STATE REPORT NC 446 HEALTH VIOLATIONS

North Carolina Home Safety Profiles by ZIP

1085 ZIP codes · 766 water systems · IPC plumbing code · Updated

Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData, NWS, State plumbing boards, Rewiring America

ZipCheckup tracks drinking-water and home-safety data for 1,085 ZIP codes across North Carolina, covering 766 public water systems that serve about 8,383,186 people. 643 ZIP codes carry at least one EPA violation on record.

1085
ZIP Codes
766
Water Systems
643
ZIPs with Violations
IPC
Plumbing Code
4
Avg Rebate Programs
B · 78
Avg Safety Score
11
ZIPs Exceeding Lead Limit
7%
High Radon Risk (Zone 1)
#16
of 50 States
75%
ZIPs Rated A or B
87%
ZIPs with Violations
B
North Carolina average: 78/100 - ranked #16 of 50 states. 5 points above the national average (73). 75% of ZIP codes scored A or B.

North Carolina's water systems show strong safety indicators in aggregate - clean compliance histories dominate most of the state, with health-based exceedances confined to a narrow portion of monitored utilities.

Score Distribution

How North Carolina's 1085 ZIP codes are distributed across safety grades.

61
A
123
B
46
C
16
D
0
F
85-10070-8455-6940-540-39

Home Safety Scores by State

Loading map…
F (0-39) D (40-54) C (55-69) B (70-84) A (85+)

Model 4.0.0 inputs: EPA SDWIS, UCMR5 PFAS, EPA radon zones, annual county AQI •

Top 10 Safest ZIP Codes in North Carolina

Highest Home Safety Scores in the state.

#ZIP CodeCityCountyScoreGrade
1 27885 SwanquarterHyde 100 A
2 28449 Kure BeachNew Hanover 100 A
3 28144 SalisburyRowan 99 A
4 28159 SpencerRowan 99 A
5 28403 WilmingtonNew Hanover 99 A
6 28428 Carolina BeachNew Hanover 99 A
7 28480 Wrightsville BeachNew Hanover 99 A
8 27357 StokesdaleGuilford 98 A
9 28147 SalisburyRowan 98 A
10 28318 AutryvilleCumberland 98 A

10 Lowest-Scoring ZIP Codes in North Carolina

#ZIP CodeCityCountyScoreGradeViolations
1 28658 NewtonCatawba 50 D 55
2 28092 LincolntonLincoln 50 D 50
3 27610 RaleighWake 50 D 46
4 27606 RaleighWake 50 D 43
5 27603 RaleighWake 50 D 279
6 27587 Wake ForestWake 50 D 47
7 27545 KnightdaleWake 50 D 82
8 27539 ApexWake 50 D 131
9 27529 GarnerWake 50 D 80
10 27320 ReidsvilleRockingham 50 D 36

County Rankings

Water quality breakdown by county. 100 counties with data in North Carolina.

Loading county map…
F (0-39) D (40-54) C (55-69) B (70-84) A (85+)

County-level aggregation of measured ZIP Home Safety Scores • EPA SDWIS, UCMR 5 PFAS, EPA radon zones, EPA AirData

CountyAvg ScoreGradeZIPsBest ZIPWorst ZIP
37001 N/A N/A 13 N/A N/A
37003 81 B 2 28681 (81) 28636 (80)
37005 N/A N/A 5 N/A N/A
37007 N/A N/A 6 N/A N/A
37009 N/A N/A 11 N/A N/A
37011 N/A N/A 9 N/A N/A
37013 N/A N/A 11 N/A N/A
37015 N/A N/A 8 N/A N/A
37017 N/A N/A 9 N/A N/A
37019 N/A N/A 21 N/A N/A
37021 62 C 23 28704 (65) 28787 (51)
37023 N/A N/A 12 N/A N/A
37025 N/A N/A 9 N/A N/A
37027 77 B 6 28611 (83) 28630 (71)
37029 N/A N/A 3 N/A N/A
37031 92 A 23 28516 (98) 28338 (73)
37033 N/A N/A 8 N/A N/A
37035 68 C 9 28673 (82) 28658 (50)
37037 N/A N/A 9 N/A N/A
37039 N/A N/A 6 N/A N/A
37041 N/A N/A 2 N/A N/A
37043 N/A N/A 2 N/A N/A
37045 N/A N/A 14 N/A N/A
37047 N/A N/A 13 N/A N/A
37049 N/A N/A 10 N/A N/A
37051 83 B 21 28318 (98) 28306 (74)
37053 N/A N/A 14 N/A N/A
37055 N/A N/A 22 N/A N/A
37057 81 B 13 27107 (91) 27239 (66)
37059 N/A N/A 3 N/A N/A
37061 N/A N/A 11 N/A N/A
37063 77 B 17 27701 (83) 27703 (67)
37065 74 B 9 27809 (78) 27886 (70)
37067 80 B 35 27009 (83) 27284 (56)
37069 N/A N/A 4 N/A N/A
37071 N/A N/A 15 N/A N/A
37073 N/A N/A 5 N/A N/A
37075 N/A N/A 4 N/A N/A
37077 83 B 6 27509 (83) 27522 (82)
37079 N/A N/A 6 N/A N/A
37081 81 B 48 27357 (98) 27406 (68)
37083 N/A N/A 7 N/A N/A
37085 N/A N/A 13 N/A N/A
37087 79 B 7 28716 (83) 28786 (77)
37089 N/A N/A 18 N/A N/A
37091 N/A N/A 6 N/A N/A
37093 N/A N/A 2 N/A N/A
37095 100 A 5 27885 (100) 27885 (100)
37097 N/A N/A 15 N/A N/A
37099 N/A N/A 10 N/A N/A
37101 73 B 13 27504 (82) 27592 (67)
37103 N/A N/A 3 N/A N/A
37105 N/A N/A 7 N/A N/A
37107 82 B 5 28501 (82) 28525 (81)
37109 58 C 8 28168 (66) 28092 (50)
37111 N/A N/A 5 N/A N/A
37113 79 B 5 28734 (81) 28741 (77)
37115 N/A N/A 3 N/A N/A
37117 80 B 7 27892 (80) 27892 (80)
37119 89 A 83 28031 (92) 28215 (71)
37121 67 C 3 28777 (67) 28777 (67)
37123 68 C 8 28127 (77) 27371 (67)
37125 N/A N/A 14 N/A N/A
37127 N/A N/A 9 N/A N/A
37129 95 A 17 28449 (100) 28401 (80)
37131 87 A 13 27862 (95) 27832 (78)
37133 N/A N/A 13 N/A N/A
37135 N/A N/A 9 N/A N/A
37137 N/A N/A 11 N/A N/A
37139 N/A N/A 3 N/A N/A
37141 N/A N/A 13 N/A N/A
37143 N/A N/A 4 N/A N/A
37145 83 B 5 27573 (83) 27583 (83)
37147 78 B 16 27829 (90) 27834 (68)
37149 N/A N/A 6 N/A N/A
37151 N/A N/A 12 N/A N/A
37153 N/A N/A 6 N/A N/A
37155 N/A N/A 15 N/A N/A
37157 52 D 9 27288 (56) 27320 (50)
37159 91 A 15 28144 (99) 28023 (80)
37161 N/A N/A 11 N/A N/A
37163 N/A N/A 7 N/A N/A
37165 N/A N/A 5 N/A N/A
37167 N/A N/A 8 N/A N/A
37169 N/A N/A 8 N/A N/A
37171 N/A N/A 10 N/A N/A
37173 83 B 2 28713 (83) 28719 (83)
37175 N/A N/A 7 N/A N/A
37177 N/A N/A 1 N/A N/A
37179 78 B 7 28108 (83) 28079 (69)
37181 N/A N/A 6 N/A N/A
37183 63 C 54 27695 (83) 27610 (50)
37185 N/A N/A 8 N/A N/A
37187 N/A N/A 3 N/A N/A
37189 N/A N/A 9 N/A N/A
37191 N/A N/A 9 N/A N/A
37193 N/A N/A 13 N/A N/A
37195 N/A N/A 9 N/A N/A
37197 N/A N/A 5 N/A N/A
37199 N/A N/A 3 N/A N/A

Most Common Contaminants in North Carolina

Contaminant / RuleCategoryZIPs AffectedViolationsHealth Risk
Stage 1 DBP Rule Treatment Technique 400 976 Yes
Stage 2 DBP Rule Treatment Technique 369 1096 Yes
Total Trihalomethanes (TTHM) Disinfection Byproducts 339 891 Yes
Surface Water Treatment Rule Treatment Technique 337 1008 No
Haloacetic Acids (HAA5) Disinfection Byproducts 328 914 Yes
Consumer Confidence Report Rule Reporting 305 618 Yes
Lead and Copper Rule Treatment Technique 203 519 No
Revised Total Coliform Rule Microbiological 185 273 No

Overview

We track multi-source home safety signals for 1085 ZIP records across North Carolina. Home Safety Score model 4.0.0 is published for 246 scored records; missing required evidence suppresses the score.

The EPA snapshots used for this build directly map water systems to 738 ZIP records, covering 766 community water systems that serve approximately 8,383,186 people.

643 of 738 ZIP codes with a reported violation count in the available EPA record (87%) have recorded EPA violations. 446 health-based violations appear in the available health breakdown.

Plumbing Regulations

North Carolina follows the International Plumbing Code (2018 edition).

  • Plumbing code: IPC (2018)
  • Homeowner DIY: Allowed with permit
  • Water heater permit: Required
  • Annual backflow test: Required

Full North Carolina regulations →

Energy & Water Rebates

Across 1072 tracked ZIP codes in North Carolina, residents have access to an average of 4 water-related rebate programs - including incentives for heat pump water heaters, efficient fixtures, and plumbing upgrades.

Check rebates for your ZIP code →

Areas with Most Violations

ZIP Code City Home Safety Grade Violations Health-Based System
27603 Raleigh D 279 18 City of Raleigh,
27526 Fuquay Varina — 205 1 Fuquay-varina, Town of
27592 Willow Spring C 167 1 Johnston Company-west
28722 Columbus — 141 2 Columbus Town of
28782 Tryon — 140 2 Tryon, Town of
27539 Apex D 131 1 Holly Springs, Town of
27703 Durham C 102 1 City of Durham,
27019 Germanton — 98 0 City of Winston-salem,
27052 Walnut Cove — 98 0 Walnut Cove, Town of
27831 Garysburg — 95 4 Northampton--progressive

Areas with No Violations

ZIP Code City Home Safety Grade System Population
27233 Climax — Canterbury Trails 279
27343 Semora — City of Roxboro, 13,139
27506 Buies Creek — Harnett Regional Water 121,885
27509 Butner B South Granville Wtr&sewer Authority 18,555
27521 Coats — Harnett Regional Water 121,885
27531 Goldsboro — City of Goldsboro, 34,959
27541 Hurdle Mills — City of Roxboro, 13,139
27551 Macon — Warren County Water System 13,230
27553 Manson — Warren County Water System 13,230
27556 Middleburg — Warren County Water System 13,230

Home Safety Score

Average Home Safety Score for North Carolina: B (78/100) across 246 scored of 1085 tracked ZIP records.

Model 4.0.0 uses the canonical components water-compliance, pfas-mcl-screen, radon-zone, annual-aqi across 3 required domains. The sections below provide additional context and do not change that score. Missing required evidence suppresses the score, and a favorable result is not a property-level safety certification.

Lead & Copper

  • Average lead level (90th percentile): 0.0020 mg/L (EPA action level: 0.015 mg/L)
  • 11 of 738 ZIP codes with known status exceed the EPA lead action level

Radon Risk

  • High risk (Zone 1): 80 ZIP codes (7%)
  • Moderate risk (Zone 2): 321 ZIP codes
  • Low risk (Zone 3): 684 ZIP codes

ZIP Code Reports for North Carolina

Largest Communities

ZIP Code City Population Safety Grade Violations
28104 Matthews 1,337,287 B 23
28227 Charlotte 1,336,884 B 27
28105 Matthews 1,336,747 B 22
28270 Charlotte 1,336,683 A 1
28277 Charlotte 1,336,683 B 1
28078 Huntersville 1,285,032 A 0
28269 Charlotte 1,284,249 A 0
27560 Morrisville 1,211,755 D 40
28215 Charlotte 1,187,949 B 8
28213 Charlotte 1,184,666 A 2
28134 Pineville 1,167,610 B 2
28226 Charlotte 1,166,998 A 0
28273 Charlotte 1,166,998 A 0
28036 Davidson 1,166,803 A 2
28217 Charlotte 1,165,827 A 4
28210 Charlotte 1,165,631 A 3
28214 Charlotte 1,165,239 A 2
28278 Charlotte 1,164,174 A 3
28031 Cornelius 1,164,051 A 0
28216 Charlotte 1,163,831 A 2

Lowest Published Home Safety Scores

ZIP Code City Score Grade Violations
27048 Stoneville 50 D 32
27320 Reidsville 50 D 36
27529 Garner 50 D 80
27539 Apex 50 D 131
27545 Knightdale 50 D 82

Highest Published Home Safety Scores

ZIP Code City Score Grade Violations
27885 Swanquarter 100 A 0
28449 Kure Beach 100 A 0
28144 Salisbury 99 A 1
28159 Spencer 99 A 1
28403 Wilmington 99 A 3

All 1085 ZIP Codes in North Carolina

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Largest water systems in North Carolina

The 12 biggest community water systems serving North Carolina, of 766 total.

Show all 12 water systems

Systems with the most violations in North Carolina

12 systems in North Carolina with the most recorded EPA violations.

Frequently Asked Questions

Is the water safe to drink in North Carolina?

North Carolina has 766 community water systems serving 8,383,186 people across 1085 ZIP codes. There are 3,501 recorded violations, including 446 health-based. 643 of 1085 ZIP codes have at least one violation.

What plumbing code does North Carolina follow?

North Carolina follows the IPC plumbing code. DIY plumbing work is allowed for homeowners.

Is lead a concern in North Carolina's drinking water?

11 ZIP codes in North Carolina have lead levels exceeding the EPA action level of 0.015 mg/L.

What is the radon risk in North Carolina?

7% of ZIP codes in North Carolina fall in EPA Radon Zone 1 (highest risk).

How to cite this page

APA ZipCheckup. (2026). North Carolina Home Safety Profiles by ZIP. https://zipcheckup.com/states/north-carolina/
BibTeX 
@misc{zipcheckup-states-north-carolina,
  author = {{ZipCheckup}},
  title  = {{North Carolina Home Safety Profiles by ZIP}},
  year   = {2026},
  url    = {https://zipcheckup.com/states/north-carolina/}
}

Page version: August 2026.

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