The Dominick's potential layoff number could top 6,000. According to Chicago Tribune:
The state’s employers gave notice of possible layoffs to nearly 1,800 workers last month, according to a report filed Thursday.
That includes almost 500 more at Dominick’s, which is closing all its Chicago-area stores it hasn’t sold on Dec. 28. Dominick's parent, California-based Safeway, had already warned of more than 5,600 layoffs the previous month.