Caldwell is a city located in Idaho. With a 2020 population of 59,809, it is the 5th largest city in Idaho (after Boise, Meridian, Nampa, and Idaho Falls) and the 638th largest city in the United States. Caldwell is currently growing at a rate of 2.81% annually and its population has increased by 29.35% since the most recent census, which recorded a population of 46,237 in 2010. Spanning over 23 miles, Caldwell has a population density of 2,645 people per square mile.
The average household income in Caldwell is $56,498 with a poverty rate of 16.97%. The median rental costs in recent years comes to $845 per month, and the median house value is $136,200. The median age in Caldwell is 29.7 years, 28 years for males, and 31.5 years for females. For every 100 females there are 97.6 males.