Faith Christian Center | Oakland | 303 | 0 | 0 |
| Westfair | Council Bluffs | 301 | 0 | 28 |
| I-80 Restaurant & Lounge | County of Pottawattamie | 300 | 0 | 0 |
| Hilltop Food And Fuel | Minden | 265 | 0 | 0 |
| Dot-4 (i-680 Ra 024n Loveland) | Loveland | 255 | 0 | 9 |
| Macedonia Water Supply | Macedonia | 246 | 0 | 16 |
| Paynes Phillips 66 | County of Pottawattamie | 200 | 0 | 0 |
| Honey Creek Dx Station | County of Pottawattamie | 200 | 0 | 0 |
| Burns Brothers Travel Stop | Minden | 200 | 0 | 0 |
| Beebee Town Gas Station | County of Pottawattamie | 200 | 0 | 0 |
| Oakland Foods Llc | County of Pottawattamie | 200 | 0 | 0 |
| Walnut Amoco-bp | County of Pottawattamie | 200 | 0 | 0 |
| Hancock Water Supply | Hancock | 196 | 0 | 10 |
| St Pauls Evangelical Country Church | Council Bluffs | 178 | 0 | 4 |
| Dot-4 (i-680 Ra 023s Loveland) | Loveland | 175 | 0 | 5 |
| U-stop | Council Bluffs | 164 | 0 | 0 |
| Eastern Hills Baptist Church | Council Bluffs | 125 | 0 | 50 |
| L & C Ford Imp. Co. | County of Pottawattamie | 125 | 0 | 0 |
| Mt. Crescent Ski Area | Crescent | 119 | 0 | 0 |
| Kum & Go Store #23 | Neola | 111 | 0 | 0 |
| Lewis And Clark Monument | Council Bluffs | 102 | 0 | 0 |
| Green Hills Aea | Council Bluffs | 100 | 0 | 0 |
| Bent Tree Golf Club | Council Bluffs | 100 | 0 | 0 |
| YMCA CAMP PAHAMOKE | County of Pottawattamie | 100 | 0 | 0 |
| Creighton University Retreat Center | Griswold | 91 | 0 | 0 |
| Desoto Bend Mini Mart | Missouri Valley | 87 | 0 | 0 |
| Horseman Restaurant & Lounge | Crescent | 86 | 0 | 0 |
| Aeroplane Inn - Inactive | County of Pottawattamie | 80 | 0 | 0 |
| Armstrong's 66 Service | County of Pottawattamie | 79 | 0 | 0 |
| The Learning Journey | Council Bluffs | 75 | 0 | 0 |
| Sw Iowa Renewable Energy Llc | Council Bluffs | 60 | 0 | 0 |
| Dot-3 (loveland 060 Scenic View) | Loveland | 55 | 0 | 0 |
| The Learning Journey Ii | Council Bluffs | 54 | 0 | 0 |
| Pottawattamie County Home | County of Pottawattamie | 54 | 0 | 0 |
| Honey Creek Campgrounds | Crescent | 51 | 0 | 0 |
| Fill And Food #7 | Minden | 51 | 0 | 0 |
| Living Hope Community Church | Council Bluffs | 50 | 0 | 0 |
| Lake Public School Office | County of Pottawattamie | 50 | 0 | 0 |
| The Horseman-tavern | County of Pottawattamie | 50 | 0 | 0 |
| Valley View Cafe, Lori Brown (manager) | County of Pottawattamie | 47 | 0 | 0 |
| Quail Run Country Club | Neola | 45 | 0 | 0 |
| Country Village Inn Motel | County of Pottawattamie | 40 | 0 | 0 |
| Metro Paintball Games | Pacific Junction | 39 | 0 | 0 |
| Country Estates Mobile Home Park | Council Bluffs | 35 | 0 | 0 |
| Northern Natural Gas (oakland) | County of Pottawattamie | 35 | 0 | 0 |
| Hitchcock Nature Center | Honey Creek | 32 | 0 | 0 |
| Whispering Hills Vineyard | Carson | 32 | 0 | 0 |
| Town & Country Aqua Club | Council Bluffs | 30 | 0 | 0 |
| Mcclelland Bar & Grill | County of Pottawattamie | 30 | 0 | 0 |
| Wallace Foundation Learning Center | Griswold | 28 | 0 | 0 |
| Underwood Motel | Underwood | 27 | 0 | 0 |
| Treynor Electric Quick Store | Council Bluffs | 26 | 0 | 0 |
| Wabash Greenhouse | Council Bluffs | 26 | 0 | 0 |
| Aeroplane Inn | Honey Creek | 25 | 0 | 0 |
| Council Bluffs Municipal Airport | County of Pottawattamie | 25 | 0 | 0 |
| Lorenz Chemical Co. | County of Pottawattamie | 25 | 0 | 0 |
| The Bittersweet | County of Pottawattamie | 25 | 0 | 0 |
| The Mile Away | Council Bluffs | 25 | 0 | 0 |
| WORD CENTER MINISTRIES | Council Bluffs | 25 | 0 | 0 |
| Prewitt Implement Co. | County of Pottawattamie | 25 | 0 | 0 |
| Botna Bend Pk-pott Conservatio | County of Pottawattamie | 25 | 0 | 0 |
| Arrowhead Pk-pott Conservation | County of Pottawattamie | 25 | 0 | 0 |
| Sw Ia Law Enforcement Training Facility | Council Bluffs | 25 | 0 | 0 |
| Mcclelland, City Of | Mcclelland | 25 | 0 | 0 |
| Love's Country Store | County of Pottawattamie | 25 | 0 | 0 |
| Fidelty Escrow Corporation | County of Pottawattamie | 25 | 0 | 0 |
| V F W Club | County of Pottawattamie | 25 | 0 | 0 |
| Midwest Services Inc | County of Pottawattamie | 25 | 0 | 0 |
| Wilson Island Rec. Area-camp #3 Non-mode | County of Pottawattamie | 25 | 0 | 0 |
| Embers Ii | County of Pottawattamie | 25 | 0 | 0 |
| Murf's 66 Service Station | County of Pottawattamie | 25 | 0 | 0 |
| Dell Mobile Home Court | County of Pottawattamie | 25 | 0 | 0 |
| E & H I-80 Restaurant | County of Pottawattamie | 25 | 0 | 0 |