St. James Parish is a parish located in the U.S. state of Louisiana. The parish seat is Convent. The parish was created in 1807. St. James Parish is a part of the New Orleans–Metairie, Louisiana metropolitan statistical area, sitting between New Orleans and Baton Rouge on the Mississippi River. According to the 2020 United States census, the population was 20,192.

The New Orleans metropolitan area, designated the New Orleans–Metairie metropolitan statistical area by the U.S. Office of Management and Budget, or simply Greater New Orleans, is a metropolitan statistical area designated by the United States Census Bureau encompassing seven Louisiana parishes—the equivalent of counties in other U.S. states—centered on the city of New Orleans. The population of Greater New Orleans was 1,271,845 in 2020, up from 1,189,166 at the 2010 United States census. Greater New Orleans is the most populous metropolitan area in Louisiana, and the 45th most populous in the United States. According to 2017 census estimates, the broader New Orleans–Metairie–Slidell combined statistical area (CSA) had a population of 1,510,562.