Caldwell is a city located in Canyon County Idaho. It is also the county seat of Canyon County. With a 2020 population of 62,487, it is the 5th largest city in Idaho (after Boise, Meridian, Nampa, and Idaho Falls) and the 611th largest city in the United States . Caldwell is currently growing at a rate of 3.31% annually and its population has increased by 35.15% since the most recent census, which recorded a population of 46,237 in 2010. Caldwell reached it's highest population of 62,487 in 2021. Spanning over 23 miles, Caldwell has a population density of 2,763 people per square mile.
The average household income in Caldwell is $58,143 with a poverty rate of 16.51%. The median rental costs in recent years comes to $878 per month, and the median house value is $152,400. The median age in Caldwell is 29.7 years, 29.1 years for males, and 30.4 years for females.