Black baristas at airport Starbucks make a median wage of $11.15 an hour, $1.85 less than white baristas, according to a report released Tuesday by the hospitality workers’ union Unite Here.

The union examined 2019 employment data of more than 2,000 unionized workers — 85 percent of whom were people of color, and 35 percent Black women — at 142 stores operated by HMSHost in 27 airports around the country, including in Boston.

In March of 2018, Starbucks announced that it had reached 100 percent pay equity for men, women, and people of color doing similar jobs at its US stores. In May of that year, Starbucks closed more than 8,000 US stores for a day for racial bias training following an incident in which two Black men were arrested at a Starbucks in Philadelphia.