Cooked?Costco Wholesale # 428
- gradeGrade A
- inspection score95 pts
- critical violations0
- last inspectedFebruary 27, 2026 →
- address2207 W Commonwealth Ave, Alhambra 91803
Is Costco Wholesale # 428 clean?
Costco Wholesale # 428 is currently Grade A from LA County Department of Public Health, Environmental Health, from an inspection on February 27, 2026. No critical violations were recorded at that visit. On Cooked's ladder that reads clean 😇.
What did inspectors find at Costco Wholesale # 428?
These are the violations recorded at the most recent inspection on February 27, 2026, in plain English, with the city's own wording underneath.
- ⚠️TOXIC SUBSTANCES PROPERLY IDENTIFIED, STORED, AND USED
- ⚠️PLUMBING: FIXTURES, BACKFLOW DEVICE, DRAINAGE
- ⚠️ADEQUATE HANDWASHING FACILITIES; SUPPLIED & ACCESSIBLE
- ⚠️FLOORS, WALLS AND CEILINGS PROPERLY BUILT, MAINTAINED AND CLEAN
When was Costco Wholesale # 428 last inspected?
Costco Wholesale # 428 has 3 inspections on record going back to October 2, 2023, averaging 97 points.
February 27, 2026 A
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View full inspection →January 29, 2025 A
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View full inspection →October 2, 2023 A
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View full inspection →Costco Wholesale # 428 vs City Of Alhambra
City Of Alhambra runs 87% clean across 301 tracked restaurants — 263 clean, 30 mid, 8 cooked.
Against the 301 spots Cooked tracks in City Of Alhambra, this one comes out cleaner than 49% of them.
Other spots in City Of Alhambra
How Los Angeles grades restaurants
Los Angeles County posts a letter placard in the window, and unlike New York the score runs the friendly way: higher is better. 90 to 100 points earns an A, 80 to 89 a B, and anything below that a C. The county inspects roughly every six months to a year depending on risk, and a failed inspection can close a kitchen until it is fixed. Because LA’s scores are final at the time of inspection — there is no pending window — a letter can be read straight off the score when the placard field is blank.
Read the Los Angeles ratings guide →
Inspection findings and available history come from the authority’s published records. Cooked checks daily, but the authority publishes in batches, so a recent visit may not appear yet. Read the date on each result and check the official source for newer information.
Source: LA County Department of Public Health, Environmental Health via LA County Open Data. Cooked refreshes this data daily — this listing's most recent inspection is dated February 27, 2026. Inspection results describe one moment in a kitchen's life, not a permanent verdict.
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