Costco
2400 Monument Blvd
Concord, CA 94520 925-566-4003
Concord, CA 94520 925-566-4003
Ratings
Consumer Ratings for Costco — 45 Ratings
Percent of customers who rated service "superior" for:
Advice on choice and use of products
Staff attitudes/atmosphere
Reliability (standing behind products, delivering on time, etc.)
Overall quality
Consumer Comments for Costco
Feb 28, 2025
Nov 02, 2024
May 17, 2024
...and 42 more consumer comments for Costco