Harnett County, North Carolina
13 ZIP codes · Avg score 77/100 · Grade B · Updated 2026-06-04
Spanning 13 ZIP codes, Harnett County posts strong drinking water compliance — most systems have never triggered a health-based notice.
How Harnett County Compares
How Harnett County Compares
Harnett County scores 4 points above the North Carolina state average (73/100) and 9 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Harnett County, North Carolina
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.2 (asthma 11%, diabetes 11.8%)
Estimated additional annual cost per homeowner: $1,131, driven primarily by flood
Infrastructure: 0.277% avg pipe failure probability
35.6% of homes built before 1978 (lead paint era)
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,131
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
72,861 housing units in Harnett County
Source: U.S. Census Bureau ACS B25034 (Year Structure Built).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Harnett County
Remediation costs are relatively manageable for most homeowners in Harnett County, representing a small fraction of property value.
Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.
Health Outcomes vs National Average
CDC PLACES data for Harnett County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 5 systems in Harnett County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Harnett Regional Water | 116,892 | 20 |
| 2 | Angier, Town of | 10,317 | 11 |
| 3 | West Oaks S/d | 605 | 8 |
| 4 | Saddle Run S/d | 589 | 8 |
| 5 | Holly Springs, Town of | 51,947 | 8 |
30 total water systems serve Harnett County.
All ZIP Codes in Harnett County
13 ZIP codes tracked in Harnett County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 27526 | Fuquay Varina | 89 | A | 8 (1 health) | $372K |
| 2 | 27521 | Coats | 88 | A | 0 | $202K |
| 3 | 27501 | Angier | 86 | A | 3 (1 health) | $251K |
| 4 | 28335 | Dunn | 85 | A | 1 | — |
| 5 | 28339 | Erwin | 82 | B | 0 | $158K |
| 6 | 27546 | Lillington | 80 | B | 2 (1 health) | $227K |
| 7 | 28390 | Spring Lake | 77 | B | 6 | $195K |
| 8 | 28334 | Dunn | 75 | B | 1 | $171K |
| 9 | 27506 | Buies Creek | 73 | B | 0 | — |
| 10 | 28323 | Bunnlevel | 73 | B | 0 | $212K |
| 11 | 27543 | Kipling | 66 | C | 0 | — |
| 12 | 27552 | Mamers | 66 | C | 0 | — |
| 13 | 27592 | Willow Spring | 66 | C | 0 | $335K |
Recommended Buyer Guides for Harnett County
Where county records show a lead exceedance or pre-1978 housing concentration, lead-specific filters and test kits move toward the top of the list.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Deep Dive Reports
Detailed analysis for Harnett County, North Carolina
Overview
Harnett County in North Carolina covers 13 ZIP codes with an average Home Safety Score of B (77/100).
6 of 13 ZIP codes have recorded EPA violations. 3 health-based violations have been documented.
← Back to North Carolina water quality report
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Updated daily.