Neighborhood Report Grade B

South San Francisco, CA Neighborhood Water Quality — Clean Compliance

2 ZIP codes · 0 EPA violations

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

Water quality varies significantly across South San Francisco, CA. We analyzed 2 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.

City Overview: Grade B (78/100)

Grade Neighborhoods %
A 0 0%
B 2 100%
C 0 0%
D 0 0%
F 0 0%

Neighborhood Rankings

Every ZIP code in South San Francisco ranked by Home Safety Score:

Rank ZIP Code Score Grade Violations Lead Risk
1 94083 83 B 0 0.0029 mg/L
2 94080 73 B 0 0.0029 mg/L

How Neighborhoods Compare

Each ZIP code compared to county and state averages:

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

Frequently Asked Questions

What is the safest neighborhood in South San Francisco?

ZIP code 94083 has the highest safety score in South San Francisco at 83/100 (grade B). Check the full report for details.

Is South San Francisco water safe to drink?

South San Francisco has an average water safety score of 78/100 (B). Water quality varies by neighborhood — no ZIP codes currently exceed EPA lead limits. Always check your specific ZIP code.

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Data Sources

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