St. Mary is a CDP located in Glacier County Montana. St. Mary has a 2024 population of 282. St. Mary is currently growing at a rate of 7.63% annually but its population has decreased by -51.3% since the most recent census, which recorded a population of 579 in 2020.
The average household income in St. Mary is -$1000.00 Mn with a poverty rate of 52.58%. The median age in St. Mary is 22 years: 21.6 years for males, and 24.6 years for females.
According to the most recent ACS, the racial composition of St. Mary was:
Race | Population | Percentage (of total) |
|---|---|---|
| White | 162 | 77.51% |
| Native American | 17 | 8.13% |
| Native Hawaiian or Pacific Islander | 15 | 7.18% |
| Other race | 15 | 7.18% |
| Black or African American | 0 | 0% |
| Asian | 0 | 0% |
| Two or more races | 0 | 0% |
White
Native American
Native Hawaiian or Pacific Islander
Other race
Black or African American
Asian
Two or more races
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 25 | 1.6 | 68 | 32 |
| Non Family | 17 | 0 | 100 | 0 |
| Married | 8 | 2.88 | 0 | 100 |
| Male | 0 | 0 | 0 | 0 |
| Female | 0 | 0 | 0 | 0 |
2.88
Average Family Size
1.6
Average Household Size
68.0%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Education Attained | Count | Percentage |
|---|---|---|
| 9th to 12th Grade | 0 | 0% |
| Associates Degree | 17 | 25.37% |
| Bachelors Degree | 15 | 22.39% |
| Graduate Degree | 8 | 11.94% |
| High School Graduate | 12 | 17.91% |
| Less Than 9th Grade | 0 | 0% |
| Some College | 15 | 22.39% |
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
Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 35 | 35 | 8 |
| Native American | 17 | 17 | 0 |
| Islander | 15 | 15 | 15 |
The highest rate of high school graduation is among white people with a rate of 100%.
The highest rate of bachelors degrees is among islander people with a rate of 100%.
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
57.42% of St. Mary residents speak only English, while 42.58% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 29.67% of the population.
rate
Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 135 | 43 | 31.85% |
| Hispanic | 27 | 27 | 100% |
| Native | 17 | 17 | 100% |
| Islander | 15 | 15 | 100% |
| Other | 15 | 15 | 100% |
52.58%
Overall Poverty Rate
45.37%
Male Poverty Rate
61.63%
Female Poverty Rate
The race most likely to be in poverty in St. Mary is Native, with 100% below the poverty level.
The race least likely to be in poverty in St. Mary is White, with 31.85% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 0%. Among those working part-time, it was 69.66%, and for those that did not work, the poverty rate was 100%.
rate
Rate | Poverty |
|---|---|
| Less Than 9th Grade | 0% |
| Bachelors or Greater | 65.22% |
| Some College | 53.13% |
| High School | 0% |
rate
Rate | Poverty |
|---|---|
| Male Employed | 39.8% |
| Male Unemployed | 0% |
| Female Unemployed | 100% |
| Female Employed | 41.07% |
Households
Families
MarriedFamilies
NonFamilies
Name | Median | Mean |
|---|---|---|
| Families | - | $-999,999,999 |
| Households | - | $-999,999,999 |
| Married Families | - | $-999,999,999 |
| Non Families | - | $-999,999,999 |
mean
median
Married
Widowed
Divorced
Separated
NeverMarried
11.9%
Overall Marriage Rate
0.0%
Male Marriage Rate
26.7%
Female Marriage Rate
male
female
The age group where males are most likely to be married is 15-19, while the female age group most likely to be married is 45-54.
Married
Widowed
Divorced
Separated
NeverMarried
Second Gulf War
First Gulf War
Vietnam
Korea
World War II
12
Number of Veterans
12
Male Veterans
0
Female Veterans
War | Veterans |
|---|---|
| Second Gulf War | 12 |
| First Gulf War | 0 |
| Vietnam | 0 |
| Korea | 0 |
| World War II | 0 |
count
Age Group | Veterans |
|---|---|
| 18 to 34 | 12 |
| 35 to 54 | 0 |
| 55 to 64 | 0 |
| 65 to 74 | 0 |
| 75+ | 0 |
count
Name | Veterans | % of Total |
|---|---|---|
| White | 12 | 8.16% |
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
0%
Veteran Poverty Rate
0%
Veteran Disability Rate
LaborForceParticipation
87.1%
Labor Force Participation
79.4%
Employment Rate
8.9%
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
23.92%
Born in St. Mary
85.65%
Native Born
14.35%
Foreign Born
14.35%
Non Citizen
0%
Naturalized
85.65% of St. Mary residents were born in the United States, with 23.92% having been born in Montana. 14.35% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Oceania.
Year | Population | Growth | Change |
|---|---|---|---|
| 2024 | 282 | 20 | 7.63% |
| 2023 | 262 | 20 | 8.26% |
| 2022 | 242 | -249 | -50.71% |
| 2021 | 491 | -88 | -15.2% |
| 2020 | 579 | 0 | 0% |