Franklin County, Missouri — public water systems
At a glance
81 active public water systems are filed under Franklin County, Missouri in EPA's SDWIS records, together reporting 70,978 people served. The largest is Washington Pws, which reports serving 14,068 people. 41 are community water systems serving people where they live; the other 40 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
81
Population served
71K
Community systems
41
Groundwater share
100%
How does Franklin County compare with other Missouri counties?
Franklin County has the 8th-most active public water systems among the 182 counties listed for active Missouri systems in EPA records; among the 132 with 3 or more systems, the median has 13. Its systems report 70,978 people served in total, the 15th-largest county figure in the state and 1.2% of the statewide total. The average system here reports serving 876 people, about 57% below the Missouri average of 2,049. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.
Where does Franklin County's drinking water come from?
By primary water source, Franklin County's active systems draw on groundwater (81, 100%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 92% and 8.1% across Missouri. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Washington Pws, draws primarily on groundwater.
What kinds of water systems operate in Franklin County?
Franklin County's active systems break down as 41 community systems (51%), 12 non-transient non-community systems (15%) and 28 transient non-community systems (35%). A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as private (64%), local government (28%) and state government (7.4%).
The 50 largest water systems in Franklin County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Washington Pws | Franklin | 14,068 | Community | Groundwater |
| 2 | Union Pws | Franklin | 12,348 | Community | Groundwater |
| 3 | Franklin County Pwsd 3 | Franklin | 8,250 | Community | Groundwater |
| 4 | Sullivan Pws | Franklin + 1 more | 7,081 | Community | Groundwater |
| 5 | Pacific Pws | Franklin + 1 more | 6,000 | Community | Groundwater |
| 6 | St Clair Pws | Franklin | 4,700 | Community | Groundwater |
| 7 | Franklin County Pwsd 1 | Franklin | 3,500 | Community | Groundwater |
| 8 | New Haven Pws | Franklin | 2,000 | Community | Groundwater |
| 9 | Gerald Pws | Franklin | 1,383 | Community | Groundwater |
| 10 | Franklin County Pwsd 3 St Albans | Franklin | 1,300 | Community | Groundwater |
| 11 | Franklin County Pwsd 4 | Franklin | 760 | Community | Groundwater |
| 12 | Franklin County Pwsd 3 Lake Serene | Franklin | 600 | Community | Groundwater |
| 13 | Oak Grove Village Pws | Franklin | 508 | Community | Groundwater |
| 14 | Wagners Store | Franklin | 500 | Transient non-community | Groundwater |
| 15 | Coleman Elementary School | Franklin | 485 | Non-transient non-community | Groundwater |
| 16 | Lonedell R Xiv Elementary School | Franklin | 385 | Non-transient non-community | Groundwater |
| 17 | Argyle Estates Water Supply | Franklin | 380 | Community | Groundwater |
| 18 | Franklin County Water Company Inc. | Franklin | 350 | Community | Groundwater |
| 19 | Nike Elementary School | Franklin | 300 | Non-transient non-community | Groundwater |
| 20 | Silver Oaks | Franklin | 300 | Transient non-community | Groundwater |
| 21 | Meramec Caverns | Franklin | 273 | Transient non-community | Groundwater |
| 22 | Berger Pws | Franklin | 256 | Community | Groundwater |
| 23 | Village Greens | Franklin | 250 | Community | Groundwater |
| 24 | Sylvan Manor Subd | Franklin | 240 | Community | Groundwater |
| 25 | Franklin County Pwsd 5 | Franklin | 230 | Community | Groundwater |
| 26 | Spring Bluff R Xv Elementary School | Franklin | 220 | Non-transient non-community | Groundwater |
| 27 | Camp Mo Val | Franklin | 200 | Transient non-community | Groundwater |
| 28 | Robertsville Elementary School | Franklin | 190 | Non-transient non-community | Groundwater |
| 29 | Miramiguoa Park | Franklin | 150 | Community | Groundwater |
| 30 | Franklin County R Ii Elementary School | Franklin | 150 | Non-transient non-community | Groundwater |
| 31 | Crestview Acres Subd | Franklin | 150 | Community | Groundwater |
| 32 | Evergreen Lake Estates | Franklin | 150 | Community | Groundwater |
| 33 | Cedar Vale MHP | Franklin | 142 | Community | Groundwater |
| 34 | Meramec State Park Campgrd | Franklin | 138 | Transient non-community | Groundwater |
| 35 | Spring Meadows MHP | Franklin | 135 | Community | Groundwater |
| 36 | Purina Animal Nutrition Center | Franklin | 125 | Non-transient non-community | Groundwater |
| 37 | Bourbeuse MHP | Franklin | 125 | Community | Groundwater |
| 38 | Sirenity Farms Campground | Franklin | 120 | Transient non-community | Groundwater |
| 39 | Tall Oaks MHP | Franklin | 120 | Community | Groundwater |
| 40 | Campbellton Elementary School | Franklin | 120 | Non-transient non-community | Groundwater |
| 41 | Franklin County Special School Dist | Franklin | 111 | Non-transient non-community | Groundwater |
| 42 | Woodland Hills Subd | Franklin | 110 | Community | Groundwater |
| 43 | Holtgrewe Farms Subdivision | Franklin | 110 | Community | Groundwater |
| 44 | Triple 3 Vineyard Winery and Event Cntr | Franklin | 100 | Transient non-community | Groundwater |
| 45 | Cedar Creek Conference Center | Franklin | 100 | Transient non-community | Groundwater |
| 46 | Forty Acre Club | Franklin | 100 | Non-transient non-community | Groundwater |
| 47 | Meramec State Park Dining Lodge | Franklin | 100 | Transient non-community | Groundwater |
| 48 | Paradise MHP | Franklin | 98 | Community | Groundwater |
| 49 | St Joseph Catholic Church of Neier | Franklin | 95 | Transient non-community | Groundwater |
| 50 | Bright Beginnings Day Care | Franklin | 80 | Non-transient non-community | Groundwater |
All other water systems in Franklin County (31)
The remaining active systems filed under Franklin County, largest first, with the population each reports serving.
- Strain Japan R 1680
- Hillshine Acres Subd80
- Circle C MHP75
- Horse Shoe Bend70
- Meramec State Park Hickory Ridge68
- Prospect Baptist Church Lonedell55
- Franklin County Pwsd 1 Cardinal Meadows52
- Mc Kelvey Vineyards50
- Wayside South50
- Robertsville State Park50
- Meramec Caverns Campground47
- Hayfield Water Works45
- Good Time Market40
- Avery Mobile Home Court40
- Calvey Brook Estates40
- Franklin Baptist Assn36
- Greenwood Valley36
- Vfw Post 248230
- K Kwik Korner30
- Foxboro Subdivision30
- Prairie Dell MHP30
- Hermit Hollow Subd30
- Town of Charmwood28
- Ultimate Rides25
- Nat Assoc Intercultural Fam Mission Inc.25
- Meramec State Park Visitor Center25
- Wolf Hollow Golf Club25
- Camp Trinity25
- West Winds Hills Event Center25
- Camp Woodland Hills25
- Meramec Caverns Motel25
Franklin County water systems: frequently asked questions
How many public water systems are in Franklin County, Missouri?
EPA's SDWIS records file 81 active public water systems under Franklin County, Missouri: 41 community systems (51%), 12 non-transient non-community systems (15%) and 28 transient non-community systems (35%).
Who supplies drinking water in Franklin County, MO?
The largest community water systems filed under Franklin County are Washington Pws (14,068 people served), Union Pws (12,348 people served) and Franklin County Pwsd 3 (8,250 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.
Does Franklin County's drinking water come from groundwater or surface water?
Of the 81 active public water systems in Franklin County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Washington Pws, uses groundwater.
Where can I find a water quality report for Franklin County?
Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 41 community systems are filed under Franklin County, so the report to look for is the one from the system that supplies your address.
How can I check violations for a water system in Franklin County?
Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.
More Missouri water systems
- All Missouri public water systems· 2,943 active
- Jefferson County· 92 systems
- Barry County· 88 systems
- Benton County· 83 systems
- Greene County· 81 systems
- Morgan County· 68 systems
- St. Charles County· 54 systems
- How to find out who supplies your drinking water
- How to find and read your annual water quality report
About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Public water systems in Franklin County, Missouri”, https://aquacensus.com/water-systems/missouri/franklin (data as of October 1, 2026).