Gardner is a city located in Kansas. With a 2020 population of 22,259, it is the 19th largest city in Kansas and the 1696th largest city in the United States. Gardner is currently growing at a rate of 0.88% annually and its population has increased by 16.40% since the most recent census, which recorded a population of 19,123 in 2010. Spanning over 10 miles, Gardner has a population density of 2,164 people per square mile.
The average household income in Gardner is $82,119 with a poverty rate of 5.54%. The median rental costs in recent years comes to $1,056 per month, and the median house value is $178,700. The median age in Gardner is 32.2 years, 32.1 years for males, and 32.4 years for females. For every 100 females there are 92.7 males.