Caldwell is a city located in Sumner County Kansas. With a 2020 population of 963, it is the 198th largest city in Kansas and the 10457th largest city in the United States . Caldwell is currently declining at a rate of -1.23% annually and its population has decreased by -9.83% since the most recent census, which recorded a population of 1,068 in 2010. Caldwell reached it's highest population of 1,068 in 2010. Spanning over 1 miles, Caldwell has a population density of 901 people per square mile.
The average household income in Caldwell is $56,341 with a poverty rate of 21.70%. The median rental costs in recent years comes to $509 per month, and the median house value is $48,200. The median age in Caldwell is 51.2 years, 42.9 years for males, and 55.9 years for females.