Data source: EPA SDWIS Last verified: 2026-06-03

Water quality varies significantly across Oakland, CA. We analyzed 26 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.

City Overview: Grade B (76/100)

Grade	Neighborhoods	%
A	0	0%
B	24	92%
C	2	8%
D	0	0%
F	0	0%

Neighborhood Rankings

Every ZIP code in Oakland ranked by Home Safety Score:

Rank	ZIP Code	Score	Grade	Violations	Lead Risk
1	94606	79	B	2	0.0033 mg/L
2	94607	79	B	2	0.0033 mg/L
3	94609	79	B	2	0.0033 mg/L
4	94612	79	B	2	0.0033 mg/L
5	94604	78	B	2	0.0033 mg/L
6	94613	78	B	2	0.0033 mg/L
7	94614	78	B	2	0.0033 mg/L
8	94615	78	B	2	0.0033 mg/L
9	94617	78	B	2	0.0033 mg/L
10	94622	78	B	2	0.0033 mg/L
11	94623	78	B	2	0.0033 mg/L
12	94624	78	B	2	0.0033 mg/L
13	94649	78	B	2	0.0033 mg/L
14	94659	78	B	2	0.0033 mg/L
15	94660	78	B	2	0.0033 mg/L
16	94661	78	B	2	0.0033 mg/L
17	94666	78	B	2	0.0033 mg/L
18	94601	74	B	2	0.0033 mg/L
19	94602	74	B	2	0.0033 mg/L
20	94603	74	B	2	0.0033 mg/L
21	94610	74	B	2	0.0033 mg/L
22	94618	74	B	2	0.0033 mg/L
23	94619	74	B	2	0.0033 mg/L
24	94621	74	B	2	0.0033 mg/L
25	94605	69	C	2	0.0033 mg/L
26	94611	69	C	2	0.0033 mg/L

How Neighborhoods Compare

Each ZIP code compared to county and state averages:

• 24 neighborhoods score better than county average
• 2 neighborhoods score worse than county average

EPA Violations

• 52 total violations across Oakland
• 26 health-based violations
• 26 of 26 ZIP codes have violations
• 0 ZIP codes exceed EPA lead action level

Top Contaminants

Contaminant	Violations	ZIPs
Stage 1 DBP Rule	26	26
E. coli	26	26

Frequently Asked Questions

What is the safest neighborhood in Oakland?

ZIP code 94606 has the highest safety score in Oakland at 79/100 (grade B). Check the full report for details.

Is Oakland water safe to drink?

Oakland has an average water safety score of 76/100 (B). Water quality varies by neighborhood — no ZIP codes currently exceed EPA lead limits. Always check your specific ZIP code.

Related Pages

• Oakland, CA city page
• California state rankings
• All California alerts

Data Sources

• EPA SDWIS
• U.S. Census Bureau

Updated daily.