Mohave County, Arizona
28 ZIP codes · Avg score 72/100 · Grade B · Updated 2026-06-03
Recent water monitoring in Mohave County shows 28 ZIP codes with consistently safe results.
How Mohave County Compares
How Mohave County Compares
Mohave County scores 8 points above the Arizona state average (64/100) and 4 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Mohave County, Arizona
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 15.4 (asthma 11%, diabetes 14.2%)
Estimated additional annual cost per homeowner: $1,603, driven primarily by wildfire
Infrastructure: 0.313% avg pipe failure probability, 11% of ZIPs at high risk
34.6% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↑ Worsening trendEPA violation counts by year across Mohave County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 36 violations. Past 5 years: 75 total (75 health-based). Health-based violations are rising versus the prior 2-year window — worth closer monitoring.
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: $1,603
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
117,413 housing units in Mohave 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 Mohave County
Remediation costs are relatively manageable for most homeowners in Mohave 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 Mohave 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 Mohave County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Bermuda Water Company Inc. | 25,000 | 269 |
| 2 | Bullhead City Mohave | 36,330 | 200 |
| 3 | North Mohave Valley | 5,190 | 144 |
| 4 | Desert Foothills | 3,091 | 144 |
| 5 | Silverview Rv Park | 800 | 144 |
36 total water systems serve Mohave County.
All ZIP Codes in Mohave County
28 ZIP codes tracked in Mohave County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 86429 | Bullhead City | 82 | B | 36 (1 health) | $320K |
| 2 | 86430 | Bullhead City | 82 | B | 36 (1 health) | — |
| 3 | 86433 | Oatman | 82 | B | 11 (1 health) | — |
| 4 | 86439 | Bullhead City | 82 | B | 36 (1 health) | — |
| 5 | 86431 | Chloride | 81 | B | 4 | $130K |
| 6 | 86436 | Topock | 81 | B | 5 (2 health) | $207K |
| 7 | 86438 | Yucca | 81 | B | 23 (2 health) | $278K |
| 8 | 86432 | Littlefield | 79 | B | 25 (1 health) | $216K |
| 9 | 86444 | Meadview | 79 | B | 6 | $151K |
| 10 | 86402 | Kingman | 78 | B | 28 (1 health) | — |
| 11 | 86434 | Peach Springs | 78 | B | 7 | $117K |
| 12 | 86442 | Bullhead City | 77 | B | 36 (1 health) | $174K |
| 13 | 86427 | Fort Mohave | 76 | B | 56 (4 health) | — |
| 14 | 86441 | Dolan Springs | 75 | B | 8 | $93K |
| 15 | 86401 | Kingman | 74 | B | 28 (1 health) | $247K |
| 16 | 86409 | Kingman | 74 | B | 28 (1 health) | $172K |
| 17 | 86446 | Mohave Valley | 74 | B | 13 (1 health) | — |
| 18 | 86426 | Fort Mohave | 73 | B | 56 (4 health) | $274K |
| 19 | 86404 | Lake Havasu City | 69 | C | 13 | $421K |
| 20 | 86406 | Lake Havasu City | 69 | C | 13 | $435K |
| 21 | 86413 | Golden Valley | 69 | C | 15 | $158K |
| 22 | 86440 | Mohave Valley | 69 | C | 13 (1 health) | $232K |
| 23 | 86403 | Lake Havasu City | 66 | C | 13 | $313K |
| 24 | 86405 | Lake Havasu City | 66 | C | 13 | — |
| 25 | 86437 | Valentine | 53 | D | 0 | $243K |
| 26 | 86443 | Temple Bar Marina | 53 | D | 0 | — |
| 27 | 86445 | Willow Beach | 53 | D | 0 | $171K |
| 28 | 86021 | Colorado City | 51 | D | 3 | $239K |
Recommended Buyer Guides for Mohave County
Independent picks. EPA-grounded. Matched here.
- 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 Mohave County, Arizona
Overview
Mohave County in Arizona covers 28 ZIP codes with an average Home Safety Score of B (72/100).
25 of 28 ZIP codes have recorded EPA violations. 23 health-based violations have been documented.
← Back to Arizona 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.