Zachary is a city located in Louisiana. With a 2020 population of 18,278, it is the 17th largest city in Louisiana and the 1987th largest city in the United States. Zachary is currently growing at a rate of 1.67% annually and its population has increased by 22.18% since the most recent census, which recorded a population of 14,960 in 2010. Spanning over 26 miles, Zachary has a population density of 701 people per square mile.
The average household income in Zachary is $92,315 with a poverty rate of 8.26%. The median rental costs in recent years comes to $1,047 per month, and the median house value is $218,700. The median age in Zachary is 34.6 years, 33.5 years for males, and 35.4 years for females. For every 100 females there are 89.2 males.