On Friday, the minimum wage in Chicago and Cook County increased. In Chicago, companies with 21 employees or more will need to pay workers a minimum of $15.40 an hour. Those with less than 21 employees must pay at least $14.50 an hour. For tipped workers, the minimum is $9.24. In Cook County, workers will be paid at least $13.35 an hour, while at least $7.40 for tipped workers.