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York County, South Carolina — public water systems

At a glance

135 active public water systems are filed under York County, South Carolina in EPA's SDWIS records, together reporting 212,290 people served. The largest is Rock Hill City of (Sc4610002), which reports serving 89,850 people. 66 are community water systems serving people where they live; the other 69 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

135

Population served

212.3K

Community systems

66

Groundwater share

78.5%

How does York County compare with other South Carolina counties?

York County has the most active public water systems among the 58 counties listed for active South Carolina systems in EPA records; among the 46 with 3 or more systems, the median has 18. Its systems report 212,290 people served in total, the 7th-largest county figure in the state and 4.3% of the statewide total. The average system here reports serving 1,573 people, about 55% below the South Carolina average of 3,511. 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 York County's drinking water come from?

By primary water source, York County's active systems draw on groundwater (106, 79%), purchased surface water (28, 21%) and surface water (1, 0.7%). Overall, 79% rely mainly on groundwater (including purchased groundwater) and 21% on surface water, compared with 70% and 30% across South Carolina. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Rock Hill City of (Sc4610002), draws primarily on surface water.

What kinds of water systems operate in York County?

York County's active systems break down as 66 community systems (49%), 5 non-transient non-community systems (3.7%) and 64 transient non-community systems (47%). 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 (89%), local government (7.4%), state government (3%) and federal government (0.7%).

The 50 largest water systems in York County

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Active public water systems in York County, South Carolina
#Water systemCountyPopulation servedTypeSource
1Rock Hill City of (Sc4610002)York89,850CommunitySurface water
2York County East Wd (Sc4620002)York30,225CommunityPurchased surface water
3Fort Mill Town of (Sc4610003)York25,000CommunityPurchased surface water
4York County West Wd (Sc4620003)York18,273CommunityPurchased surface water
5York City of (Sc4610001)York11,137CommunityPurchased surface water
6Tega Cay City of (Sc4610008)York10,500CommunityPurchased surface water
7Clover Town of (Sc4610006)York8,400CommunityPurchased surface water
8Riverview Rural Cws (Sc4620001)York2,200CommunityPurchased surface water
9Lake Wylie MHP (Sc4660081)York1,225CommunityGroundwater
10Hickory Grove Town of (Sc4610004)York654CommunityGroundwater
11Sharon Town of (Sc4610005)York573CommunityGroundwater
12Bgwc Foxwood (Sc4650008)York570CommunityPurchased surface water
13Twin Lakes Estates (Sc4660007)York550CommunityPurchased surface water
14Bgwc Wintercrest (Sc4650017)York503CommunityGroundwater
15Clover Sch Dist Bethany School (4670101)York450Non-transient non-communityGroundwater
16Catawba Indian Nation Cws (Sc4650063)York446CommunityPurchased surface water
17Bgwc Country Oaks (Sc4650020)York359CommunityPurchased surface water
18Adnah Hills MHP (Sc4660115)York340CommunityGroundwater
19Glen at Clover LLC the (Sc4660064)York300CommunityGroundwater
20Metrolina Employee Housing (Sc4640005)York300Transient non-communityGroundwater
21Cedar Valley MHP (Sc4660009)York290CommunityGroundwater
22Green Earth Pws (Sc4610009)York280CommunityPurchased surface water
23Shield of Faith (Sc4670957)York250Transient non-communityGroundwater
24Quail Meadows Park LLC (Sc4660063)York221CommunityGroundwater
25Bgwc Carowood (Sc4650035)York212CommunityGroundwater
26Bgwc Olympic Acres (Sc4650053)York209CommunityGroundwater
27Dollar General - Mcconnells (Sc4674012)York200Transient non-communityGroundwater
28Dollar General - Eastview (Sc4674011)York200Transient non-communityGroundwater
29Dollar General #13478 Catawba (4679020)York200Transient non-communityGroundwater
30Dollar General-Hwy 324 (Sc4674003)York200Transient non-communityGroundwater
31The Peach Tree (Sc4672009)York200Transient non-communityGroundwater
32Sanderson Property (Sc4672008)York200Transient non-communityGroundwater
33Bgwc Brown Borough (Sc4650061)York193CommunityGroundwater
34Bgwc Silver Lakes-Windwood (Sc4650034)York191CommunityGroundwater
35Bgwc Shandon (Sc4650009)York183CommunityGroundwater
36Bgwc Ridgewood (Sc4650031)York175CommunityGroundwater
37Bgwc Woodbridge (Sc4650028)York173CommunityGroundwater
38Chucks MHP (Sc4660077)York168CommunityGroundwater
39Camp Canaan (Sc4670806)York160Transient non-communityGroundwater
40Southtown Water Sports Park (Sc4674007)York160Transient non-communityGroundwater
41Bgwc Shiloh Quarters (Sc4660092)York157CommunityGroundwater
42Bgwc Kims Acres (Sc4650041)York152CommunityGroundwater
43Bgwc Pepperidge (Sc4660101)York142CommunityGroundwater
44Scprt-Kings Mtn Sp-Camp Cherokee 4670881York141Transient non-communityGroundwater
45Bgwc Mallard Lakes (Sc4650057)York137CommunityGroundwater
46Pine Grove Church Cdc (Sc4679015)York130Non-transient non-communityGroundwater
47Goods MHP (Sc4660098)York128CommunityGroundwater
48Willwood S/D (4650004)York122CommunityGroundwater
49Bgwc Hidden Lakes (Sc4650040)York121CommunityPurchased surface water
50Scprt-Kings Mt Crawford (Sc4670603)York120Transient non-communityGroundwater

All other water systems in York County (85)

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

York County water systems: frequently asked questions

How many public water systems are in York County, South Carolina?

EPA's SDWIS records file 135 active public water systems under York County, South Carolina: 66 community systems (49%), 5 non-transient non-community systems (3.7%) and 64 transient non-community systems (47%).

Who supplies drinking water in York County, SC?

The largest community water systems filed under York County are Rock Hill City of (Sc4610002) (89,850 people served), York County East Wd (Sc4620002) (30,225 people served) and Fort Mill Town of (Sc4610003) (25,000 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 York County's drinking water come from groundwater or surface water?

Of the 135 active public water systems in York County, 79% draw mainly on groundwater and 21% on surface water, counting purchased supplies. The largest system, Rock Hill City of (Sc4610002), uses surface water.

Where can I find a water quality report for York 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. 66 community systems are filed under York 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 York 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 South Carolina 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 York County, South Carolina”, https://aquacensus.com/water-systems/south-carolina/york (data as of October 1, 2026).