Cooked?Lou's Diner
- gradeGrade A
- inspection score3 pts
- critical violations0
- last inspectedFebruary 2, 2026
- address431 S Decatur, Las Vegas 89107
Is Lou's Diner clean?
Lou's Diner is currently Grade A from Southern Nevada Health District (SNHD), from an inspection on February 2, 2026. No critical violations were recorded at that visit. On Cooked's ladder that reads clean 😇.
What did inspectors find at Lou's Diner?
These are the violations recorded at the most recent inspection on February 2, 2026, in plain English, with the city's own wording underneath.
- ⚠️Effective pest control measures. Animals restricted as required.Effective pest control measures. Animals restricted as required.
- ⚠️Signs and certifications as required.Signs and certifications as required.
When was Lou's Diner last inspected?
Lou's Diner has 14 inspections on record going back to September 17, 2020, averaging 8 points. The 12 most recent are shown below.
| date | result | score |
|---|---|---|
| February 2, 2026 | Grade A | 3 pts |
| September 18, 2025 | Grade A | 10 pts |
| February 7, 2025 | Grade A | 6 pts |
| October 3, 2024 | Grade A | 6 pts |
| January 25, 2024 | Grade A | 0 pts |
| January 23, 2024 | Grade B | 19 pts |
| January 3, 2023 | Grade A | 0 pts |
| June 21, 2022 | Grade A | 3 pts |
| June 14, 2022 | Grade B | 18 pts |
| August 4, 2021 | Grade A | 6 pts |
| July 27, 2021 | Grade B | 16 pts |
| February 25, 2021 | Grade A | 8 pts |
Lou's Diner vs Las Vegas
Las Vegas runs 99% clean across 12,053 tracked restaurants — 11,116 clean, 123 mid, 29 cooked.
Against the 12,053 spots Cooked tracks in Las Vegas, this one comes out cleaner than 40% of them.
Other spots in Las Vegas
How Las Vegas grades restaurants
The Southern Nevada Health District grades on demerits, and here more is worse: roughly 0–10 demerits earns an A, 11–20 a B, and 21 or more a C. Serious problems can skip the ladder entirely — an imminent health hazard gets the permit suspended and the kitchen shut on the spot, which shows up as a closure rather than a letter. SNHD covers all of Clark County, so Henderson, North Las Vegas and the unincorporated Strip all run the same scheme. Cooked reads A as clean, B as mid, C or a closure as cooked.
Source: Southern Nevada Health District (SNHD) via SNHD Restaurant Inspections. Cooked refreshes this data daily — this listing's most recent inspection is dated February 2, 2026. Inspection results describe one moment in a kitchen's life, not a permanent verdict.
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