North Carolina — 4th District
119th Congress · 40 ZIP codes · Avg score 75/100 · Grade B · Updated 2026-06-03
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-06-03
Top Contaminants
ZIP Codes in This District
40 ZIP codes tracked in North Carolina's 4th District.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 27522 | Creedmoor | 98 | A | 3 |
| 2 | 27582 | Stovall | 98 | A | 3 (1 health) |
| 3 | 27243 | Efland | 95 | A | 0 |
| 4 | 27509 | Butner | 95 | A | 1 |
| 5 | 27564 | Creedmoor | 94 | A | 3 |
| 6 | 27278 | Hillsborough | 81 | B | 13 (1 health) |
| 7 | 27706 | Durham | 80 | B | 27 |
| 8 | 27715 | Durham | 80 | B | 27 |
| 9 | 27702 | Durham | 79 | B | 27 |
| 10 | 27708 | Durham | 79 | B | 27 |
| 11 | 27709 | Durham | 79 | B | 27 |
| 12 | 27710 | Durham | 79 | B | 27 |
| 13 | 27711 | Durham | 79 | B | 27 |
| 14 | 27717 | Durham | 79 | B | 27 |
| 15 | 27722 | Durham | 79 | B | 27 |
| 16 | 27565 | Oxford | 77 | B | 8 |
| 17 | 27701 | Durham | 75 | B | 27 |
| 18 | 27703 | Durham | 75 | B | 27 |
| 19 | 27713 | Durham | 75 | B | 27 |
| 20 | 27231 | Cedar Grove | 73 | B | 0 |
| 21 | 27503 | Bahama | 73 | B | 0 |
| 22 | 27507 | Bullock | 73 | B | 0 |
| 23 | 27519 | Cary | 73 | B | 210 (7 health) |
| 24 | 27581 | Stem | 73 | B | 0 |
| 25 | 28681 | Taylorsville | 72 | B | 4 |
| 26 | 27512 | Cary | 71 | B | 210 (7 health) |
| 27 | 28603 | Hickory | 71 | B | 5 (1 health) |
| 28 | 27704 | Durham | 70 | B | 27 |
| 29 | 27705 | Durham | 70 | B | 27 |
| 30 | 27707 | Durham | 70 | B | 27 |
| 31 | 27712 | Durham | 70 | B | 27 |
| 32 | 27513 | Cary | 68 | C | 210 (7 health) |
| 33 | 28636 | Hiddenite | 68 | C | 2 |
| 34 | 27584 | Townsville | 66 | C | 0 |
| 35 | 28602 | Hickory | 66 | C | 5 (1 health) |
| 36 | 27511 | Cary | 63 | C | 210 (7 health) |
| 37 | 27518 | Cary | 63 | C | 210 (7 health) |
| 38 | 28678 | Stony Point | 63 | C | 0 |
| 39 | 28601 | Hickory | 61 | C | 5 (1 health) |
| 40 | 27560 | Morrisville | 55 | C | 0 |
Overview
North Carolina's 4th District serving an estimated 8,433,571 residents encompasses 40 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is B (75/100).
1534 EPA violations have been recorded across this district's water systems. 40 are health-based violations. About 80% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Surface Water Treatment Rule — 454 violations
- Stage 1 DBP Rule — 305 violations
- Consumer Confidence Report Rule — 167 violations
- Total Trihalomethanes (TTHM) — 151 violations
- Revised Total Coliform Rule — 95 violations
Housing Context
Homes in this district were built on average around 1985 (~41 years old). Older homes may have lead pipes or solder — consider a water filter if your home predates 1986.
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 40 ZIP codes in North Carolina's 4th District.