Chesterfield is a city located in Missouri. With a 2020 population of 47,558, it is the 14th largest city in Missouri and the 832nd largest city in the United States. Chesterfield is currently declining at a rate of -0.09% annually but its population has increased by 0.16% since the most recent census, which recorded a population of 47,484 in 2010. Chesterfield reached it's highest population of 47,749 in 2015. Spanning over 34 miles, Chesterfield has a population density of 1,492 people per square mile.
The average household income in Chesterfield is $144,259 with a poverty rate of 4.72%. The median rental costs in recent years comes to $1,177 per month, and the median house value is $370,300. The median age in Chesterfield is 46.6 years, 45.3 years for males, and 48.3 years for females. For every 100 females there are 92.2 males.