Yuma County, Arizona
12 ZIP codes · Avg score 70/100 · Grade B · Updated
ZipCheckup grade for Yuma County: B.
This ZIP looks solid, with a few items worth a quick check.
In current tracking cycles, Yuma County - spanning 12 ZIP codes - records above-average water quality outcomes; the county's compliance history over recent years shows few departures from federal standards.
How Yuma County Compares
How Yuma County Compares
Yuma County scores 4 points above the Arizona state average (66/100) and 3 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: Yuma County, Arizona
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.4 (asthma 9.7%, diabetes 14.5%)
Estimated additional annual cost per homeowner: $833, driven primarily by flood
39.2% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↑ Worsening trendEPA violation counts by year across Yuma County water systems. Health-based shown in red, total in blue.
Peak year: 2021 with 33 violations. Past 5 years: 81 total (45 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: $833
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
92,818 housing units in Yuma 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 Yuma County
Remediation costs are relatively manageable for most homeowners in Yuma 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 Yuma County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Yuma County
8 community water systems serving Yuma County.
- C
- C
- C
- C
- C
Show all 8 water systems
- C
9 total water systems serve Yuma County.
Systems with the most violations in Yuma County
5 water systems with recorded EPA violations.
- C
- C
- C
- C
All ZIP Codes in Yuma County
12 ZIP codes tracked in Yuma County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 85336 | Gadsden | 77 | B | 9 (3 health) | $198K |
| 2 | 85349 | San Luis | 77 | B | 9 (3 health) | $197K |
| 3 | 85350 | Somerton | 67 | C | 69 (20 health) | $211K |
| 4 | 85364 | Yuma | 67 | C | 54 (17 health) | $204K |
| 5 | 85365 | Yuma | 67 | C | 515 (81 health) | $190K |
| 6 | 85367 | Yuma | 67 | C | 236 | $185K |
| 7 | 85333 | Dateland | — | — | 10 | — |
| 8 | 85347 | Roll | — | — | — | |
| 9 | 85352 | Tacna | — | — | — | |
| 10 | 85356 | Wellton | — | — | 129 (33 health) | $117K |
| 11 | 85366 | Yuma | — | — | — | |
| 12 | 85369 | Yuma | — | — | — |
Recommended Buyer Guides for Yuma County
Editorial methodology pairs each documented risk in this county with the buyer category that addresses it, drawing on water-quality detections, housing-stock lead exposure, EPA Radon Zone designation, and FEMA flood and wildfire ratings. NSF-certified options surface where applicable, and products that match the specific contaminant take priority.
- Best Water Filters for PFAS — PFAS detected in 2 ZIP codes
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Deep Dive Reports
Detailed analysis for Yuma County, Arizona
Overview
Yuma County in Arizona covers 12 tracked ZIP records with an average Home Safety Score of B (70/100) across 6 scored records.
8 of 8 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 84 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.