Gretna is located in Nebraska. Gretna, Nebraska has a population of 5,106. Gretna is less family-centric than the surrounding county with 33.01% of the households containing married families with children. The county average for households married with children is 38.97%.
The median household income in Gretna, Nebraska is $85,476. The median household income for the surrounding county is $88,408 compared to the national median of $69,021. The median age of people living in Gretna is 36.2 years.
The average high temperature in July is 87.3 degrees, with an average low temperature in January of 12.4 degrees. The average rainfall is approximately 31.7 inches per year, with 34.7 inches of snow per year.
