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
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Gsw&Sa (Sc2620004) | Horry | 252,840 | Community | Surface water |
| 2 | Myrtle Beach City of (Sc2610001) | Horry | 49,375 | Community | Purchased surface water |
| 3 | N Myrtle Beach City of (Sc2610011) | Horry | 43,883 | Community | Purchased surface water |
| 4 | Conway City of (Sc2610008) | Horry | 27,005 | Community | Purchased surface water |
| 5 | Bucksport Water Company (Sc2620003) | Horry | 17,123 | Community | Groundwater |
| 6 | Conway Rural (Sc2620001) | Horry | 12,740 | Community | Purchased surface water |
| 7 | Ocean Lakes Ltd (Sc2660048) | Horry | 10,727 | Community | Purchased surface water |
| 8 | Lakewood Campground (Sc2660049) | Horry | 4,415 | Community | Groundwater |
| 9 | Loris City of (Sc2610010) | Horry | 4,350 | Community | Purchased surface water |
| 10 | Ocean Lakes Dispensing Sta 2 (Sc2680157) | Horry | 150 | Transient non-community | Purchased groundwater |
| 11 | Ocean Lakes Dispen Station 1 (2673002) | Horry | 150 | Transient non-community | Purchased groundwater |
| 12 | Pee Dee Farms Store (Sc2670916) | Horry | 75 | Transient non-community | Groundwater |
| 13 | Primo-Walmart 2887 (Sc2680199) | Horry | 50 | Transient non-community | Purchased surface water |
| 14 | Primo-Publix 1479 (2680202) | Horry | 50 | Transient non-community | Purchased surface water |
| 15 | Primo-Walmart 2870 (Sc2680206) | Horry | 50 | Transient non-community | Purchased surface water |
| 16 | Primo-Walmart 5367 (Sc2680207) | Horry | 50 | Transient non-community | Purchased surface water |
| 17 | Primo-Publix 1568 (Sc2680208) | Horry | 50 | Transient non-community | Purchased surface water |
| 18 | Primo-Walmart 5923 (Sc2680204) | Horry | 50 | Transient non-community | Purchased surface water |
| 19 | Primo-Kroger 026 (Sc2680164) | Horry | 50 | Transient non-community | Purchased surface water |
| 20 | Primo-Food Lion 2808 (Sc2680192) | Horry | 50 | Transient non-community | Purchased surface water |
| 21 | Primo-Food Lion 2240 (Sc2680193) | Horry | 50 | Transient non-community | Purchased surface water |
| 22 | Primo-Lowes Foods (Sc2680200) | Horry | 50 | Transient non-community | Purchased surface water |
| 23 | Primo-Food Lion 1556 (2680185) | Horry | 50 | Transient non-community | Purchased surface water |
| 24 | Primo-Food Lion 2248 | Horry | 50 | Transient non-community | Purchased surface water |
| 25 | Primo-Publix 1806 (Sc2680212) | Horry | 50 | Transient non-community | Purchased surface water |
| 26 | Primo-Publix 1812 (Sc2680211) | Horry | 50 | Transient non-community | Purchased surface water |
| 27 | Primo-Food Lion 2249 (Sc2680210) | Horry | 50 | Transient non-community | Purchased surface water |
| 28 | Primo-Kroger 025 (Sc2680187) | Horry | 50 | Transient non-community | Purchased surface water |
| 29 | Primo-Publix 1510 (2680203) | Horry | 50 | Transient non-community | Purchased surface water |
| 30 | The Water Store (Sc2680181) | Horry | 50 | Transient non-community | Purchased surface water |
| 31 | Primo-Lowes Foods S Myrtle Beach 2680201 | Horry | 50 | Transient non-community | Purchased surface water |
| 32 | Primo-Publix 1524 (Sc2680205) | Horry | 50 | Transient non-community | Purchased surface water |
| 33 | Primo-Lowes Food 233 (Sc2680188) | Horry | 50 | Transient non-community | Purchased surface water |
| 34 | Primo-Food Lion 0912 (Sc2680183) | Horry | 50 | Transient non-community | Purchased surface water |
| 35 | Primo-Kroger 020 (Sc2680194) | Horry | 50 | Transient non-community | Purchased surface water |
| 36 | B&B Midland Market (2670925) | Horry | 50 | Transient non-community | Groundwater |
| 37 | Hardee By Evh (Sc2630008) | Horry | 45 | Non-transient non-community | Groundwater |
| 38 | Budget Inn (Sc2670407) | Horry | 45 | Transient non-community | Groundwater |
| 39 | Primo-Kroger 016 (Sc2680163) | Horry | 26 | Transient non-community | Purchased surface water |
| 40 | Primo-Food Lion 0427 (2680176) | Horry | 26 | Transient non-community | Purchased surface water |
| 41 | Primo-Food Lion 0289 (2680174) | Horry | 26 | Transient non-community | Purchased surface water |
| 42 | Primo-Food Lion 1468 (2680172) | Horry | 26 | Transient non-community | Purchased surface water |
| 43 | Primo-Food Lion 1605 (2680171) | Horry | 26 | Transient non-community | Purchased surface water |
| 44 | Primo-Food Lion 0281 (Sc2680168) | Horry | 26 | Transient non-community | Purchased surface water |
| 45 | Primo-Food Lion 0916 (2680178) | Horry | 26 | Transient non-community | Purchased surface water |
| 46 | Primo-Food Lion 1599 (2680177) | Horry | 26 | Transient non-community | Purchased surface water |
| 47 | Primo-Food Lion 1384 (2680180) | Horry | 26 | Transient non-community | Purchased surface water |
| 48 | Primo-Walmart 0574 (Sc2680160) | Horry | 26 | Transient non-community | Purchased surface water |
| 49 | Primo-Food Lion 1047 (2680169) | Horry | 26 | Transient non-community | Purchased surface water |
| 50 | Primo-Food Lion 1595 (Sc2680179) | Horry | 26 | Transient non-community | Purchased 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
- All South Carolina public water systems· 1,392 active
- Aiken County· 65 systems
- Berkeley County· 61 systems
- Dorchester County· 55 systems
- Oconee County· 55 systems
- Pickens County· 46 systems
- Beaufort County· 45 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 Horry County, South Carolina”, https://aquacensus.com/water-systems/south-carolina/horry (data as of October 1, 2026).