Warren County, Pennsylvania — public water systems
At a glance
61 active public water systems are filed under Warren County, Pennsylvania in EPA's SDWIS records, together reporting 30,533 people served. The largest is Pa American Water Co Warren, which reports serving 14,650 people. 15 are community water systems serving people where they live; the other 46 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
61
Population served
30.5K
Community systems
15
Groundwater share
98.4%
How does Warren County compare with other Pennsylvania counties?
Warren County has the 42nd-most active public water systems among the 99 counties listed for active Pennsylvania systems in EPA records; among the 71 with 3 or more systems, the median has 76. Its systems report 30,533 people served in total, the 52nd-largest county figure in the state and 0.2% of the statewide total. The average system here reports serving 501 people, well below the Pennsylvania average of 1,741. 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 Warren County's drinking water come from?
By primary water source, Warren County's active systems draw on groundwater (60, 98%) and surface water (1, 1.6%). Overall, 98% rely mainly on groundwater (including purchased groundwater) and 1.6% on surface water, compared with 93% and 6.8% across Pennsylvania. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Pa American Water Co Warren, draws primarily on groundwater.
What kinds of water systems operate in Warren County?
Warren County's active systems break down as 15 community systems (25%), 5 non-transient non-community systems (8.2%) and 41 transient non-community systems (67%). 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 (59%), public/private partnership (15%), federal government (15%) and local government (8.2%).
The 50 largest water systems in Warren County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Pa American Water Co Warren | Warren | 14,650 | Community | Groundwater |
| 2 | Youngsville Mun Waterworks | Warren | 1,957 | Community | Groundwater |
| 3 | North Warren Muni Authority | Warren | 1,749 | Community | Groundwater |
| 4 | Sheffield Twp Municipal Auth | Warren | 1,075 | Community | Groundwater |
| 5 | Southwest Warren Co Mun Auth | Warren | 1,040 | Community | Surface water |
| 6 | Aqua Pa Clarendon | Warren | 840 | Community | Groundwater |
| 7 | Eisenhower Elemen Middle Hs | Warren | 835 | Non-transient non-community | Groundwater |
| 8 | Kwik Fill M381 | Warren | 800 | Transient non-community | Groundwater |
| 9 | Warren State Hospital | Warren | 721 | Community | Groundwater |
| 10 | Pine Grove Twp Water System | Warren | 640 | Community | Groundwater |
| 11 | Ellwood National Forge Co | Warren | 513 | Non-transient non-community | Groundwater |
| 12 | Red Oak Campground | Warren | 450 | Transient non-community | Groundwater |
| 13 | Whispering Winds Campground | Warren | 350 | Transient non-community | Groundwater |
| 14 | Wesley Woods | Warren | 300 | Transient non-community | Groundwater |
| 15 | Kwik Fill M 299 | Warren | 300 | Transient non-community | Groundwater |
| 16 | Dairy Queen | Warren | 300 | Transient non-community | Groundwater |
| 17 | Pleasant Valley MHP | Warren | 270 | Community | Groundwater |
| 18 | Hearts Content Recreation Area | Warren | 226 | Transient non-community | Groundwater |
| 19 | West Sheffield Water Assn | Warren | 225 | Community | Groundwater |
| 20 | Wilderness MHP | Warren | 200 | Community | Groundwater |
| 21 | Docksiders Cafe | Warren | 200 | Transient non-community | Groundwater |
| 22 | The Bucket | Warren | 150 | Transient non-community | Groundwater |
| 23 | Amvets Post 50 | Warren | 150 | Transient non-community | Groundwater |
| 24 | Wendys Cafe | Warren | 150 | Transient non-community | Groundwater |
| 25 | New Beginnings Family Restaura | Warren | 150 | Transient non-community | Groundwater |
| 26 | Masons Mobile City | Warren | 140 | Community | Groundwater |
| 27 | Buckaloons System #1 | Warren | 120 | Transient non-community | Groundwater |
| 28 | Us Forest Service-Kinzua Beach | Warren | 106 | Transient non-community | Groundwater |
| 29 | Blueberry Hill Golf Club | Warren | 100 | Transient non-community | Groundwater |
| 30 | Cable Hollow Golf Course | Warren | 100 | Transient non-community | Groundwater |
| 31 | Sugar Grove Free Methodist Ch | Warren | 100 | Non-transient non-community | Groundwater |
| 32 | Hemlock Lakes Park | Warren | 100 | Transient non-community | Groundwater |
| 33 | Miracle Mountain Ranch | Warren | 98 | Community | Groundwater |
| 34 | Forester Restaurant | Warren | 90 | Transient non-community | Groundwater |
| 35 | Double D | Warren | 85 | Transient non-community | Groundwater |
| 36 | Kinzua Dam Usacoe | Warren | 85 | Transient non-community | Groundwater |
| 37 | Wcsd Central Office and Lec | Warren | 80 | Non-transient non-community | Groundwater |
| 38 | Chapman State Park | Warren | 80 | Transient non-community | Groundwater |
| 39 | Jackson Valley Golf Club | Warren | 75 | Transient non-community | Groundwater |
| 40 | Frosty Jacks | Warren | 60 | Transient non-community | Groundwater |
| 41 | Brokenstraw Valley Camp Sites | Warren | 60 | Transient non-community | Groundwater |
| 42 | Conewango Valley Country Club | Warren | 60 | Transient non-community | Groundwater |
| 43 | Sheffield Veterans Club | Warren | 60 | Transient non-community | Groundwater |
| 44 | Valley View Village MHP | Warren | 55 | Community | Groundwater |
| 45 | Us Forest Service-Dew Dropcamp | Warren | 50 | Transient non-community | Groundwater |
| 46 | Warren County Christian School | Warren | 50 | Non-transient non-community | Groundwater |
| 47 | Ribs N Bones | Warren | 50 | Transient non-community | Groundwater |
| 48 | Bear Lake Inn | Warren | 50 | Transient non-community | Groundwater |
| 49 | Camp Olmsted Bsa | Warren | 50 | Transient non-community | Groundwater |
| 50 | Legends Restaurant | Warren | 45 | Transient non-community | Groundwater |
All other water systems in Warren County (11)
The remaining active systems filed under Warren County, largest first, with the population each reports serving.
Warren County water systems: frequently asked questions
How many public water systems are in Warren County, Pennsylvania?
EPA's SDWIS records file 61 active public water systems under Warren County, Pennsylvania: 15 community systems (25%), 5 non-transient non-community systems (8.2%) and 41 transient non-community systems (67%).
Who supplies drinking water in Warren County, PA?
The largest community water systems filed under Warren County are Pa American Water Co Warren (14,650 people served), Youngsville Mun Waterworks (1,957 people served) and North Warren Muni Authority (1,749 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 Warren County's drinking water come from groundwater or surface water?
Of the 61 active public water systems in Warren County, 98% draw mainly on groundwater and 1.6% on surface water, counting purchased supplies. The largest system, Pa American Water Co Warren, uses groundwater.
Where can I find a water quality report for Warren 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. 15 community systems are filed under Warren 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 Warren 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 Pennsylvania water systems
- All Pennsylvania public water systems· 7,217 active
- Cambria County· 65 systems
- Allegheny County· 65 systems
- Venango County· 63 systems
- Northumberland County· 62 systems
- Lawrence County· 55 systems
- McKean 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 Warren County, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/warren (data as of October 1, 2026).