Montgomery County, Oregon — public water systems
At a glance
6 active public water systems are filed under Montgomery County, Oregon in EPA's SDWIS records, together reporting 2,273 people served. The largest is Washington County Railroad, which reports serving 795 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
2.3K
Community systems
6
Groundwater share
100%
How does Montgomery County compare with other Oregon counties?
Montgomery County has the 36th-most active public water systems among the 57 counties listed for active Oregon systems in EPA records; among the 38 with 3 or more systems, the median has 41. Its systems report 2,273 people served in total, the 35th-largest county figure in the state and less than 0.1% of the statewide total. The average system here reports serving 379 people, well below the Oregon average of 1,587. 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 Montgomery County's drinking water come from?
By primary water source, Montgomery County's active systems draw on groundwater (6, 100%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 88% and 12% across Oregon. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Washington County Railroad, draws primarily on groundwater.
What kinds of water systems operate in Montgomery County?
Montgomery 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 private (100%).
Water systems in Montgomery County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Washington County Railroad | Montgomery | 795 | Community | Groundwater |
| 2 | Shady Oaks Estates | Montgomery | 648 | Community | Groundwater |
| 3 | Highline Oaks Water Utility | Montgomery | 242 | Community | Groundwater |
| 4 | Montgomery Place Water System | Montgomery | 207 | Community | Groundwater |
| 5 | Everett Square Windcrest Estates | Montgomery | 204 | Community | Groundwater |
| 6 | Rose Hill Estates Subdivision | Montgomery | 177 | Community | Groundwater |
Montgomery County water systems: frequently asked questions
How many public water systems are in Montgomery County, Oregon?
EPA's SDWIS records file 6 active public water systems under Montgomery County, Oregon: 6 community systems (100%).
Who supplies drinking water in Montgomery County, OR?
The largest community water systems filed under Montgomery County are Washington County Railroad (795 people served), Shady Oaks Estates (648 people served) and Highline Oaks Water Utility (242 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 Montgomery County's drinking water come from groundwater or surface water?
Of the 6 active public water systems in Montgomery County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Washington County Railroad, uses groundwater.
Where can I find a water quality report for Montgomery 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 Montgomery 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 Montgomery 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 Oregon 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 Montgomery County, Oregon”, https://aquacensus.com/water-systems/oregon/montgomery (data as of October 1, 2026).