MERCER ISLAND HIGH SCHOOL
9100 SE 42ND ST, Mercer Island, WA 98040
Last inspected Mar 23, 2026
Official source: Public Health — Seattle & King County (kingcounty.gov) · All data sources
Passed. Met health requirements at the latest inspection. Some health departments report pass/fail instead of letter grades.
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The record, in plain English
CleanPlate holds 5 inspections on record for MERCER ISLAND HIGH SCHOOL, spanning June 2022 to March 2026 — every one straight from Public Health — Seattle & King County.
It has held passed across its last two inspections.
No violations were recorded at the most recent inspection.
Every sentence above is computed directly from the official record — CleanPlate adds no opinions. How our grading works →
Inspection history
Mar 23, 2026
✓Mar 6, 2025
✓Sep 20, 2024
✓Mar 7, 2023
✓1 violation
- 4100 - Warewashing facilities properly installed, maintained, used; sanitizer concentration; test strips available and used
Jun 3, 2022
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<a href="https://www.cleanplateus.com/seattle/mercer-island-high-school--PFE-PR-3133512"><img src="https://www.cleanplateus.com/api/badge/seattle/PFE-PR-3133512" width="300" height="58" alt="CleanPlate health grade"></a>
Source: Public Health — Seattle & King County (kingcounty.gov). Data shown unmodified from the official government record. CleanPlate is an independent service, not affiliated with any government agency. See something wrong? Report a data issue.