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Horry County, South Carolina — public water systems

At a glance

52 active public water systems are filed under Horry County, South Carolina in EPA's SDWIS records, together reporting 424,485 people served. The largest is Gsw&Sa (Sc2620004), which reports serving 252,840 people. 10 are community water systems serving people where they live; the other 42 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

52

Population served

424.5K

Community systems

10

Groundwater share

17.3%

How does Horry County compare with other South Carolina counties?

Horry County has the 9th-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 424,485 people served in total, the 3rd-largest county figure in the state and 8.7% of the statewide total. The average system here reports serving 8,163 people, about 133% above 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 Horry County's drinking water come from?

By primary water source, Horry County's active systems draw on purchased surface water (41, 79%), groundwater (7, 13%), surface water (2, 3.8%) and purchased groundwater (2, 3.8%). Overall, 17% rely mainly on groundwater (including purchased groundwater) and 83% on surface water, compared with 70% and 30% across South Carolina. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. The county's largest system, Gsw&Sa (Sc2620004), draws primarily on surface water.

What kinds of water systems operate in Horry County?

Horry County's active systems break down as 10 community systems (19%), 1 non-transient non-community systems (1.9%) and 41 transient non-community systems (79%). 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 (87%) and local government (13%).

The 50 largest water systems in Horry County

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Active public water systems in Horry County, South Carolina
#Water systemCountyPopulation servedTypeSource
1Gsw&Sa (Sc2620004)Horry252,840CommunitySurface water
2Myrtle Beach City of (Sc2610001)Horry49,375CommunityPurchased surface water
3N Myrtle Beach City of (Sc2610011)Horry43,883CommunityPurchased surface water
4Conway City of (Sc2610008)Horry27,005CommunityPurchased surface water
5Bucksport Water Company (Sc2620003)Horry17,123CommunityGroundwater
6Conway Rural (Sc2620001)Horry12,740CommunityPurchased surface water
7Ocean Lakes Ltd (Sc2660048)Horry10,727CommunityPurchased surface water
8Lakewood Campground (Sc2660049)Horry4,415CommunityGroundwater
9Loris City of (Sc2610010)Horry4,350CommunityPurchased surface water
10Ocean Lakes Dispensing Sta 2 (Sc2680157)Horry150Transient non-communityPurchased groundwater
11Ocean Lakes Dispen Station 1 (2673002)Horry150Transient non-communityPurchased groundwater
12Pee Dee Farms Store (Sc2670916)Horry75Transient non-communityGroundwater
13Primo-Walmart 2887 (Sc2680199)Horry50Transient non-communityPurchased surface water
14Primo-Publix 1479 (2680202)Horry50Transient non-communityPurchased surface water
15Primo-Walmart 2870 (Sc2680206)Horry50Transient non-communityPurchased surface water
16Primo-Walmart 5367 (Sc2680207)Horry50Transient non-communityPurchased surface water
17Primo-Publix 1568 (Sc2680208)Horry50Transient non-communityPurchased surface water
18Primo-Walmart 5923 (Sc2680204)Horry50Transient non-communityPurchased surface water
19Primo-Kroger 026 (Sc2680164)Horry50Transient non-communityPurchased surface water
20Primo-Food Lion 2808 (Sc2680192)Horry50Transient non-communityPurchased surface water
21Primo-Food Lion 2240 (Sc2680193)Horry50Transient non-communityPurchased surface water
22Primo-Lowes Foods (Sc2680200)Horry50Transient non-communityPurchased surface water
23Primo-Food Lion 1556 (2680185)Horry50Transient non-communityPurchased surface water
24Primo-Food Lion 2248Horry50Transient non-communityPurchased surface water
25Primo-Publix 1806 (Sc2680212)Horry50Transient non-communityPurchased surface water
26Primo-Publix 1812 (Sc2680211)Horry50Transient non-communityPurchased surface water
27Primo-Food Lion 2249 (Sc2680210)Horry50Transient non-communityPurchased surface water
28Primo-Kroger 025 (Sc2680187)Horry50Transient non-communityPurchased surface water
29Primo-Publix 1510 (2680203)Horry50Transient non-communityPurchased surface water
30The Water Store (Sc2680181)Horry50Transient non-communityPurchased surface water
31Primo-Lowes Foods S Myrtle Beach 2680201Horry50Transient non-communityPurchased surface water
32Primo-Publix 1524 (Sc2680205)Horry50Transient non-communityPurchased surface water
33Primo-Lowes Food 233 (Sc2680188)Horry50Transient non-communityPurchased surface water
34Primo-Food Lion 0912 (Sc2680183)Horry50Transient non-communityPurchased surface water
35Primo-Kroger 020 (Sc2680194)Horry50Transient non-communityPurchased surface water
36B&B Midland Market (2670925)Horry50Transient non-communityGroundwater
37Hardee By Evh (Sc2630008)Horry45Non-transient non-communityGroundwater
38Budget Inn (Sc2670407)Horry45Transient non-communityGroundwater
39Primo-Kroger 016 (Sc2680163)Horry26Transient non-communityPurchased surface water
40Primo-Food Lion 0427 (2680176)Horry26Transient non-communityPurchased surface water
41Primo-Food Lion 0289 (2680174)Horry26Transient non-communityPurchased surface water
42Primo-Food Lion 1468 (2680172)Horry26Transient non-communityPurchased surface water
43Primo-Food Lion 1605 (2680171)Horry26Transient non-communityPurchased surface water
44Primo-Food Lion 0281 (Sc2680168)Horry26Transient non-communityPurchased surface water
45Primo-Food Lion 0916 (2680178)Horry26Transient non-communityPurchased surface water
46Primo-Food Lion 1599 (2680177)Horry26Transient non-communityPurchased surface water
47Primo-Food Lion 1384 (2680180)Horry26Transient non-communityPurchased surface water
48Primo-Walmart 0574 (Sc2680160)Horry26Transient non-communityPurchased surface water
49Primo-Food Lion 1047 (2680169)Horry26Transient non-communityPurchased surface water
50Primo-Food Lion 1595 (Sc2680179)Horry26Transient non-communityPurchased surface water

All other water systems in Horry County (2)

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

Horry County water systems: frequently asked questions

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

EPA's SDWIS records file 52 active public water systems under Horry County, South Carolina: 10 community systems (19%), 1 non-transient non-community systems (1.9%) and 41 transient non-community systems (79%).

Who supplies drinking water in Horry County, SC?

The largest community water systems filed under Horry County are Gsw&Sa (Sc2620004) (252,840 people served), Myrtle Beach City of (Sc2610001) (49,375 people served) and N Myrtle Beach City of (Sc2610011) (43,883 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 Horry County's drinking water come from groundwater or surface water?

Of the 52 active public water systems in Horry County, 17% draw mainly on groundwater and 83% on surface water, counting purchased supplies. The largest system, Gsw&Sa (Sc2620004), uses surface water.

Where can I find a water quality report for Horry 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. 10 community systems are filed under Horry 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 Horry 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 Horry County, South Carolina”, https://aquacensus.com/water-systems/south-carolina/horry (data as of October 1, 2026).