The Pittsburgh's annual St. Patrick's Parade always takes place the Saturday before or on March 17th each year.
The event, which features over 23,000 participants from Pittsburgh-area marching bands, elected leaders, and a host of Irish-heritage groups, begins at 10 a.m., following the same route that was established in 2010, stretching from the intersection of Liberty Avenue and 11th Street (Greyhound Bus Station), to the reviewing stand located Downtown on the Boulevard of the Allies at Stanwix Street.
The parade celebrates Pittsburgh's Irish heritage and is normally attended by 150,000 - 200,000 spectators. On warm sunshine-filled parade days, as many as 250,000 have attended the event, which for some serves as a kickoff to weeklong St. Patrick's Day observances.
The parade has enjoyed a 145-year history in the city, having occurred non-stop since 1950. According to U.S. Census data, more Pittsburghers claim Irish heritage than any other ethnic group in the region.
The event typically features nearly 200 marching units, including 20 bands, floats, several police, fire and emergency service agencies, along with groups from Pittsburgh's Irish and other ethnic communities. The highlights of the parade are the appearance of Pittsburgh's Miss Smiling Irish Eyes and St. Patrick Himself.