ZipCheckup grade for 85643: B.

This ZIP has a few items worth a quick check.

Water Quality Report
B 78

Willcox, AZ (85643): 15 Violations Recorded for Mapped Water Systems - 78/100

EPA data for City of Willcox

EPA records for the water systems mapped to 85643 in Willcox, AZ contain 15 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 0 are marked health-based.

Data source: U.S. Environmental Protection Agency (EPA) SDWIS

Based on EPA Drinking Water FEMA Flood Data U.S. Census CDC Energy Information Admin. USGS Water Data & 9 more federal sources
Latest air quality, EPA records and weather alerts Current data temporarily unavailable
Current EPA violation data unavailable
Water records and current conditions
Current EPA violation data unavailable
Safety Score
B 78/100
Water Quality Concerns 15 non-health-based violation records in EPA data
Lead Risk Below action level Below the reporting limit, 90th percentile, sample period ending 2025-12-31
NFIP Claim History Claim records 24 claims
Data confidence: High (direct measurement) Medium (sampled / sub-geography) Low (modeled / inferred) Methodology →

At a Glance

  • Water EPA records for water systems mapped to this ZIP show 15 violations (non-health) (since 2021).
  • Lead The reported 90th-percentile lead result is below the laboratory reporting limit, not a measured zero; EPA's health goal for lead is zero.
  • Radon EPA Zone 2 - county-level radon potential, not a home measurement.
  • Flood 24 cumulative NFIP claim records. Check the current FEMA map for a specific address.
Contaminant Summary
Violations on record (not health-based)
15 violations
Report data assembled: Jul 27, 2026 EPA water-system identity: source date or period is not present in ZipCheckup's accepted source record EPA violation history: more than two update cycles old Lead, copper and UCMR measurements: source date or period is not present in ZipCheckup's accepted source record
B
ZIP-level Home Safety model score: 78 / 100
Home Safety Score higher than 58% of ZIP codes nationwide
1
Water System
3,236
People Served
0
Health Violations (since 2021)
Groundwater
Water Source
Zone 2
County Radon Potential · Moderate
$162K
Median Home Value44% below state median ($287K)

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Score Breakdown

Overall Home Safety Score: 78/100

This is the published model score. Component and domain values are shown independently; they are not added together on this page.

Canonical components

EPA water compliance
70/100
Observed
PFAS MCL screen
100/100
Observed
EPA radon zone
50/100
Observed
Annual EPA AirData AQI
100/100
Observed

Required domains

Drinking water
85/100
Indoor environment
50/100
Outdoor environment
100/100

Coverage: 4 of 4 components and 3 of 3 domains observed.

Model 4.0.0; series home-safety-v4-cross-vertical.

Safety & Health (5) MODERATE

Your Water System

ZIP code 85643 in Willcox, Arizona is mapped to the water system City of Willcox (EPA ID: AZ0402035). This system provides water to approximately 3,236 people from groundwater sources.

Other Water Quality Reports in Arizona

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Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for City of Willcox (AZ0402035) on EPA.gov.

3 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.

📊 EPA Safe Drinking Water · View source →

UCMR 5 PFAS monitoring: no reportable detections in available records

Available federal UCMR5 records for water systems mapped to ZIP code 85643 show no PFAS detections among the compounds tested, at the program's reporting levels.

The EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR5) required community and non-transient non-community water systems serving 3,300 or more people to test for 29 PFAS compounds and lithium between 2023 and 2025. Systems with no detections at the federal minimum reporting level had no results at or above that reporting level.

📊 EPA UCMR5 · View source →
Environmental Hazards (11) HIGH
Home & Infrastructure (6) OK
Cost & Community (9) HIGH

CPSC product recall notices

These national notices are not matched to this ZIP code or water system.

View all recalls →

📊 CPSC · View source →

Protect Your Home in Willcox

Based on local data for ZIP 85643, these services may benefit homeowners in your area.

Based on local data for your area. Use the tools below to explore your options.

Home & Flood Insurance

The ZIP code for this report in Willcox has 24 FEMA flood claims on record. Standard homeowner policies don't cover flood damage - make sure you're protected.

Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote

Check Your Flood Zone (Free)

FEMA flood map lookup - see if your property is in a flood zone

Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)

Gutter Installation & Repair

The median home in 85643 was built around 1987. Aging gutters can cause foundation damage, basement flooding, and mold - a professional assessment can prevent costly repairs.

Typical cost: Gutter installation: typically $1,000–$2,500 for a standard home

Estimate Your Home Maintenance Costs

Roofing Inspection & Repair

Active weather alerts in Arizona increase the risk of roof damage from hail and high winds. A professional inspection can identify vulnerabilities.

Typical cost: Roof inspection: typically $75–$300; repairs $300–$1,500

Estimate Your Home Insurance Needs

Service recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.

Frequently Asked Questions

Is the tap water in 85643 safe to drink?

EPA SDWIS records 15 violations since 2021 across the water systems mapped to ZIP 85643 (primary system: City of Willcox), including 0 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.

Where does 85643's water come from?

The recorded water source for City of Willcox, a system mapped to ZIP code 85643, is Groundwater. This system serves approximately 3,236 people.

How does Willcox water compare to the national average?

Willcox's Home Safety Score ranks better than 58% of U.S. ZIP codes, and at or above 96% within Arizona.

How can I get my water tested in Willcox?

If City of Willcox supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.

What is the radon risk for 85643?

85643 is mapped to a county in EPA Radon Zone 2 (moderate county-level radon potential; EPA recommends testing every home), located in Graham County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.

What does the NFIP claim history show for ZIP 85643?

FEMA records contain 24 flood insurance claims filed in ZIP code 85643; the recorded rated-zone value (the most frequent one if there are several claims) is AO, which is claims evidence and may differ from the current FEMA map zone for a property. Claim records do not establish current property risk. Review FEMA's map for the specific property.

How to cite this page

APA ZipCheckup. (2026). Willcox, AZ (85643): 15 Violations Recorded for Mapped Water Systems - 78/100. https://zipcheckup.com/report/85643/
BibTeX 
@misc{zipcheckup-report-85643,
  author = {{ZipCheckup}},
  title  = {{Willcox, AZ (85643): 15 Violations Recorded for Mapped Water Systems - 78/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/85643/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 85643

ZIP Code City, State Distance Grade Violations
85644 Willcox, AZ 8.5 mi N/A 0
85606 Cochise, AZ 19.3 mi N/A 0
85605 Bowie, AZ 22.2 mi N/A 0
85609 Dragoon, AZ 25.9 mi N/A 13
85548 Safford, AZ 30.0 mi N/A 0
85551 Solomon, AZ 33.2 mi N/A 9
85552 Thatcher, AZ 33.7 mi N/A 9
85546 Safford, AZ 34.4 mi N/A 72
85531 Central, AZ 34.6 mi N/A 9
85670 Fort Huachuca, AZ 34.6 mi N/A 0

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Coverage: 13/17 risk factors Data sources →
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