MERCER ISLAND HIGH SCHOOL
9100 SE 42ND ST, Mercer Island, WA 98040
Last inspected Sep 28, 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 11 inspections on record for MERCER ISLAND HIGH SCHOOL, spanning September 2021 to September 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
Sep 28, 2026
✓Mar 23, 2026
✓Sep 16, 2025
✓Mar 6, 2025
✓Sep 20, 2024
✓Mar 6, 2024
✓2 violations
- 3600 - Proper eating, tasting, drinking, or tobacco use
- 3200 - Insects, rodents, animals not present; entrance controlled
Sep 19, 2023
✓Mar 7, 2023
✓Oct 26, 2022
✓Jun 3, 2022
✕2 violations
- 4100 - Warewashing facilities properly installed, maintained, used; sanitizer concentration; test strips available and used
- 2120 - Proper cold holding temperatures; between 42 to 45 degrees Fahrenheit (F) (6 to 7 degrees Celsius (C))
Sep 29, 2021
✓1 violation
- 3300 - Potential food contamination prevented during delivery, preparation, storage, display
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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.