Join area seniors 55+ as they shop + dine along Downtown Belleville’s Main Street Friday, October 20th from 10am - 1pm on Main Street Senior Day! Seniors will explore Main Street and enjoy an after-party at the PSOP building (hosted by Main Street Senior Day sponsors, PSOP & St. Clair County Office on Aging) full of fun & giveaways provided by our Belleville Main Street merchants.