PARADE most-attended event St. Louis St. Patrick's Day Parade Run Webpage irishparade.org www.irishparade.org St Patrick's Day Parade irishparade.org irishparade.org St. Patrick's Day Parade. 5 mile run through the streets of St. Louis St. Louis St. Louis St. Patrick’s Day Parade – March 16, 2019 IrishParade.org St. Louis St Patrick's Day Parade www.irishparade.org Downtown parade PARADE St. Patrick’s Day Parade Downtown parade annual St. Patrick’s Day Parade and Run! St. Patrick’s Day Parade Website 5-mile downtown run-