St. Marys is a city located in Warren County Iowa. St. Marys has a 2024 population of 113. St. Marys is currently declining at a rate of -0.88% annually and its population has decreased by -3.42% since the most recent census, which recorded a population of 117 in 2020.
The average household income in St. Marys is $98,094 with a poverty rate of 6.25%. The median age in St. Marys is 53.5 years: 53.6 years for males, and 53.5 years for females.
According to the most recent ACS, the racial composition of St. Marys was:
Race | Population | Percentage (of total) |
|---|---|---|
| White | 112 | 100% |
| Black or African American | 0 | 0% |
| Native American | 0 | 0% |
| Asian | 0 | 0% |
| Native Hawaiian or Pacific Islander | 0 | 0% |
| Other race | 0 | 0% |
| Two or more races | 0 | 0% |
White
Black or African American
Native American
Asian
Native Hawaiian or Pacific Islander
Other race
Two or more races
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 52 | 2.15 | 76.9 | 23.1 |
| Married | 30 | 2.6 | 100 | 0 |
| Non Family | 20 | 1.4 | 50 | 50 |
| Female | 2 | 3 | 0 | 100 |
| Male | 0 | 0 | 0 | 0 |
2.53
Average Family Size
2.15
Average Household Size
76.9%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Education Attained | Count | Percentage |
|---|---|---|
| 9th to 12th Grade | 3 | 3.16% |
| Associates Degree | 7 | 7.37% |
| Bachelors Degree | 14 | 14.74% |
| Graduate Degree | 8 | 8.42% |
| High School Graduate | 48 | 50.53% |
| Less Than 9th Grade | 0 | 0% |
| Some College | 15 | 15.79% |
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 | 95 | 92 | 22 |
The highest rate of high school graduation is among white people with a rate of 96.84%.
The highest rate of bachelors degrees is among white people with a rate of 23.16%.
All
Male
Female
Name | Average | Male | Female |
|---|---|---|---|
| Bachelors Degree | $55,625 | $0 | $35,625 |
| Graduate Degree | $0 | $0 | $0 |
| High School Graduate | $85,781 | $0 | $0 |
| Less Than 9th Grade | $0 | $0 | $0 |
| Overall | $70,000 | $0 | $70,625 |
| Some College | $83,750 | $95,750 | $66,250 |
$70,000
Average Earnings
$0
Average Male
$70,625
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
100% of St. Marys residents speak only English, while 0% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 0% of the population.
rate
Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 112 | 7 | 6.25% |
6.25%
Overall Poverty Rate
0%
Male Poverty Rate
14.29%
Female Poverty Rate
The race most likely to be in poverty in St. Marys is White, with 6.25% below the poverty level.
The race least likely to be in poverty in St. Marys is White, with 6.25% 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 15.38%, and for those that did not work, the poverty rate was 7.69%.
rate
Rate | Poverty |
|---|---|
| High School | 6.25% |
| Less Than 9th Grade | 0% |
| Some College | 0% |
| Bachelors or Greater | 0% |
rate
Rate | Poverty |
|---|---|
| Male Employed | 0% |
| Male Unemployed | 0% |
| Female Employed | 8.7% |
| Female Unemployed | 0% |
Households
Families
MarriedFamilies
NonFamilies
Name | Median | Mean |
|---|---|---|
| Families | - | $118,094 |
| Households | $78,750 | $98,094 |
| Married Families | $106,250 | $-999,999,999 |
| Non Families | $68,750 | $59,950 |
mean
median
Married
Widowed
Divorced
Separated
NeverMarried
62.5%
Overall Marriage Rate
61.7%
Male Marriage Rate
63.6%
Female Marriage Rate
male
female
The age group where males are most likely to be married is 45-54, 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
10
Male Veterans
2
Female Veterans
War | Veterans |
|---|---|
| Vietnam | 5 |
| Second Gulf War | 2 |
| First Gulf War | 1 |
| Korea | 0 |
| World War II | 0 |
count
Age Group | Veterans |
|---|---|
| 65 to 74 | 8 |
| 18 to 34 | 2 |
| 55 to 64 | 2 |
| 35 to 54 | 0 |
| 75+ | 0 |
count
Name | Veterans | % of Total |
|---|---|---|
| White | 12 | 11.76% |
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
0%
Veteran Poverty Rate
8.33%
Veteran Disability Rate
LaborForceParticipation
62.5%
Labor Force Participation
62.5%
Employment Rate
0%
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
75.89%
Born in St. Marys
98.21%
Native Born
1.79%
Foreign Born
0%
Non Citizen
1.79%
Naturalized
98.21% of St. Marys residents were born in the United States, with 75.89% having been born in Iowa. 0% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.
Year | Population | Growth | Change |
|---|---|---|---|
| 2029 | 108 | -1 | -0.92% |
| 2028 | 109 | -1 | -0.91% |
| 2027 | 110 | -1 | -0.9% |
| 2026 | 111 | -1 | -0.89% |
| 2025 | 112 | -1 | -0.88% |
| 2024 | 113 | -1 | -0.88% |
| 2023 | 114 | -1 | -0.87% |
| 2022 | 115 | -1 | -0.86% |
| 2021 | 116 | -1 | -0.85% |
| 2020 | 117 | -10 | -7.87% |
| 2019 | 127 | 2 | 1.6% |
| 2018 | 125 | 1 | 0.81% |
| 2017 | 124 | -1 | -0.8% |
| 2016 | 125 | -2 | -1.57% |
| 2015 | 127 | 1 | 0.79% |
| 2014 | 126 | -1 | -0.79% |
| 2013 | 127 | 0 | 0% |
| 2012 | 127 | 0 | 0% |
| 2011 | 127 | 0 | 0% |
| 2010 | 127 | 0 | 0% |