Cost of living in Frontenac, MO

Frontenac is a Census city in St. Louis County, MO. ACS 2024 5-year population is 3,701. Rent uses St. Louis County ACS 2024 5-year median gross rent; Frontenac is too small for ACS housing. HUD FMR not bundled. Median home value is $979,800. Median household income is $233,425. Insurance is the NAIC state average; food is a USDA plan — no town indexes.