Cost of living in St. Mary, MO

St. Mary is a Census city in Ste. Genevieve County, MO. ACS 2024 5-year population is 285. Median gross rent is $775 (ACS 2024 5-year, this place). Median home value is $120,000. Median household income is $49,643. Insurance is the NAIC state average; food is a USDA plan — no town indexes.