On average, employees in Mira Loma, CA at Costco give their company a 5.0 rating out of 5.0 based on 1, whereas overall Average Rating of Costco is 4.0 out of 5.0 based on 163 Costco Review Ratings. The happiest Costco employees in Mira Loma, CA are Customer Service Representatives submitting an average rating of 4.0.
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