St. Marys, Pennsylvania Population 2024

12,326

St. Marys is a city located in Elk County Pennsylvania. St. Marys has a 2024 population of 12,326. St. Marys is currently declining at a rate of -0.78% annually and its population has decreased by -3.05% since the most recent census, which recorded a population of 12,714 in 2020.

The average household income in St. Marys is $76,846 with a poverty rate of 8.99%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in St. Marys is 50.5 years, 50.5 years for males, and 50.5 years for females.

St. Marys Demographics

According to the most recent ACS, the racial composition of St. Marys was:

  • White: 94.65%
  • Two or more races: 3.33%
  • Black or African American: 1.33%
  • Asian: 0.43%
  • Other race: 0.19%
  • Native Hawaiian or Pacific Islander: 0.07%
  • Native American: 0%
Land Area (mi²)
99.3 sq mi
Density (mi²)
124.10/sq mi
Growth Since 2020
-3.05% (-388)
The current population of St. Marys, Pennsylvania is 12,326 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 12,714.

St. Marys, Pennsylvania Population 2024

Population by Race

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Race
Population
Percentage (of total)
White12,01294.65%
Two or more races4233.33%
Black or African American1691.33%
Asian540.43%
Other race240.19%
Native Hawaiian or Pacific Islander90.07%
Native American00%

White

Two or more races

Black or African American

Asian

Other race

Native Hawaiian or Pacific Islander

Native American

St. Marys Population by Race

St. Marys Population Pyramid 2024

St. Marys Median Age

50.5

Total

50.5

Male

50.5

Female

St. Marys Adults

There are 10,491 adults, (3,288 of whom are seniors) in St. Marys.

St. Marys Age Dependency

76.2

Age Dependency Ratio

45.6

Old Age Dependency Ratio

30.5

Child Dependency Ratio

St. Marys Sex Ratio

Female6,57551.81%
Male6,11648.19%

St. Marys Population by Age

St. Marys Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All5,7262.1676.123.9
Married2,5352.7894.65.4
Non Family2,4571.1757.142.9
Female4963.2271.628.4
Male2383.6384.515.5

2.84

Average Family Size

2.16

Average Household Size

76.1%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

St. Marys Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

St. Marys Educational Attainment by Sex (over 25)

St. Marys Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among hispanic people with a rate of 95.38%.

The highest rate of bachelors degrees is among 2+ races people with a rate of 21.71%.

St. Marys Educational Attainment by Race

All

Male

Female

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$41,467

Average Earnings

$50,524

Average Male

$35,639

Average Female

St. Marys Earnings by Educational Attainment

St. Marys Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

St. Marys Language

98.03% of St. Marys residents speak only English, while 1.97% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 1.28% of the population.

St. Marys Language

St. Marys Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White11,6299047.77%
Black14714699.32%
Asian543870.37%
Other1818100%
Hispanic1661810.84%
Multiple42371.65%

8.99%

Overall Poverty Rate

7.98%

Male Poverty Rate

9.92%

Female Poverty Rate

Poverty in St. Marys

The race most likely to be in poverty in St. Marys is Other, with 100% below the poverty level.

The race least likely to be in poverty in St. Marys is Multiple, with 1.65% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.56%. Among those working part-time, it was 10.62%, and for those that did not work, the poverty rate was 13.13%.

St. Marys Poverty

rate

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Rate
Poverty
Less Than 9th Grade18.65%
High School8.86%
Some College4.48%
Bachelors or Greater1.64%

St. Marys Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed55.28%
Male Unemployed11.67%
Female Employed7.4%
Male Employed2.14%

St. Marys Poverty Rate by Employment Status and Sex

St. Marys Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

St. Marys Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

49.2%

Overall Marriage Rate

49.8%

Male Marriage Rate

48.7%

Female Marriage Rate

St. Marys Married by Age and Sex

male

female

St. Marys Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 55-64.

St. Marys Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

St. Marys Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

722

Number of Veterans

722

Male Veterans

0

Female Veterans

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St. Marys Veterans by War

count

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St. Marys Veterans by Age

count

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St. Marys Veterans by Race

St. Marys Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

7.65%

Veteran Poverty Rate

24.46%

Veteran Disability Rate

St. Marys Veterans by Education

LaborForceParticipation

63.1%

Labor Force Participation

57.3%

Employment Rate

9.1%

Unemployment Rate

St. Marys Employment by Age

LaborForceParticipation

St. Marys Employment by Race

LaborForceParticipation

St. Marys 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

90.84%

Born in St. Marys

98.73%

Native Born

1.27%

Foreign Born

0.46%

Non Citizen

0.81%

Naturalized

Place of Birth

98.73% of St. Marys residents were born in the United States, with 90.84% having been born in Pennsylvania. 0.46% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

St. Marys Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202911,841-97-0.81%
202811,938-97-0.81%
202712,035-97-0.8%
202612,132-97-0.79%
202512,229-97-0.79%
202412,326-97-0.78%
202312,423-97-0.77%
202212,520-123-0.97%
202112,643-71-0.56%
202012,7144453.63%
201912,269-79-0.64%
201812,348-69-0.56%
201712,417-94-0.75%
201612,511-145-1.15%
201512,656-128-1%
201412,784-102-0.79%
201312,886-57-0.44%
201212,943-74-0.57%
201113,017-19-0.15%
201013,03600%
200014,5028,991163.15%
19905,511-906-14.12%
19806,417-1,053-14.1%
19707,470-595-7.38%
19608,0652192.79%
19507,8461932.52%
19407,6532202.96%
19307,4334666.69%
19206,9676219.79%
19106,3462,05147.75%
19004,295-7,546-63.73%
showing: 31 rows

St. Marys Population by Year