Data source: EPA SDWIS Last verified: 2026-06-04

Water quality varies significantly across Glendale, AZ. We analyzed 12 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.

City Overview: Grade C (69/100)

Grade	Neighborhoods	%
A	0	0%
B	2	17%
C	10	83%
D	0	0%
F	0	0%

Neighborhood Rankings

Every ZIP code in Glendale ranked by Home Safety Score:

Rank	ZIP Code	Score	Grade	Violations	Lead Risk
1	85303	72	B	68	0.0015 mg/L
2	85310	72	B	68	0.0015 mg/L
3	85305	69	C	68	0.0015 mg/L
4	85307	69	C	68	0.0015 mg/L
5	85311	69	C	68	0.0015 mg/L
6	85312	69	C	68	0.0015 mg/L
7	85318	69	C	68	0.0015 mg/L
8	85301	67	C	68	0.0015 mg/L
9	85302	67	C	68	0.0015 mg/L
10	85304	67	C	68	0.0015 mg/L
11	85306	67	C	68	0.0015 mg/L
12	85308	67	C	68	0.0015 mg/L

How Neighborhoods Compare

Each ZIP code compared to county and state averages:

• 12 neighborhoods score better than county average
• 0 neighborhoods score worse than county average

EPA Violations

• 816 total violations across Glendale
• 96 health-based violations
• 12 of 12 ZIP codes have violations
• 0 ZIP codes exceed EPA lead action level

Top Contaminants

Contaminant	Violations	ZIPs
Consumer Confidence Report Rule	348	12
Stage 1 DBP Rule	144	12
Revised Total Coliform Rule	108	12
Barium	36	12
Total Trihalomethanes (TTHM)	36	12

Frequently Asked Questions

What is the safest neighborhood in Glendale?

ZIP code 85303 has the highest safety score in Glendale at 72/100 (grade B). Check the full report for details.

Is Glendale water safe to drink?

Glendale has an average water safety score of 69/100 (C). Water quality varies by neighborhood — no ZIP codes currently exceed EPA lead limits. Always check your specific ZIP code.

Related Pages

• Glendale, AZ city page
• Arizona state rankings
• All Arizona alerts

Data Sources

• EPA SDWIS
• U.S. Census Bureau

Updated daily.