Understanding USPS Services and Observances on Columbus Day and Indigenous Peoples' Day
Columbus Day, observed on the second Monday in October, marks a significant federal holiday on which USPS services are suspended. Originally a celebration of Christopher Columbus's arrival in the Americas, the day is increasingly recognized as Indigenous Peoples' Day, acknowledging the impact of colonialism on Native Americans. In Illinois, distinct observances for both days occur. A wide array of services are affected or continue as usual during this holiday.