South Carolina — 7th District
119th Congress · 71 ZIP codes · Avg score 80/100 · Grade B · Updated 2026-07-17
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-17
ZipCheckup tracks water safety for 71 ZIP codes in South Carolina's 7th District: the district earns a grade B (80/100). 64 EPA violations on record, 22 health-based.
Top Contaminants
ZIP Codes in This District
71 ZIP codes tracked in South Carolina's 7th District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 29503 | Florence | 99 | A | 0 |
| 2 | 29525 | Clio | 99 | A | 0 |
| 3 | 29551 | Hartsville | 99 | A | 1 |
| 4 | 29709 | Chesterfield | 99 | A | 0 |
| 5 | 29718 | Jefferson | 99 | A | 0 |
| 6 | 29069 | Lamar | 95 | A | 1 |
| 7 | 29114 | Olanta | 95 | A | 0 |
| 8 | 29502 | Florence | 95 | A | 0 |
| 9 | 29504 | Florence | 95 | A | 0 |
| 10 | 29583 | Pamplico | 95 | A | 0 |
| 11 | 29596 | Wallace | 95 | A | 0 |
| 12 | 29540 | Darlington | 94 | A | 3 |
| 13 | 29728 | Pageland | 93 | A | 2 |
| 14 | 29528 | Conway | 91 | A | 4 (4 health) |
| 15 | 29512 | Bennettsville | 90 | A | 0 |
| 16 | 29530 | Coward | 90 | A | 0 |
| 17 | 29536 | Dillon | 90 | A | 0 |
| 18 | 29550 | Hartsville | 90 | A | 1 |
| 19 | 29565 | Latta | 90 | A | 0 |
| 20 | 29578 | Myrtle Beach | 90 | A | 1 |
| 21 | 29587 | Myrtle Beach | 90 | A | 1 |
| 22 | 29591 | Scranton | 90 | A | 0 |
| 23 | 29532 | Darlington | 89 | A | 3 |
| 24 | 29597 | North Myrtle Beach | 88 | A | 2 |
| 25 | 29555 | Johnsonville | 87 | A | 2 |
| 26 | 29501 | Florence | 85 | A | 0 |
| 27 | 29505 | Florence | 85 | A | 0 |
| 28 | 29506 | Florence | 85 | A | 0 |
| 29 | 29571 | Marion | 85 | A | 0 |
| 30 | 29581 | Nichols | 85 | A | 0 |
| 31 | 29569 | Loris | 83 | B | 1 |
| 32 | 29598 | North Myrtle Beach | 83 | B | 2 |
| 33 | 29442 | Georgetown | 82 | B | 1 |
| 34 | 29510 | Andrews | 80 | B | 6 |
| 35 | 29572 | Myrtle Beach | 80 | B | 1 |
| 36 | 29574 | Mullins | 80 | B | 0 |
| 37 | 29575 | Myrtle Beach | 80 | B | 1 |
| 38 | 29579 | Myrtle Beach | 80 | B | 1 |
| 39 | 29588 | Myrtle Beach | 80 | B | 1 |
| 40 | 29527 | Conway | 76 | B | 4 (4 health) |
| 41 | 29577 | Myrtle Beach | 75 | B | 1 |
| 42 | 29161 | Timmonsville | 73 | B | 0 |
| 43 | 29511 | Aynor | 73 | B | 0 |
| 44 | 29516 | Blenheim | 73 | B | 0 |
| 45 | 29543 | Fork | 73 | B | 0 |
| 46 | 29545 | Green Sea | 73 | B | 0 |
| 47 | 29547 | Hamer | 73 | B | 0 |
| 48 | 29567 | Little Rock | 73 | B | 0 |
| 49 | 29570 | Mc Coll | 73 | B | 0 |
| 50 | 29582 | North Myrtle Beach | 73 | B | 2 |
Overview
South Carolina's 7th District encompasses 71 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is B (80/100).
64 EPA violations have been recorded across this district's water systems. 22 are health-based violations. About 37% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Haloacetic Acids (HAA5) - 30 violations
- Surface Water Treatment Rule - 22 violations
- Stage 1 DBP Rule - 6 violations
- Total Trihalomethanes (TTHM) - 4 violations
- Consumer Confidence Report Rule - 1 violation
Housing Context
Homes in this district were built on average around 1986 (~40 years old). Most homes were built after lead pipe regulations were tightened.
Data Sources
- Water quality violations: EPA Safe Drinking Water Information System (SDWIS)
- Congressional district boundaries: U.S. Census Bureau, 119th Congress
- Housing age: U.S. Census Bureau American Community Survey
Updated daily. Data covers 71 ZIP codes in South Carolina's 7th District.