Gretna is located in Louisiana. Gretna, Louisiana has a population of 17,023. Gretna is less family-centric than the surrounding county with 24% households with children. The county percentage for households with children is 26%.
The median household income in Gretna, Louisiana is $48,632. The median household income for the surrounding county is $56,590 compared to the national median of $66,222. The median age of people living in Gretna is 38.5 years.
The average high temperature in July is 91.18 degrees, with an average low temperature in January of 44.1 degrees. The annual precipitation is 61.59.