About Zachary, LAZachary is located in Louisiana. Zachary, Louisiana has a population of 17,180. Zachary is more family-centric than the surrounding county with 37% households with children. The county percentage for households with children is 26%. The median household income in Zachary, Louisiana is $75,051. The median household income for the surrounding county is $52,612 compared to the national median of $57,525. The median age of people living in Zachary is 36.5 years. Zachary WeatherThe average high temperature in July is 90.7 degrees, with an average low temperature in January of 40.2 degrees. The annual precipitation is 63.31. Zachary MapZachary real estate officesReal estate near ZacharyNearby CitiesNearby Cities Homes for Sale |