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CITY

St. Mary

Kentucky · 138 residents (2025 est.) · 0.778 sq mi
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The short version

St. Mary has notably lower household income than the US average, with a median household income of $47,500. Population has fallen 30% since 2023, a loss of 63 residents. Median home value is $157,100. At a median age of 34.6, residents skew younger than the country as a whole. Poverty is rare here, at 3.4% of residents. Households here earn about 25% less than the Kentucky median.

At a glance
Lower income
below the US median
US median: $82,259
Younger
median age 34.6
US median: 38.9
Less educated
26% hold a bachelor's degree
US average: 36%
More affordable
home values down 14%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

147
−30%since 2023
from 210 in 2023
2019 – 2025
189 / sq mi
−30%since 2023
from 270 / sq mi in 2023
US average: 281
34.6
+22%since 2023
from 28.3 in 2023
US average: 38.9

PEP 2025 EST:138 residents (Census Bureau Vintage 2025, released March 2026)

Population, 20192024
12516320224027820192024St. Mary
2024147
20192024
Section 02

Income & economy

$47,500
−24%inflation adjusted, since 2023
from $60,833 in 2023
US average: $82,259
2019 – 2024
$25,899
+4%since 2023
from $24,850 in 2023
US average: $44,673
Households earning $100K+
29.2%
−2.8 ptssince 2023
from 31.9% in 2023
US average: 53.3%
3.4%
−0.9 ptssince 2023
from 4.3% in 2023
US average: 12.5%
0.376
−5%since 2023
from 0.396 in 2023
US average: 0.476
Workforce by industry, 2024
Retail trade19.7%
US avg: 9.9%
Information13.6%
US avg: 10.8%
Wholesale trade7.6%
US avg: 6.9%
Transportation & warehousing7.6%
US avg: 2.2%
Agriculture, forestry, fishing3%
US avg: 1.6%
Construction3%
US avg: 1.2%
Finance & insurance3%
US avg: 5.9%
Professional, scientific, technical3%
US avg: 5.1%
Other services1.5%
US avg: 6.7%
Public administration1.5%
US avg: 4.8%
Manufacturing0%
US avg: 0.4%
Education & health services0%
US avg: 0.9%
Arts, entertainment, food0%
US avg: 1.9%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

$157,100
−14%inflation adjusted, since 2023
from $177,600 in 2023
US average: $376,019
2019 – 2024
100.0%
+16.7 ptssince 2023
from 83.3% in 2023
0.0% rent
15.8%
+10.5 ptssince 2023
from 5.3% in 2023
US average: 10.0%
29.2%
+9.2 ptssince 2023
from 20.0% in 2023
US average: 22.9%
3.3
+13%since 2023
from 2.9 in 2023
2019 – 2024
RELATED:See current rent listings in St. Mary on RentDataNow
Section 04

Race & ethnicity

2023
White, non-Hispanic93.3%(196)
Black1%(2)
Hispanic / Latino0%(0)
Asian0%(0)
Other5.7%(12)
Diversity Score15.7%(33)
2024
White, non-Hispanic87.1%(128)
Black2%(3)
Hispanic / Latino0%(0)
Asian0%(0)
Other10.9%(16)
Diversity Score28.7%(42)
29
+83%since 2023
from 16 in 2023
2019 – 2024
Section 05

Education

25.6%
+3.7 ptssince 2023
from 21.9% in 2023
US average: 35.6%
High school or higher
86.0%
−6.1 ptssince 2023
from 92.2% in 2023
US average: 89.6%
8.1%
+2.7 ptssince 2023
from 5.5% in 2023
US average: 14.0%
Section 06

Commute & transportation

14.9 min
−21%since 2023
from 19.0 min in 2023
US average: 26.5
89.1%
−4.5 ptssince 2023
from 93.5% in 2023
US average: 68.9%
4.7%
+1.5 ptssince 2023
from 3.2% in 2023
US average: 8.5%
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 3.2%
6.3%
+3.0 ptssince 2023
from 3.2% in 2023
US average: 15.0%
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 2.4%
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 0.4%
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 8.3%
Section 07

Work & employment

8.3%
+4.3 ptssince 2023
from 4.0% in 2023
US average: 5.2%
77.4%
+16.7 ptssince 2023
from 60.7% in 2023
US average: 63.5%
15.2%
−4.8 ptssince 2023
from 20.0% in 2023
US average: 13.1%
33.3%
+4.9 ptssince 2023
from 28.4% in 2023
US average: 42.5%
Section 08

People & community

42.2%
−8.8 ptssince 2023
from 51.0% in 2023
57.8%
+8.8 ptssince 2023
from 49.0% in 2023
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 14.1%
4.4%
+2.6 ptssince 2023
from 1.9% in 2023
US average: 6.2%
12.2%
−14.0 ptssince 2023
from 26.2% in 2023
US average: 13.3%
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 8.4%
97.9%
+6.2 ptssince 2023
from 91.7% in 2023
US average: 91.0%
99.3%
+0.3 ptssince 2023
from 99.0% in 2023
US average: 77.7%
0.7%
−0.3 ptssince 2023
from 1.0% in 2023
US average: 13.6%
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Frequently asked

How many people live in St. Mary, Kentucky?

St. Mary, Kentucky has about 147 residents according to the 2024 American Community Survey.

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

The typical household in St. Mary, Kentucky earns about $47,500 a year. Half of households make more than that, and half make less.

Is St. Mary, Kentucky expensive?

In St. Mary, Kentucky, the median home is worth about $157,100.

How educated are people in St. Mary, Kentucky?

About 25.6% of adults age 25 and over in St. Mary, Kentucky hold a bachelor's degree or higher.

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

About 3.4% of people in St. Mary, Kentucky live below the federal poverty line.

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

How we source and harmonize this data →

St. Mary, Kentucky: demographics, income & housing data · CensusEasy