Pinal County, Arizona
49 ZIP codes · Avg score 64/100 · Grade C · Updated
ZipCheckup grade for Pinal County: C.
A mixed picture - some signals here are worth your attention.
Current EPA records place Pinal County in the middle tier for drinking water safety, with 49 ZIP codes showing a range of outcomes.
How Pinal County Compares
How Pinal County Compares
Pinal County scores 2 points below the Arizona state average (66/100) and 9 points below the national average (73/100).
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:
ZIP Code Risk Map
Water Quality Map: Pinal County, Arizona
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.5 (asthma 10.8%, diabetes 12.9%)
Estimated additional annual cost per homeowner: $1,648, driven primarily by wildfire
Violation History (2021–2025)
↑ Worsening trendEPA violation counts by year across Pinal County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 39 violations. Past 5 years: 102 total (102 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
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,648
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Pinal County
Remediation costs are relatively manageable for most homeowners in Pinal 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 Pinal County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Pinal County
8 community water systems serving Pinal County.
- C
- B
- C
- C
- C
- C
Show all 8 water systems
- D
- C
24 total water systems serve Pinal County.
Systems with the most violations in Pinal County
5 water systems with recorded EPA violations.
- C
- C
- C
- C
- C
All ZIP Codes in Pinal County
49 ZIP codes tracked in Pinal County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 85623 | Oracle | 75 | B | 0 | $385K |
| 2 | 85122 | Casa Grande | 74 | B | 2 | $243K |
| 3 | 85631 | San Manuel | 74 | B | 2 (1 health) | $113K |
| 4 | 85172 | Stanfield | 73 | B | 4 (1 health) | $163K |
| 5 | 85128 | Coolidge | 71 | B | 12 (2 health) | $208K |
| 6 | 85143 | San Tan Valley | 65 | C | 32 | $351K |
| 7 | 85140 | San Tan Valley | 64 | C | 35 | $412K |
| 8 | 85119 | Apache Junction | 58 | C | 97 (2 health) | $259K |
| 9 | 85120 | Apache Junction | 58 | C | 123 (2 health) | $163K |
| 10 | 85131 | Eloy | 58 | C | 70 (18 health) | $244K |
| 11 | 85138 | Maricopa | 58 | C | 96 (8 health) | $343K |
| 12 | 85139 | Maricopa | 58 | C | 166 (29 health) | $293K |
| 13 | 85132 | Florence | 42 | D | 72 (3 health) | $315K |
| 14 | 85117 | Apache Junction | — | — | — | |
| 15 | 85118 | Gold Canyon | — | — | 0 | $447K |
| 16 | 85121 | Bapchule | — | — | $93K | |
| 17 | 85123 | Arizona City | — | — | 25 (2 health) | $226K |
| 18 | 85130 | Casa Grande | — | — | — | |
| 19 | 85137 | Kearny | — | — | $132K | |
| 20 | 85141 | Picacho | — | — | — | |
| 21 | 85145 | Red Rock | — | — | $253K | |
| 22 | 85147 | Sacaton | — | — | $107K | |
| 23 | 85173 | Superior | — | — | 0 | $141K |
| 24 | 85178 | Apache Junction | — | — | — | |
| 25 | 85191 | Valley Farms | — | — | — | |
| 26 | 85192 | Winkelman | — | — | $157K | |
| 27 | 85193 | Casa Grande | — | — | 25 (2 health) | $119K |
| 28 | 85194 | Casa Grande | — | — | 72 (19 health) | $319K |
| 29 | 85218 | Apache Junction | — | — | — | |
| 30 | 85220 | Apache Junction | — | — | — | |
| 31 | 85222 | Casa Grande | — | — | — | |
| 32 | 85223 | Arizona City | — | — | — | |
| 33 | 85228 | Coolidge | — | — | — | |
| 34 | 85230 | Casa Grande | — | — | — | |
| 35 | 85231 | Eloy | — | — | — | |
| 36 | 85232 | Florence | — | — | — | |
| 37 | 85237 | Kearny | — | — | — | |
| 38 | 85238 | Maricopa | — | — | — | |
| 39 | 85239 | Maricopa | — | — | — | |
| 40 | 85240 | Queen Creek | — | — | — | |
| 41 | 85241 | Picacho | — | — | — | |
| 42 | 85243 | Queen Creek | — | — | — | |
| 43 | 85245 | Red Rock | — | — | — | |
| 44 | 85272 | Stanfield | — | — | — | |
| 45 | 85273 | Superior | — | — | — | |
| 46 | 85279 | Florence | — | — | — | |
| 47 | 85293 | Casa Grande | — | — | — | |
| 48 | 85294 | Casa Grande | — | — | — | |
| 49 | 85618 | Mammoth | — | — | 0 | $100K |
Recommended Buyer Guides for Pinal County
Editorial-only picks, screened against the EPA detections on file.
- Best Water Filters for PFAS — PFAS detected in 4 ZIP codes
- 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 Pinal County, Arizona
Overview
Pinal County in Arizona covers 49 tracked ZIP records with an average Home Safety Score of C (64/100) across 13 scored records.
15 of 19 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 59 health-based violations appear in the available health breakdown.
← Back to Arizona Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.