Costco Wholesale (COST) Monthly Sales Update June 2026 summary

Sales performance overview

• Net sales for June reached $29.24 billion, up 10.6% year-over-year.

• Total company comparable sales rose 8.8%, with digitally enabled sales up 20.9% for the five weeks.

• Excluding gasoline and FX, comparable sales increased 7.0% company-wide and 7.6% in the U.S.

• Comp traffic grew 3.2% globally and in the U.S.

• Net sales for the first 44 weeks totaled $250.43 billion, a 10.1% increase from last year.

Regional and category highlights

• U.S. regions with strongest comparable sales were Midwest, Southeast, and Northeast.

• Comparable sales for the five-week period rose 10.6% in the U.S., 7.9% in Canada, and 3.7% in other international markets.

• Internationally, Taiwan, the UK, and Korea led in local currency sales growth.

• Foods and sundries grew low to mid-single digits, with food, candy, and frozen foods outperforming.

• Fresh foods rose mid-single digits, led by bakery and meat.

Ancillary and merchandising performance

• Ancillary business sales surged in the high 20% range.

• Pharmacy, gas, and hearing aid departments were top performers.

• Gas sales rose in the low 30% range, driven by higher average price per gallon.

• Average worldwide selling price per gallon increased 22.4% year-over-year.

• Average transaction value was up 5.5%, or 3.7% excluding gas inflation and FX.