Carroll County, Virginia
12 ZIP codes · Avg score 62/100 · Grade C · Updated 2026-06-03
Across Carroll County's 12 ZIP codes, water safety results are uneven — a portion of systems carry active or recent violations, while others meet standards without issues.
How Carroll County Compares
How Carroll County Compares
Carroll County scores 4 points below the Virginia state average (66/100) and 6 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Carroll County, Virginia
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 11%, diabetes 15.4%)
Estimated additional annual cost per homeowner: $968, driven primarily by energy_code_gap
Infrastructure: 0.366% avg pipe failure probability, 25% of ZIPs at high risk
63.6% 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: $968
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
25,250 housing units in Carroll 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 Carroll County
Remediation costs are relatively manageable for most homeowners in Carroll 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 Carroll 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 Carroll County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | CARROLL REGIONAL WATER SYSTEM | 7,500 | 16 |
| 2 | Fancy Gap | 530 | 16 |
| 3 | Fries, Town of | 484 | 11 |
| 4 | City of Galax, | 6,837 | 11 |
| 5 | Hillsville, Town of | 2,884 | 8 |
14 total water systems serve Carroll County.
All ZIP Codes in Carroll County
12 ZIP codes tracked in Carroll County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 24330 | Fries | 82 | B | 3 | $117K |
| 2 | 24333 | Galax | 82 | B | 8 (1 health) | $135K |
| 3 | 24352 | Laurel Fork | 70 | B | 5 | $158K |
| 4 | 24312 | Austinville | 63 | C | 0 | $139K |
| 5 | 24325 | Dugspur | 63 | C | 0 | $140K |
| 6 | 24328 | Fancy Gap | 61 | C | 2 | $169K |
| 7 | 24343 | Hillsville | 55 | C | 6 | $140K |
| 8 | 24053 | Ararat | 53 | D | 0 | $159K |
| 9 | 24059 | Bent Mountain | 53 | D | 0 | $224K |
| 10 | 24317 | Cana | 53 | D | 0 | $107K |
| 11 | 24351 | Lambsburg | 53 | D | 0 | $117K |
| 12 | 24085 | Eagle Rock | 50 | D | 0 | $141K |
Recommended Buyer Guides for Carroll County
Editorial-only picks, screened against the EPA detections on file.
- Best Lead Paint Test Kits — 63.6% of homes built before 1978
Deep Dive Reports
Detailed analysis for Carroll County, Virginia
Overview
Carroll County in Virginia covers 12 ZIP codes with an average Home Safety Score of C (62/100).
5 of 12 ZIP codes have recorded EPA violations. 1 health-based violation have been documented.
← Back to Virginia 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.