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CITY · 2020 ACS

St. Mary

Missouri · 309 residents · 0.599 sq mi
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The short version

St. Mary has lower-than-average household income, with a median household income of $56,875. Population has fallen 18% since 2000, a loss of 68 residents. 10% of adults hold a bachelor's degree or higher, below the national rate of 33%. Median home value has more than doubled since 2000, reaching $77,100.

At a glance
Lower income
below the US median
US median: $66,278
Older
median age 43.2
US median: 38.8
Less educated
10% hold a bachelor's degree
US average: 33%
Less affordable
home values up 33%, inflation adjusted
US median home: $265,253
Section 01

Population & growth

Total population
309
−18%since 2000
from 377 in 2000
1990 – 2025
Population density
516 / sq mi
−18%since 2000
from 629 / sq mi in 2000
US average: 280
Median age
43.2
+11%since 2000
from 38.9 in 2000
US average: 38.8
Population, 1990 – 2024
1342603855106361990201020202024St. Mary
2024285
1990201020202024
Section 02

Income & economy

Median household income
$56,875
+40%inflation adjusted, since 2000
from $27,000 in 2000
US average: $66,278
1990 – 2024
Per capita income
$19,066
+13%since 2000
from $16,825 in 2000
US average: $35,364
Households earning $100K+
25.3%
+13.5 ptssince 2009
from 11.8% in 2009
US average: 43.9%
Poverty rate
12.6%
−0.6 ptssince 2000
from 13.2% in 2000
US average: 12.8%
Workforce by industry, 2020
Retail trade20.8%
US avg: 10%
Information10.4%
US avg: 11.1%
Wholesale trade7.5%
US avg: 6.7%
Agriculture, forestry, fishing3.8%
US avg: 1.7%
Manufacturing3.8%
US avg: 0.5%
Finance & insurance3.8%
US avg: 5.5%
Professional, scientific, technical3.8%
US avg: 4.7%
Other services0.9%
US avg: 6.6%
Construction0%
US avg: 1.2%
Transportation & warehousing0%
US avg: 2.5%
Education & health services0%
US avg: 0.8%
Arts, entertainment, food0%
US avg: 2%
Public administration0%
US avg: 4.7%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$77,100
+33%inflation adjusted, since 2000
from $38,600 in 2000
US average: $265,253
1990 – 2024
Median gross rent
$608
+69%inflation adjusted, since 2000
from $239 in 2000
US average: $1,124
Owner-occupied
75.8%
−7.4 ptssince 2000
from 83.2% in 2000
24.2% rent
Afford Score
1.4
−5%since 2000
from 1.4 in 2000
1990 – 2024
RELATED:See current rent listings in St. Mary on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic92.3%(348)
Black3.2%(12)
Hispanic / Latino2.1%(8)
Asian0%(0)
Other0%
Diversity Score13%(49)
2020
White, non-Hispanic87.4%(270)
Black1.9%(6)
Hispanic / Latino2.9%(9)
Asian0%(0)
Other0.4%(1)
Diversity Score13.6%(42)
Diversity Score
14
+4%since 2000
from 13 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
10.2%
+5.3 ptssince 2000
from 4.9% in 2000
US average: 32.9%
High school or higher
79.0%
+11.5 ptssince 2000
from 67.5% in 2000
US average: 88.5%
Graduate degree
6.3%
+4.1 ptssince 2000
from 2.1% in 2000
US average: 12.7%
Section 06

Commute & transportation

Average commute
30.0 min
+67%since 2000
from 18.0 min in 2000
US average: 26.9
Drive alone to work
92.2%
+12.7 ptssince 2009
from 79.4% in 2009
US average: 75.1%
No vehicle available
5.7%
+1.9 ptssince 2009
from 3.8% in 2009
US average: 8.4%
Section 07

Work & employment

Unemployment rate
3.6%
−8.2 ptssince 2011
from 11.9% in 2011
US average: 5.4%
Labor force participation
55.0%
−8.3 ptssince 2011
from 63.3% in 2011
US average: 63.4%
Management & professional
22.6%
−26.1 ptssince 2009
from 48.8% in 2009
US average: 39.3%
Section 08

People & community

Male
43.7%
−10.2 ptssince 2009
from 53.9% in 2009
Female
56.3%
+10.2 ptssince 2009
from 46.1% in 2009
Foreign born
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 13.5%
Uninsured
17.6%
−69.1 ptssince 2013
from 86.7% in 2013
US average: 8.8%
Drill deeper

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Head to head

Compare St. Mary to nearby cities

ST. MARY VS
Perryville
Income$51,897−9%
Home value$179,700+133%
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ST. MARY VS
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Income$53,729−6%
Home value$196,500+155%
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ST. MARY VS
Park Hills
Income$52,563−8%
Home value$131,300+70%
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ST. MARY VS
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Income$98,711+74%
Home value$249,500+224%
Population11,132+3468%
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Frequently asked

How many people live in St. Mary, Missouri?

St. Mary, Missouri has about 309 residents according to the 2020 American Community Survey.

What is the median household income in St. Mary, Missouri?

The typical household in St. Mary, Missouri earns about $56,875 a year. Half of households make more than that, and half make less.

Is St. Mary, Missouri expensive?

In St. Mary, Missouri, the median home is worth about $77,100, and the typical rent is about $608 a month.

How educated are people in St. Mary, Missouri?

About 10.2% of adults age 25 and over in St. Mary, Missouri hold a bachelor's degree or higher.

What is the poverty rate in St. Mary, Missouri?

About 12.6% of people in St. Mary, Missouri live below the federal poverty line.

Has St. Mary, Missouri grown since 1990?

Yes, St. Mary, Missouri has shrunk since 1990. The population has lost about 139 residents, a change of about -31 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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