King of Prussia is a city located in Chester County and Montgomery County Pennsylvania. King of Prussia has a 2020 population of 21,313. King of Prussia is currently declining at a rate of 0.00% annually and its population has increased by 6.91% since the most recent census, which recorded a population of 19,936 in 2010. King of Prussia reached it's highest population of in .
The average household income in King of Prussia is $109,749 with a poverty rate of 3.66%. The median rental costs in recent years comes to $1,456 per month, and the median house value is $320,800. The median age in King of Prussia is 38 years, 36.6 years for males, and 41 years for females.