Yavapai County, Arizona
34 ZIP codes · Avg score 63/100 · Grade C · Updated 2026-06-04
For most households in Yavapai County, the 34 tracked ZIP codes show adequate but uneven water quality.
How Yavapai County Compares
How Yavapai County Compares
Yavapai County scores 1 points below the Arizona state average (64/100) and 5 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Yavapai County, Arizona
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.7 (asthma 10.8%, diabetes 12.2%)
Estimated additional annual cost per homeowner: $2,968, driven primarily by wildfire
Infrastructure: 0.358% avg pipe failure probability, 24% of ZIPs at high risk
41.3% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↑ Worsening trendEPA violation counts by year across Yavapai County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 48 violations. Past 5 years: 112 total (112 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: $2,968
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
116,105 housing units in Yavapai 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 Yavapai County
Remediation costs are relatively manageable for most homeowners in Yavapai 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 Yavapai 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 Yavapai County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | City of Prescott | 42,217 | 355 |
| 2 | Granite Oaks Water Users Association | 1,200 | 321 |
| 3 | Black Canyon City Wid | 2,437 | 320 |
| 4 | Diamond Valley Water District | 2,000 | 304 |
| 5 | Ponderosa Park Dwid | 602 | 294 |
60 total water systems serve Yavapai County.
All ZIP Codes in Yavapai County
34 ZIP codes tracked in Yavapai County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 86337 | Seligman | 83 | B | 0 | $133K |
| 2 | 86340 | Sedona | 80 | B | 15 (1 health) | — |
| 3 | 86351 | Sedona | 80 | B | 15 (1 health) | $658K |
| 4 | 86341 | Sedona | 79 | B | 15 (1 health) | — |
| 5 | 86312 | Prescott Valley | 78 | B | 7 | — |
| 6 | 86314 | Prescott Valley | 78 | B | 7 | $364K |
| 7 | 86315 | Prescott Valley | 78 | B | 7 | $505K |
| 8 | 86335 | Rimrock | 77 | B | 9 (1 health) | $292K |
| 9 | 86343 | Crown King | 77 | B | 28 (2 health) | $439K |
| 10 | 85362 | Yarnell | 75 | B | 14 | $230K |
| 11 | 86332 | Kirkland | 74 | B | 5 (1 health) | $190K |
| 12 | 86320 | Ash Fork | 71 | B | 6 (1 health) | $187K |
| 13 | 86324 | Clarkdale | 71 | B | 8 | $345K |
| 14 | 86326 | Cottonwood | 71 | B | 6 (2 health) | $312K |
| 15 | 86334 | Paulden | 71 | B | 6 | $318K |
| 16 | 86321 | Bagdad | 70 | B | 4 | $50K |
| 17 | 86322 | Camp Verde | 70 | B | 26 (3 health) | $294K |
| 18 | 85332 | Congress | 69 | C | 6 | $237K |
| 19 | 86323 | Chino Valley | 69 | C | 27 | $350K |
| 20 | 86329 | Humboldt | 69 | C | 3 | $268K |
| 21 | 86333 | Mayer | 69 | C | 14 | $173K |
| 22 | 86325 | Cornville | 62 | C | 11 | $409K |
| 23 | 86331 | Jerome | 59 | C | 4 | $312K |
| 24 | 85324 | Black Canyon City | 58 | C | 26 (5 health) | $287K |
| 25 | 86327 | Dewey | 58 | C | 47 (26 health) | $360K |
| 26 | 86342 | Lake Montezuma | 55 | C | 0 | — |
| 27 | 85360 | Wikieup | 53 | D | 0 | $144K |
| 28 | 86338 | Skull Valley | 53 | D | 0 | $633K |
| 29 | 86301 | Prescott | 36 | F | 49 (20 health) | $495K |
| 30 | 86303 | Prescott | 36 | F | 49 (20 health) | $502K |
| 31 | 86305 | Prescott | 36 | F | 49 (20 health) | $627K |
| 32 | 86302 | Prescott | 27 | F | 49 (20 health) | — |
| 33 | 86304 | Prescott | 27 | F | 49 (20 health) | — |
| 34 | 86313 | Prescott | 27 | F | 49 (20 health) | — |
Recommended Buyer Guides for Yavapai County
While many sites publish identical guide lists across every county they cover, the selection here changes by location — driven by the EPA, NSF, FEMA, and CDC datasets that describe the actual conditions documented for this jurisdiction in the federal record.
- 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 Yavapai County, Arizona
Overview
Yavapai County in Arizona covers 34 ZIP codes with an average Home Safety Score of C (63/100).
30 of 34 ZIP codes have recorded EPA violations. 164 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.