Greer County, Oklahoma — public water systems
At a glance
5 active public water systems are filed under Greer County, Oklahoma in EPA's SDWIS records, together reporting 3,482 people served. The largest is Mangum Pws, which reports serving 2,924 people. All 5 are community water systems serving people where they live.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
5
Population served
3.5K
Community systems
5
Groundwater share
100%
How does Greer County compare with other Oklahoma counties?
Greer County has the 74th-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 3,482 people served in total, the 71st-largest county figure in the state and less than 0.1% of the statewide total. The average system here reports serving 696 people, well 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 Greer County's drinking water come from?
By primary water source, Greer County's active systems draw on groundwater (3, 60%) and purchased groundwater (2, 40%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 62% and 38% across Oklahoma. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Mangum Pws, draws primarily on groundwater.
What kinds of water systems operate in Greer County?
Greer County's active systems break down as 5 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 Greer County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Mangum Pws | Greer | 2,924 | Community | Groundwater |
| 2 | Harmon Electric | Greer | 188 | Community | Purchased groundwater |
| 3 | Reed Water Corp | Greer | 175 | Community | Purchased groundwater |
| 4 | Willow | Greer | 114 | Community | Groundwater |
| 5 | Thirsty Water Corp | Greer | 81 | Community | Groundwater |
Greer County water systems: frequently asked questions
How many public water systems are in Greer County, Oklahoma?
EPA's SDWIS records file 5 active public water systems under Greer County, Oklahoma: 5 community systems (100%).
Who supplies drinking water in Greer County, OK?
The largest community water systems filed under Greer County are Mangum Pws (2,924 people served), Harmon Electric (188 people served) and Reed Water Corp (175 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 Greer County's drinking water come from groundwater or surface water?
Of the 5 active public water systems in Greer County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Mangum Pws, uses groundwater.
Where can I find a water quality report for Greer 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. 5 community systems are filed under Greer 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 Greer 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
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 Greer County, Oklahoma”, https://aquacensus.com/water-systems/oklahoma/greer (data as of October 1, 2026).