what county in gretna louisiana in
Gretna is located in southeast Louisiana. Gretna is part of Jefferson County. Gretna has 4.04 square miles of land area and 0.47 square miles of water area. As of 2010-2014, the total Gretna population is 17,801, which has grown 2.17% since 2000. The population growth rate is lower than the state average rate of 2.96% and is much lower than the national average rate of 11.61%. Gretna median household income is $34,158 in 2010-2014 and has grown by 21.71% since 2000.