CITY · 1990 CENSUS

St. Marys

Pennsylvania · 5,511 residents · 99.3 sq mi

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St. Marys is home to 5,511 people in Pennsylvania. The population has fallen 62% since 2000. The median age is 37.2, about 4 years above the US median. The average commute runs 11 minutes. The typical home is worth $52,700. Households here earn about 25% less than in Pennsylvania as a whole.

At a glance

Lower income

below the US median

US median: $30,130

Older

median age 37.2

US median: 33.0

Less educated

14% hold a bachelor's degree

US average: 20%

More affordable

home values down 21%, inflation adjusted

US median home: $93,722

Section 01

Population & growth

Total population

5,511

−62%vs 2000

vs 14,502 in 2000

1990 – 2025

Median age

37.2

−5%vs 2000

vs 39.4 in 2000

US average: 33.0

Land area

99.3 sq mi

Population, 1990 – 2024

202413K

Age distribution, 1990

Under 56.5%(356)

US avg: 7.3%

5 to 97%(384)

US avg: 7.3%

10 to 145.5%(305)

US avg: 6.9%

15 to 196.1%(334)

US avg: 7.1%

20 to 247.2%(398)

US avg: 7.5%

25 to 3414.1%(778)

US avg: 17.5%

35 to 4414.2%(782)

US avg: 15.1%

45 to 547.4%(409)

US avg: 10.2%

55 to 6410.3%(565)

US avg: 8.5%

65 to 7412.2%(674)

US avg: 7.3%

75 to 848.3%(457)

US avg: 4%

85 and over1.3%(69)

US avg: 1.2%

BAR + DOT: THIS PLACE · TICK: US AVERAGE

Section 02

Income & economy

Median household income

$21,871

−31%inflation adjusted, since 2000

vs $41,593 in 2000

US average: $30,130

1990 – 2024

Per capita income

$11,756

−41%vs 2000

vs $19,885 in 2000

US average: $14,340

Poverty rate

10.9%

+6.1 ptsvs 2000

vs 4.8% in 2000

US average: 13.2%

Section 03

Housing

Median home value

$52,700

−21%inflation adjusted, since 2000

vs $87,900 in 2000

US average: $93,722

1990 – 2024

Median gross rent

$305

−11%inflation adjusted, since 2000

vs $454 in 2000

US average: $450

Owner-occupied

66.1%

−11.3 ptsvs 2000

vs 77.4% in 2000

33.9% rent

Section 04

Race & ethnicity

2000

White, non-Hispanic98.6%(14,299)

Black0.2%(30)

Hispanic / Latino0.3%(44)

Asian0.4%(60)

Other0%

1990

White, non-Hispanic99.6%(5,489)

Black0.2%(12)

Hispanic / Latino0.3%(14)

Asian0.2%(10)

Other0%(0)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

Hispanic origin

Puerto Rican0.5%(66)

Mexican0.5%(57)

Cuban0.4%(49)

Asian origin

Filipino0.1%(12)

Chinese0.1%(8)

Ancestry

German46.3%(5,802)

Italian16.8%(2,104)

Irish14.6%(1,824)

English5.9%(736)

Polish5.6%(703)

American4.5%(559)

French2%(250)

Swedish1.9%(234)

Dutch1.3%(168)

Austrian0.9%(113)

French Canadian0.7%(86)

Subsaharan African0.6%(76)

+ 18 more ancestry groups with data

Belgian0.5%(58)

Croatian0.4%(45)

Scottish0.3%(39)

Greek0.3%(33)

Slovak0.2%(26)

Hungarian0.2%(25)

Russian0.2%(24)

Czech0.2%(21)

Ghanaian0.2%(19)

Welsh0.1%(18)

Macedonian0.1%(17)

Scotch-Irish0.1%(16)

Slovene0.1%(16)

Portuguese0.1%(15)

Lithuanian0.1%(14)

Australian0.1%(11)

Canadian0.1%(11)

Swiss0%(5)

RANKED:Largest German population · Largest Italian population · Largest Irish population · Largest English population · Largest Polish population

Section 05

Education

Bachelor's degree or higher

13.7%

−1.7 ptsvs 2000

vs 15.5% in 2000

US average: 20.3%

High school or higher

75.4%

−9.1 ptsvs 2000

vs 84.4% in 2000

US average: 75.2%

Graduate degree

4.2%

−0.8 ptsvs 2000

vs 4.9% in 2000

US average: 7.1%

Section 06

Commute & transportation

Average commute

11.0 min

+8%vs 2000

vs 10.2 min in 2000

US average: 21.9

Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status (2024)

Men 15+

Never married31.6%(1,704)

Married53.9%(2,905)

Widowed4.5%(240)

Divorced10.1%(544)

Women 15+

Never married21.4%(1,154)

Married52.3%(2,812)

Widowed11.9%(641)

Divorced14.4%(774)

SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024

Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

Uninsured

1.3%

−4.8 ptssince 2013

from 6.1% in 2013

US average: 8.4%

Employer-based

60.2%

+1.6 ptssince 2020

from 58.6% in 2020

US average: 54.8%

Direct-purchase

18.5%

−1.2 ptssince 2020

from 19.7% in 2020

US average: 13.8%

Medicare

29.8%

+1.9 ptssince 2020

from 27.9% in 2020

US average: 18.4%

Medicaid

22.9%

+1.5 ptssince 2020

from 21.4% in 2020

US average: 20.9%

VA health care

3.8%

+0.2 ptssince 2020

from 3.6% in 2020

US average: 2.2%

Any private

75.6%

−0.4 ptssince 2020

from 76.0% in 2020

US average: 67.1%

Any public

47.2%

+3.2 ptssince 2020

from 44.0% in 2020

US average: 36.7%

Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.

Section 09 · Service history

Veterans

Veterans by period of service, 2024

Gulf War (2001 or later)10.3%(63)

US avg: 26.4%

Gulf War (1990s)10.5%(64)

US avg: 24.3%

Vietnam era44.4%(271)

US avg: 33.1%

Korean War3.8%(23)

US avg: 4.5%

World War II4.6%(28)

US avg: 1%

Share of the 611 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.

BAR + DOT: THIS PLACE · TICK: US AVERAGE

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