Gridley is a city located in Kansas. With a 2020 population of 322, it is the 344th largest city in Kansas and the 15065th largest city in the United States. Gridley is currently declining at a rate of -0.62% annually and its population has decreased by -5.57% since the most recent census, which recorded a population of 341 in 2010. Gridley reached it's highest population of 340 in 2010. Spanning over 0 miles, Gridley has a population density of 752 people per square mile.
The average household income in Gridley is $53,396 with a poverty rate of 12.78%. The median rental costs in recent years comes to $764 per month, and the median house value is $70,000. The median age in Gridley is 32.7 years, 32.5 years for males, and 32.7 years for females. For every 100 females there are 83.3 males.