Costco’s membership‑based warehouse model has long been praised for delivering low prices, but a closer look at its workforce strategy reveals the true source of its sustained profitability.

According to a Forbes article published February 23, 2025, Costco’s employee turnover rate sits at roughly 6–8 %, a figure that is 86 % lower than the 60–70 % turnover typical of the broader retail sector. Its 2026 employee statistics report a 93 % one‑year retention rate, meaning that 93 out of every 100 employees who reach the one‑year mark remain with Costco. By contrast, Walmart’s turnover rates hover near the industry average, and its 2.1 million‑strong workforce is known for high churn.

The wage differential is a primary driver. Data from a 2026 wage guide indicate that Costco’s average hourly pay for comparable positions is roughly $1 higher than Walmart’s. In addition to higher base wages, Costco offers a benefits package that includes paid sick leave, paid holidays, and a robust health‑insurance program for full‑time employees. Walmart has increased its minimum wage in recent years, but its overall compensation structure remains lower.

Higher wages and benefits translate into lower recruitment and training costs. With fewer employees leaving, Costco reduces the expense of hiring new staff, orienting them to store operations, and correcting mistakes that arise from inexperience. The company’s low turnover also means that employees develop deeper product knowledge and become more efficient at handling customer inquiries and inventory management—efficiencies that help keep checkout lines short even when aisles are crowded.

Customers appear to respond positively to the experience. Surveys and customer‑service reviews consistently rate Costco higher than Walmart on satisfaction metrics. The company’s membership model, which requires an annual fee, may also create a sense of loyalty that encourages repeat visits. While the direct impact of employee satisfaction on membership renewal or basket size is not quantified in publicly available data, the correlation between low turnover, higher wages, and positive customer experience is widely acknowledged by industry analysts.

In summary, Costco’s strategy of paying employees more and investing in their retention has produced a workforce that is stable, skilled, and customer‑focused. The resulting operational efficiencies and positive shopping experience help the company maintain low prices while sustaining profitability. Walmart, by contrast, continues to rely on a larger, higher‑turnover workforce and a lower wage structure. As the retail landscape evolves, the contrast between these two giants underscores the importance of human‑capital strategy in achieving competitive advantage.