La Paz County, Arizona
9 ZIP codes · Avg score 78/100 · Grade B · Updated
ZipCheckup grade for La Paz County: B.
This ZIP looks solid, with a few items worth a quick check.
Although county size varies, La Paz County's 9 ZIP codes share reliably safe tap water records and above-average compliance scores.
How La Paz County Compares
How La Paz County Compares
La Paz County scores 12 points above the Arizona state average (66/100) and 5 points above 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: La Paz County, Arizona
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 17 (asthma 10.6%, diabetes 17.5%)
Estimated additional annual cost per homeowner: $909, driven primarily by flood
56.9% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
→ Stable trendEPA violation counts by year across La Paz County water systems. Health-based shown in red, total in blue.
Peak year: 2023 with 8 violations. Past 5 years: 22 total (22 health-based).
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: $909
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
13,692 housing units in La Paz 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 La Paz County
Remediation costs are relatively manageable for most homeowners in La Paz 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 La Paz County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving La Paz County
5 community water systems serving La Paz County.
- B
- B
- B
Systems with the most violations in La Paz County
5 water systems with recorded EPA violations.
- B
- B
- B
All ZIP Codes in La Paz County
9 ZIP codes tracked in La Paz County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 85344 | Parker | 78 | B | 12 | $173K |
| 2 | 85325 | Bouse | — | — | $124K | |
| 3 | 85328 | Cibola | — | — | 115 (15 health) | $38K |
| 4 | 85334 | Ehrenberg | — | — | 115 (15 health) | — |
| 5 | 85346 | Quartzsite | — | — | 5 | $79K |
| 6 | 85348 | Salome | — | — | $99K | |
| 7 | 85357 | Wenden | — | — | — | |
| 8 | 85359 | Quartzsite | — | — | — | |
| 9 | 85371 | Poston | — | — | — |
Recommended Buyer Guides for La Paz County
Retailer arrangements don't shape what appears here - the selection logic is independent, filtered against EPA detections and the federal hazard data on file for this county.
- Best Lead Paint Test Kits — 56.9% of homes built before 1978
- 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 La Paz County, Arizona
Overview
La Paz County in Arizona covers 9 tracked ZIP records with an average Home Safety Score of B (78/100) across 1 scored records.
4 of 4 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 15 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.