Jefferson County, Oklahoma — public water systems
At a glance
6 active public water systems are filed under Jefferson County, Oklahoma in EPA's SDWIS records, together reporting 12,925 people served. The largest is Jefferson Co Cons Rwd #1, which reports serving 8,398 people. All 6 are community water systems serving people where they live.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
6
Population served
12.9K
Community systems
6
Groundwater share
33.3%
How does Jefferson County compare with other Oklahoma counties?
Jefferson County has the 69th-most active public water systems among the 92 counties listed for active Oklahoma systems in EPA records; among the 78 with 3 or more systems, the median has 11. Its systems report 12,925 people served in total, the 46th-largest county figure in the state and 0.4% of the statewide total. The average system here reports serving 2,154 people, about 26% below the Oklahoma average of 2,907. 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 Jefferson County's drinking water come from?
By primary water source, Jefferson County's active systems draw on purchased surface water (3, 50%), surface water (1, 17%), groundwater (1, 17%) and purchased groundwater (1, 17%). Overall, 33% rely mainly on groundwater (including purchased groundwater) and 67% on surface water, compared with 62% and 38% across Oklahoma. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. The county's largest system, Jefferson Co Cons Rwd #1, draws primarily on purchased surface water.
What kinds of water systems operate in Jefferson County?
Jefferson County's active systems break down as 6 community systems (100%). 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. EPA lists their owner types as local government (100%).
Water systems in Jefferson County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Jefferson Co Cons Rwd #1 | Jefferson | 8,398 | Community | Purchased surface water |
| 2 | Waurika Public Works Authority | Jefferson | 2,100 | Community | Surface water |
| 3 | Ringling | Jefferson | 1,200 | Community | Groundwater |
| 4 | Ryan Utilities Authority | Jefferson | 800 | Community | Purchased surface water |
| 5 | Terral | Jefferson | 386 | Community | Purchased surface water |
| 6 | Cornish | Jefferson | 41 | Community | Purchased groundwater |
Jefferson County water systems: frequently asked questions
How many public water systems are in Jefferson County, Oklahoma?
EPA's SDWIS records file 6 active public water systems under Jefferson County, Oklahoma: 6 community systems (100%).
Who supplies drinking water in Jefferson County, OK?
The largest community water systems filed under Jefferson County are Jefferson Co Cons Rwd #1 (8,398 people served), Waurika Public Works Authority (2,100 people served) and Ringling (1,200 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 Jefferson County's drinking water come from groundwater or surface water?
Of the 6 active public water systems in Jefferson County, 33% draw mainly on groundwater and 67% on surface water, counting purchased supplies. The largest system, Jefferson Co Cons Rwd #1, uses purchased surface water.
Where can I find a water quality report for Jefferson 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. 6 community systems are filed under Jefferson 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 Jefferson 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 Oklahoma water systems
- All Oklahoma public water systems· 1,254 active
- Roger Mills County· 7 systems
- Tillman County· 7 systems
- Ellis County· 7 systems
- Marshall County· 6 systems
- Latimer County· 6 systems
- Okfuskee County· 6 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 Jefferson County, Oklahoma”, https://aquacensus.com/water-systems/oklahoma/jefferson (data as of October 1, 2026).