St. Mary's, Colorado Population 2024

150

St. Mary's is a city located in Clear Creek County and Gilpin County Colorado. St. Mary's has a 2024 population of 150. St. Mary's is currently declining at a rate of -20.63% annually and its population has decreased by -63.94% since the most recent census, which recorded a population of 416 in 2020.

The average household income in St. Mary's is $73,905 with a poverty rate of 0%. The median age in St. Mary's is 34 years: 33.4 years for males, and 59 years for females.

St. Mary's Demographics

According to the most recent ACS, the racial composition of St. Mary's was:

  • White: 100%
  • Black or African American: 0%
  • Native American: 0%
  • Asian: 0%
  • Native Hawaiian or Pacific Islander: 0%
  • Other race: 0%
  • Two or more races: 0%
Land Area (mi²)
1.4 sq mi
Density (mi²)
104.30/sq mi
Growth Since 2020
-63.94% (-266)
The current population of St. Mary's, Colorado is 150 based on our projections of the latest US Census estimates (released May 2024). The last official US Census in 2020 recorded the population at 416.

Population by Race

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Race
Population
Percentage (of total)
White228100%
Black or African American00%
Native American00%
Asian00%
Native Hawaiian or Pacific Islander00%
Other race00%
Two or more races00%

White

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Two or more races

St. Mary's Population by Race

St. Mary's Population Pyramid 2024

St. Mary's Median Age

34

Total

33.4

Male

59

Female

St. Mary's Adults

There are 175 adults, (13 of whom are seniors) in St. Mary's.

St. Mary's Age Dependency

40.7

Age Dependency Ratio

8

Old Age Dependency Ratio

32.7

Child Dependency Ratio

St. Mary's Sex Ratio

Female7834.21%
Male15065.79%

St. Mary's Population by Age

St. Mary's Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All1032.211000
Female412.21000
Non Family3301000
Married293.621000
Male0000

2.79

Average Family Size

2.21

Average Household Size

100.0%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

St. Mary's Households and Families

Male

Female

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Education Attained
Count
Percentage
9th to 12th Grade00%
Associates Degree9353.14%
Bachelors Degree2715.43%
Graduate Degree63.43%
High School Graduate4928%
Less Than 9th Grade00%
Some College00%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

St. Mary's Educational Attainment by Sex (over 25)

St. Mary's Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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Race
Total
High School
Bachelors
White17517533

The highest rate of high school graduation is among white people with a rate of 100%.

The highest rate of bachelors degrees is among white people with a rate of 18.86%.

St. Mary's Educational Attainment by Race

All

Male

Female

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Name
Average
Male
Female
Bachelors Degree$0$0$0
Graduate Degree$0$0$0
High School Graduate$0$0$0
Less Than 9th Grade$0$0$0
Overall$43,036$44,311$24,878
Some College$28,098$0$0

$43,036

Average Earnings

$44,311

Average Male

$24,878

Average Female

St. Mary's Earnings by Educational Attainment

St. Mary's Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

St. Mary's Language

100% of St. Mary's 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.

St. Mary's Language

rate

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Rate
Poverty
Less Than 9th Grade0%
High School0%
Some College0%
Bachelors or Greater0%

St. Mary's Poverty Rate by Education

rate

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Rate
Poverty
Male Employed0%
Male Unemployed0%
Female Employed0%
Female Unemployed0%

St. Mary's Poverty Rate by Employment Status and Sex

St. Mary's Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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Name
Median
Mean
Families-$-999,999,999
Households$67,348$73,905
Married Families-$-999,999,999
Non Families-$59,715

mean

median

Income by Household Type

St. Mary's Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

37.1%

Overall Marriage Rate

43.3%

Male Marriage Rate

29.5%

Female Marriage Rate

St. Mary's Married by Age and Sex

male

female

St. Mary's Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 35-44.

St. Mary's Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

St. Mary's Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

0

Number of Veterans

0

Male Veterans

0

Female Veterans

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War
Veterans
Second Gulf War0
First Gulf War0
Vietnam0
Korea0
World War II0

St. Mary's Veterans by War

count

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Age Group
Veterans
18 to 340
35 to 540
55 to 640
65 to 740
75+0

St. Mary's Veterans by Age

count

St. Mary's Veterans by Race

St. Mary's Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

0%

Veteran Poverty Rate

0%

Veteran Disability Rate

St. Mary's Veterans by Education

LaborForceParticipation

92.6%

Labor Force Participation

64.6%

Employment Rate

30.2%

Unemployment Rate

St. Mary's Employment by Age

LaborForceParticipation

St. Mary's Employment by Race

LaborForceParticipation

St. Mary's Employment by Education

Origin of Non-Citizens

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.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

44.74%

Born in St. Mary's

100%

Native Born

0%

Foreign Born

0%

Non Citizen

0%

Naturalized

Place of Birth

100% of St. Mary's residents were born in the United States, with 44.74% having been born in Colorado. 0% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

St. Mary's Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
2024150-39-20.63%
2023189-39-17.11%
2022228-39-14.61%
2021267-149-35.82%
2020416-204-32.9%
201962010420.16%
201851613936.87%
20173774814.59%
20163293813.06%
2015291178157.52%
2014113-18-13.74%
201313175.65%
2012124-26-17.33%
2011150-133-47%
201028300%

St. Mary's Population by Year