Grant County, New Mexico
18 ZIP codes · Avg score 66/100 · Grade C · Updated 2026-06-04
Based on current EPA data, Grant County's 18 ZIP codes reflect fair but mixed water safety.
How Grant County Compares
How Grant County Compares
Grant County scores 4 points above the New Mexico state average (62/100) and 2 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Grant County, New Mexico
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14.3 (asthma 9.5%, diabetes 15.9%)
Estimated additional annual cost per homeowner: $1,854, driven primarily by wildfire
Infrastructure: 0.408% avg pipe failure probability, 53% of ZIPs at high risk
69.8% of homes built before 1978 (lead paint era)
Violation History (2022–2025)
↓ Improving trendEPA violation counts by year across Grant County water systems. Health-based shown in red, total in blue.
Peak year: 2022 with 6 violations. Past 5 years: 10 total (10 health-based). Health-based violations are declining versus the prior 2-year window.
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
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: $1,854
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
14,629 housing units in Grant 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 Grant County
Remediation costs are relatively manageable for most homeowners in Grant 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 Grant 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 Grant County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Arenas Valley Mdwca | 1,204 | 55 |
| 2 | SILVER CITY WATER SYSTEM | 14,400 | 50 |
| 3 | Pinos Altos Mdwca | 348 | 42 |
| 4 | Rosedale Mdwca | 254 | 42 |
| 5 | Burro Mountain Homestead | 415 | 42 |
16 total water systems serve Grant County.
All ZIP Codes in Grant County
18 ZIP codes tracked in Grant County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 88023 | Bayard | 83 | B | 0 | $118K |
| 2 | 88026 | Santa Clara | 81 | B | 4 (1 health) | $121K |
| 3 | 88022 | Arenas Valley | 79 | B | 8 (1 health) | $169K |
| 4 | 88049 | Mimbres | 79 | B | 5 (1 health) | $178K |
| 5 | 88043 | Hurley | 77 | B | 7 | $87K |
| 6 | 88061 | Silver City | 74 | B | 21 (3 health) | $185K |
| 7 | 88065 | Tyrone | 74 | B | 14 (2 health) | $176K |
| 8 | 88053 | Pinos Altos | 72 | B | 0 | — |
| 9 | 88062 | Silver City | 72 | B | 21 (3 health) | — |
| 10 | 88040 | Hachita | 71 | B | 4 (1 health) | — |
| 11 | 88041 | Hanover | 59 | C | 1 (1 health) | $146K |
| 12 | 88025 | Buckhorn | 53 | D | 0 | $271K |
| 13 | 88028 | Cliff | 53 | D | 0 | $198K |
| 14 | 88034 | Faywood | 53 | D | 0 | — |
| 15 | 88036 | Fort Bayard | 53 | D | 0 | — |
| 16 | 88038 | Gila | 53 | D | 0 | $223K |
| 17 | 88051 | Mule Creek | 53 | D | 0 | $169K |
| 18 | 88055 | Redrock | 53 | D | 0 | — |
Recommended Buyer Guides for Grant County
Filtered against EPA monitoring data and CDC lead-exposure guidance, the guides below skip the generic catalog and connect directly to the contaminants and hazards on file here.
- Best Lead Paint Test Kits — 69.8% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best HEPA Air Purifiers for Wildfire Smoke — Wildfire is the top compound risk factor
Deep Dive Reports
Detailed analysis for Grant County, New Mexico
Overview
Grant County in New Mexico covers 18 ZIP codes with an average Home Safety Score of C (66/100).
9 of 18 ZIP codes have recorded EPA violations. 13 health-based violations have been documented.
← Back to New Mexico 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.