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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

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Active public water systems in Warren County, Pennsylvania
#Water systemCountyPopulation servedTypeSource
1Pa American Water Co WarrenWarren14,650CommunityGroundwater
2Youngsville Mun WaterworksWarren1,957CommunityGroundwater
3North Warren Muni AuthorityWarren1,749CommunityGroundwater
4Sheffield Twp Municipal AuthWarren1,075CommunityGroundwater
5Southwest Warren Co Mun AuthWarren1,040CommunitySurface water
6Aqua Pa ClarendonWarren840CommunityGroundwater
7Eisenhower Elemen Middle HsWarren835Non-transient non-communityGroundwater
8Kwik Fill M381Warren800Transient non-communityGroundwater
9Warren State HospitalWarren721CommunityGroundwater
10Pine Grove Twp Water SystemWarren640CommunityGroundwater
11Ellwood National Forge CoWarren513Non-transient non-communityGroundwater
12Red Oak CampgroundWarren450Transient non-communityGroundwater
13Whispering Winds CampgroundWarren350Transient non-communityGroundwater
14Wesley WoodsWarren300Transient non-communityGroundwater
15Kwik Fill M 299Warren300Transient non-communityGroundwater
16Dairy QueenWarren300Transient non-communityGroundwater
17Pleasant Valley MHPWarren270CommunityGroundwater
18Hearts Content Recreation AreaWarren226Transient non-communityGroundwater
19West Sheffield Water AssnWarren225CommunityGroundwater
20Wilderness MHPWarren200CommunityGroundwater
21Docksiders CafeWarren200Transient non-communityGroundwater
22The BucketWarren150Transient non-communityGroundwater
23Amvets Post 50Warren150Transient non-communityGroundwater
24Wendys CafeWarren150Transient non-communityGroundwater
25New Beginnings Family RestauraWarren150Transient non-communityGroundwater
26Masons Mobile CityWarren140CommunityGroundwater
27Buckaloons System #1Warren120Transient non-communityGroundwater
28Us Forest Service-Kinzua BeachWarren106Transient non-communityGroundwater
29Blueberry Hill Golf ClubWarren100Transient non-communityGroundwater
30Cable Hollow Golf CourseWarren100Transient non-communityGroundwater
31Sugar Grove Free Methodist ChWarren100Non-transient non-communityGroundwater
32Hemlock Lakes ParkWarren100Transient non-communityGroundwater
33Miracle Mountain RanchWarren98CommunityGroundwater
34Forester RestaurantWarren90Transient non-communityGroundwater
35Double DWarren85Transient non-communityGroundwater
36Kinzua Dam UsacoeWarren85Transient non-communityGroundwater
37Wcsd Central Office and LecWarren80Non-transient non-communityGroundwater
38Chapman State ParkWarren80Transient non-communityGroundwater
39Jackson Valley Golf ClubWarren75Transient non-communityGroundwater
40Frosty JacksWarren60Transient non-communityGroundwater
41Brokenstraw Valley Camp SitesWarren60Transient non-communityGroundwater
42Conewango Valley Country ClubWarren60Transient non-communityGroundwater
43Sheffield Veterans ClubWarren60Transient non-communityGroundwater
44Valley View Village MHPWarren55CommunityGroundwater
45Us Forest Service-Dew DropcampWarren50Transient non-communityGroundwater
46Warren County Christian SchoolWarren50Non-transient non-communityGroundwater
47Ribs N BonesWarren50Transient non-communityGroundwater
48Bear Lake InnWarren50Transient non-communityGroundwater
49Camp Olmsted BsaWarren50Transient non-communityGroundwater
50Legends RestaurantWarren45Transient non-communityGroundwater

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

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).