Gretna is located in Louisiana. Gretna, Louisiana 70056 has population of 17,023. Gretna 70056 is more family-centric than the surrounding county with 28% of the households with children.
The median household income in Gretna, Louisiana 70056 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 70056 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.
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