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Cumberland County, Pennsylvania — public water systems

At a glance

94 active public water systems are filed under Cumberland County, Pennsylvania in EPA's SDWIS records, together reporting 246,153 people served. The largest is Pa American Water Co West, which reports serving 105,127 people. 27 are community water systems serving people where they live; the other 67 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

94

Population served

246.2K

Community systems

27

Groundwater share

92.6%

How does Cumberland County compare with other Pennsylvania counties?

Cumberland County has the 27th-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 246,153 people served in total, the 16th-largest county figure in the state and 2% of the statewide total. The average system here reports serving 2,619 people, about 50% above 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 Cumberland County's drinking water come from?

By primary water source, Cumberland County's active systems draw on groundwater (85, 90%), surface water (6, 6.4%), groundwater under influence of surface water (1, 1.1%) and purchased surface water (1, 1.1%). Overall, 93% rely mainly on groundwater (including purchased groundwater) and 7.4% 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 West, draws primarily on surface water.

What kinds of water systems operate in Cumberland County?

Cumberland County's active systems break down as 27 community systems (29%), 20 non-transient non-community systems (21%) and 47 transient non-community systems (50%). 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 (62%), public/private partnership (17%), local government (15%) and state government (5.3%).

The 50 largest water systems in Cumberland County

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Active public water systems in Cumberland County, Pennsylvania
#Water systemCountyPopulation servedTypeSource
1Pa American Water Co WestCumberland105,127CommunitySurface water
2Veolia MechanicsburgCumberland45,013CommunitySurface water
3Carlisle Water Trmt PltCumberland26,000CommunitySurface water
4Shippensburg Boro Water AuthCumberland17,800CommunitySurface water
5South Middleton Twp Water AuthCumberland11,695CommunityPurchased surface water
6N Middleton Water AuthCumberland8,455CommunitySurface water
7Middlesex Twp Muni AuthCumberland3,527CommunityGroundwater
8State Correctional InstCumberland3,500CommunitySurface water
9Mt Holly Springs Boro AuthCumberland3,261CommunityGroundwater
10Newville Boro Water AuthCumberland2,070CommunityGroundwater under influence of surface water
11Us Army GarrisonCumberland1,700CommunityGroundwater
12Pine Grove Furnace State ParkCumberland900Transient non-communityGroundwater
13Mountain Creek CpgrdCumberland800Transient non-communityGroundwater
14Aqua Pa White Rock Acres SysCumberland790CommunityGroundwater
15B B Grocery Outlet NewburgCumberland675Non-transient non-communityGroundwater
16Visaggios RistoranteCumberland650Transient non-communityGroundwater
17Crestview Elem SchCumberland537Non-transient non-communityGroundwater
18Rutters 66Cumberland500Transient non-communityGroundwater
19Williams Grove SpeedwayCumberland500Transient non-communityGroundwater
20Regency Woods MHPCumberland450CommunityGroundwater
21Big Spring Terrace MHPCumberland439CommunityGroundwater
22Green Ridge Elem SchCumberland425Non-transient non-communityGroundwater
23Dogwood Acres Rec AreaCumberland400Transient non-communityGroundwater
24Southern Cumberland Water AssnCumberland400CommunityGroundwater
25Carlisle Church of LDSCumberland391Transient non-communityGroundwater
26Monroe Elementary SchoolCumberland350Non-transient non-communityGroundwater
27Country View EstCumberland330CommunityGroundwater
28Carlisle Swim ClubCumberland300Transient non-communityGroundwater
29Meeting House Church DillsburgCumberland300Transient non-communityGroundwater
30Col Denning St ParkCumberland300Transient non-communityGroundwater
31Rich Valley Golf CourseCumberland300Non-transient non-communityGroundwater
32Williams Grove MHPCumberland282CommunityGroundwater
33Southampton Twp Bldg & ParkCumberland270Transient non-communityGroundwater
34Conodoguinet Mobile EstCumberland265CommunityGroundwater
35North Dickinson Elem SchCumberland253Non-transient non-communityGroundwater
36Philip Bongiorno Conf CntrCumberland250Non-transient non-communityGroundwater
37Ashcombe Vegetable Farm & DeliCumberland250Non-transient non-communityGroundwater
38T J Rockwells American GrillCumberland250Non-transient non-communityGroundwater
39Lower Allen Comm ParkCumberland250Transient non-communityGroundwater
40Beistle CoCumberland250Non-transient non-communityGroundwater
41Plainfield MartCumberland250Transient non-communityGroundwater
42Dickinson Twp Munic AuthCumberland250CommunityPurchased groundwater
43Daybreak ChurchCumberland200Transient non-communityGroundwater
44Cherokee CampgoundCumberland200Transient non-communityGroundwater
45Eagles Crossing Golf ClubCumberland200Transient non-communityGroundwater
46Shippensburg Auction CenterCumberland200Transient non-communityGroundwater
47Kristys Whistle StopCumberland200Transient non-communityGroundwater
48Midway Bowling CenterCumberland200Transient non-communityGroundwater
49Mt View Terrace MHPCumberland179CommunityGroundwater
50Rolling Hills EstatesCumberland175CommunityGroundwater

All other water systems in Cumberland County (44)

The remaining active systems filed under Cumberland County, largest first, with the population each reports serving.

Cumberland County water systems: frequently asked questions

How many public water systems are in Cumberland County, Pennsylvania?

EPA's SDWIS records file 94 active public water systems under Cumberland County, Pennsylvania: 27 community systems (29%), 20 non-transient non-community systems (21%) and 47 transient non-community systems (50%).

Who supplies drinking water in Cumberland County, PA?

The largest community water systems filed under Cumberland County are Pa American Water Co West (105,127 people served), Veolia Mechanicsburg (45,013 people served) and Carlisle Water Trmt Plt (26,000 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 Cumberland County's drinking water come from groundwater or surface water?

Of the 94 active public water systems in Cumberland County, 93% draw mainly on groundwater and 7.4% on surface water, counting purchased supplies. The largest system, Pa American Water Co West, uses surface water.

Where can I find a water quality report for Cumberland 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. 27 community systems are filed under Cumberland 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 Cumberland 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 Cumberland County, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/cumberland (data as of October 1, 2026).