Gretna is located in Nebraska. Gretna, Nebraska has a population of 5,971. Gretna is more family-centric than the surrounding county with 39% households with children. The county percentage for households with children is 37%.
The median household income in Gretna, Nebraska is $96,100. The median household income for the surrounding county is $84,956 compared to the national median of $66,222. The median age of people living in Gretna is 36.8 years.
The average high temperature in July is 89.3 degrees, with an average low temperature in January of 10.3 degrees. The annual precipitation is 30.12.