St. Mary is a city located in Randolph County, Perry County, and Ste. Genevieve County Missouri. St. Mary has a 2024 population of 313. St. Mary is currently growing at a rate of 0.64% annually and its population has increased by 1.95% since the most recent census, which recorded a population of 307 in 2020.
The average household income in St. Mary is $58,788 with a poverty rate of 18.33%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in St. Mary is 52.6 years, 42 years for males, and 56.2 years for females.
According to the most recent ACS, the racial composition of St. Mary was:
White
Two or more races
Black or African American
Native American
Asian
Native Hawaiian or Pacific Islander
Other race
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 94 | 2.55 | 74.5 | 25.5 |
| Non Family | 41 | 1.15 | 75.6 | 24.4 |
| Married | 31 | 2.81 | 93.5 | 6.5 |
| Male | 15 | 4.2 | 60 | 40 |
| Female | 7 | 6.14 | 14.3 | 85.7 |
3.45
Average Family Size
2.55
Average Household Size
74.5%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
The highest rate of high school graduation is among 2+ races people with a rate of 100%.
The highest rate of bachelors degrees is among black people with a rate of 35.71%.
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
98.19% of St. Mary residents speak only English, while 1.81% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.81% of the population.
rate
18.33%
Overall Poverty Rate
20%
Male Poverty Rate
16.92%
Female Poverty Rate
The race most likely to be in poverty in St. Mary is Multiple, with 87.1% below the poverty level.
The race least likely to be in poverty in St. Mary is White, with 9.39% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 3.33%. Among those working part-time, it was 20.41%, and for those that did not work, the poverty rate was 11.96%.
Married
Widowed
Divorced
Separated
NeverMarried
33.8%
Overall Marriage Rate
38.2%
Male Marriage Rate
30.4%
Female Marriage Rate
male
female
The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 45-54.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
0%
Veteran Poverty Rate
76%
Veteran Disability Rate
LaborForceParticipation
51.7%
Labor Force Participation
47.3%
Employment Rate
8.7%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
85%
Born in St. Mary
100%
Native Born
0%
Foreign Born
0%
Non Citizen
0%
Naturalized
100% of St. Mary residents were born in the United States, with 85% having been born in Missouri. 0% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2029 | 320 | 1 | 0.31% |
| 2028 | 319 | 2 | 0.63% |
| 2027 | 317 | 1 | 0.32% |
| 2026 | 316 | 2 | 0.64% |
| 2025 | 314 | 1 | 0.32% |
| 2024 | 313 | 2 | 0.64% |
| 2023 | 311 | 1 | 0.32% |
| 2022 | 310 | 1 | 0.32% |
| 2021 | 309 | 2 | 0.65% |
| 2020 | 307 | -42 | -12.03% |
| 2019 | 349 | 0 | 0% |
| 2018 | 349 | 1 | 0.29% |
| 2017 | 348 | -1 | -0.29% |
| 2016 | 349 | -1 | -0.29% |
| 2015 | 350 | -3 | -0.85% |
| 2014 | 353 | -1 | -0.28% |
| 2013 | 354 | 0 | 0% |
| 2012 | 354 | -9 | -2.48% |
| 2011 | 363 | 1 | 0.28% |
| 2010 | 362 | 0 | 0% |