Alleghany County, North Carolina
8 ZIP codes · Avg score 49/100 · Grade D · Updated 2026-06-04
Alleghany County ranks below average for water safety, with health-based violations recorded across multiple of its 8 ZIP codes.
How Alleghany County Compares
How Alleghany County Compares
Alleghany County scores 24 points below the North Carolina state average (73/100) and 19 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Alleghany 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: 15.9 (asthma 10.8%, diabetes 15.2%)
Estimated additional annual cost per homeowner: $600, driven primarily by energy_code_gap
Infrastructure: 0.354% avg pipe failure probability, 13% of ZIPs at high risk
55.1% 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: $600
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
9,706 housing units in Alleghany 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 Alleghany County
Remediation costs are relatively manageable for most homeowners in Alleghany 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 Alleghany 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 Alleghany County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | SPARTA, TOWN OF | 1,900 | 2 |
| 2 | HIGH MEADOWS S/D | 650 | 1 |
| 3 | Roaring Gap Club Inc. | 493 | 1 |
| 4 | Olde Beau Golf Club | 475 | 1 |
| 5 | Blue Ridge Water Association | 8,486 | 0 |
All ZIP Codes in Alleghany County
8 ZIP codes tracked in Alleghany County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 28675 | Sparta | 69 | C | 2 | $202K |
| 2 | 28668 | Roaring Gap | 59 | C | 1 | — |
| 3 | 28644 | Laurel Springs | 53 | D | 0 | $252K |
| 4 | 28663 | Piney Creek | 53 | D | 0 | $204K |
| 5 | 28623 | Ennice | 40 | D | 0 | $181K |
| 6 | 28627 | Glade Valley | 40 | D | 0 | $190K |
| 7 | 28683 | Thurmond | 40 | D | 0 | $155K |
| 8 | 28685 | Traphill | 40 | D | 0 | $134K |
Recommended Buyer Guides for Alleghany County
Retailer arrangements don't shape what appears here — the selection logic is independent, filtered against EPA detections and the federal hazard data on file for this county.
- Best Lead Paint Test Kits — 55.1% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Deep Dive Reports
Detailed analysis for Alleghany County, North Carolina
Overview
Alleghany County in North Carolina covers 8 ZIP codes with an average Home Safety Score of D (49/100).
2 of 8 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← 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.
What You Can Do
Alleghany County has a grade of D. Here are steps to protect your household.
Test your tap water
Order a certified lab test kit ($20-$50) to check for lead, bacteria, and other contaminants specific to your ZIP code.
Consider a certified water filter
NSF-certified filters can remove most common contaminants. Match the filter to your test results for best protection. Try our filter matcher
Contact your water utility
Request the latest Consumer Confidence Report (CCR) from your water provider. It details exactly what was found in your water supply.
Check for lead in your home
55.1% of homes in this county were built before 1978. Older plumbing and solder can leach lead into drinking water, especially in the morning.