 garyville is a census-designated place (cdp) in st. john the baptist parish, louisiana, united states. the population was 2,775 at the 2000 census. it is part of the new orleans&ndash;metairie&ndash;kenner metropolitan statistical area. garyville has the distinction of being the location of the most recent oil refinery built in the united states in 1976 by marathon petroleum company. == geography == garyville is located at  (30.057346, -90.618488). according to the united states census bureau, the cdp has a total area of , of which,  of it is land and  of it is water. the total area is 6.43% water. == demographics == as of the census of 2000, there were 2,775 people, 913 households, and 717 families residing in the cdp. the population density was 132.6 people per square mile (51.2/kmÂ²). there were 984 housing units at an average density of 47.0 per square mile (18.2/kmÂ²). the racial ma
Census-designated_places_in_Louisiana Census-designated_places_in_New_Orleans_metropolitan_area Census-designated_places_in_St._John_the_Baptist_Parish,_Louisiana Louisiana_populated_places_on_the_Mississippi_River