St. Mary is a city in Ste. Genevieve County, Missouri, United States. The population was 309 at the 2020 census.

Nov 21, 2025 · Board of Aldermen Meeting Notices Minutes Meeting Videos City of St. Mary, Missouri Ste. Genevieve County Population: 309 (2020 Census) Mayor Adam Bequette

Get directions, maps, and traffic for St. Mary, MO. Check flight prices and hotel availability for your visit.

Welcome to our dedicated page for St. Mary, located in the state of Missouri, Ste. Genevieve County. Here, you will find detailed information about this city, including its geographical location, population …

Places to see, ways to wander, and signature experiences. A mix of the charming, modern, and tried and true. Can't-miss spots to dine, drink, and feast. Saint Mary Tourism: Tripadvisor has 37 reviews …

The mission of our Society is to preserve and protect our holy landmark while continuing to share our Catholic faith through the use of our chapel as a holy place of worship for future generations. Masses …

According to our research of Missouri and other state lists, there were 21 registered sex offenders living in St. Mary, Missouri as of November 18, 2025. The ratio of all residents to sex offenders in St. Mary …

St. Mary is a town in Missouri with a population of 255. Mary is in Ste. Genevieve County. Living in St. Mary offers residents a suburban rural mix feel and most residents own their homes. Residents of St. …

The average household income in St. Mary is $57,010 with a poverty rate of 24.8%. The median age in St. Mary is 52.2 years: 38.3 years for males, and 56.8 years for females.

Fourth and Merchant streets Ste. Geneviève, MO 63670 573.883.0584 Website Guided group tours may be arranged at any time by Category: Arts and History, Family Fun, Museums, and Things to Do