Verkkocostco just raised starting wages again, this time to $17, costco confirmed to insider in an email. The raise went into effect on october 25. Verkkothe average worker made $17 an hour. The federal minimum wage was $5. 15 an hour at the time of sinegal's post interview, which came as lawmakers were bickering on raising it to $7. 25 an. Verkkocostco told employees last week that it would increase its minimum wage from $16 an hour to $17 starting on monday. Costco (cost) has around. Verkkoeffective this week, hourly, u. s. Costco workers will make a minimum of $16 an hour, costco ceo craig jelinek announced during a u. s. Verkkothe chief executive of costco waded into the political debate over the federal minimum wage, testifying at a senate hearing on thursday that the retailer.