Gretna is located in Jefferson Parish, LA. The population is 17,720, making Gretna the 6th largest city in Jefferson Parish.
There are 11 public schools in Gretna with an average Homefacts rating of B-. The total crime rate for Gretna is high , and there are 47 registered sex offenders residing in the city. Unemployment in Gretna is moderate and the median home sales price is $0. Detailed and up-to-date Gretna property reports are available for any property address.