Cost of living in King of Prussia, PA

King of Prussia is a census-designated place in Montgomery County, PA. ACS 2024 5-year population is 25,857. Median gross rent is $2,077 (ACS 2024 5-year, this place). Median home value is $436,200. Median household income is $117,912. Insurance is the NAIC state average; food is a USDA plan — no town indexes.