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CITY

St. Marys

Kansas · 2,790 residents (2025 est.) · 1.178 sq mi
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The short version

St. Marys has roughly average household income, with a median household income of $76,771. Population has grown 27% since 2000. Median home value has more than doubled since 2000, reaching $206,900. At a median age of 26.6, residents skew younger than the country as a whole.

At a glance
Lower income
below the US median
US median: $82,259
Younger
median age 26.6
US median: 38.9
Less educated
25% hold a bachelor's degree
US average: 36%
Less affordable
home values up 43%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
2,788
+27%since 2000
from 2,198 in 2000
1990 – 2025
Population density
2,367 / sq mi
+27%since 2000
from 1,866 / sq mi in 2000
US average: 281
Median age
26.6
−15%since 2000
from 31.2 in 2000
US average: 38.9

PEP 2025 EST:2,790 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
2K2K2K3K3K1990201020202024St. Marys
20243K
1990201020202024
Section 02

Income & economy

Median household income
$76,771
+11%inflation adjusted, since 2000
from $38,083 in 2000
US average: $82,259
1990 – 2024
Per capita income
$28,921
+86%since 2000
from $15,536 in 2000
US average: $44,673
Households earning $100K+
50.9%
+30.6 ptssince 2009
from 20.3% in 2009
US average: 53.3%
Poverty rate
8.6%
−2.5 ptssince 2000
from 11.1% in 2000
US average: 12.5%
Income inequality (Gini)
0.344
−4%since 2010
from 0.358 in 2010
US average: 0.476
Workforce by industry, 2024
Retail trade29%
US avg: 9.9%
Wholesale trade9.7%
US avg: 6.9%
Other services5.4%
US avg: 6.7%
Public administration4.3%
US avg: 4.8%
Agriculture, forestry, fishing2.5%
US avg: 1.6%
Information2.5%
US avg: 10.8%
Manufacturing2%
US avg: 0.4%
Finance & insurance1.7%
US avg: 5.9%
Arts, entertainment, food1.5%
US avg: 1.9%
Transportation & warehousing1.3%
US avg: 2.2%
Professional, scientific, technical1.2%
US avg: 5.1%
Construction0.5%
US avg: 1.2%
Education & health services0.5%
US avg: 0.9%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$206,900
+43%inflation adjusted, since 2000
from $79,500 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$892
+11%inflation adjusted, since 2000
from $442 in 2000
US average: $1,442
Owner-occupied
64.3%
−10.7 ptssince 2000
from 75.0% in 2000
35.7% rent
Vacancy rate
6.2%
−1.0 ptssince 2009
from 7.2% in 2009
US average: 10.0%
Owner cost-burdened
11.9%
−8.3 ptssince 2009
from 20.2% in 2009
US average: 22.9%
Renter cost-burdened
24.1%
−5.1 ptssince 2009
from 29.2% in 2009
US average: 47.4%
Afford Score
2.7
+29%since 2000
from 2.1 in 2000
1990 – 2024
Gentrification Score
48
RELATED:See current rent listings in St. Marys on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic92.2%(2,027)
Black0.9%(20)
Hispanic / Latino4.1%(91)
Asian0.5%(10)
Other0%
Diversity Score13.4%(296)
2024
White, non-Hispanic79.2%(2,209)
Black0.5%(14)
Hispanic / Latino9.6%(267)
Asian2.4%(67)
Other8.3%(231)
Diversity Score44.4%(1,239)
Diversity Score
44
+231%since 2000
from 13 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
24.7%
+5.9 ptssince 2000
from 18.8% in 2000
US average: 35.6%
High school or higher
96.3%
+6.8 ptssince 2000
from 89.4% in 2000
US average: 89.6%
Graduate degree
4.7%
−0.7 ptssince 2000
from 5.4% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
15.8 min
−9%since 2000
from 17.4 min in 2000
US average: 26.5
Drive alone to work
72.2%
−4.0 ptssince 2009
from 76.2% in 2009
US average: 68.9%
Carpooled to work
11.3%
+2.8 ptssince 2009
from 8.5% in 2009
US average: 8.5%
Public transit
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 3.2%
Worked from home
5.7%
+0.6 ptssince 2009
from 5.1% in 2009
US average: 15.0%
Walked to work
10.0%
+6.3 ptssince 2009
from 3.7% in 2009
US average: 2.4%
Biked to work
0.0%
−1.2 ptssince 2009
from 1.2% in 2009
US average: 0.4%
No vehicle available
3.0%
−1.2 ptssince 2009
from 4.2% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
4.4%
−1.1 ptssince 2011
from 5.5% in 2011
US average: 5.2%
Labor force participation
66.4%
+4.7 ptssince 2011
from 61.8% in 2011
US average: 63.5%
Self-employed
15.8%
+3.3 ptssince 2009
from 12.5% in 2009
US average: 13.1%
Management & professional
24.6%
−33.6 ptssince 2009
from 58.2% in 2009
US average: 42.5%
Section 08

People & community

Male
52.7%
+4.7 ptssince 2009
from 48.0% in 2009
Female
47.3%
−4.7 ptssince 2009
from 52.0% in 2009
Foreign born
4.2%
+1.1 ptssince 2009
from 3.1% in 2009
US average: 14.1%
Veterans
8.5%
−38.8 ptssince 2009
from 47.2% in 2009
US average: 6.2%
With a disability
10.2%
+2.2 ptssince 2012
from 8.0% in 2012
US average: 13.3%
Uninsured
8.0%
−84.0 ptssince 2013
from 92.0% in 2013
US average: 8.4%
Broadband at home
93.7%
+9.7 ptssince 2017
from 84.0% in 2017
US average: 91.0%
English only at home
94.1%
−2.0 ptssince 2016
from 96.2% in 2016
US average: 77.7%
Spanish at home
2.2%
−0.2 ptssince 2016
from 2.4% in 2016
US average: 13.6%
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Compare St. Marys to nearby cities

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ST. MARYS VS
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ST. MARYS VS
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Home value$222,100+7%
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ST. MARYS VS
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Frequently asked

How many people live in St. Marys, Kansas?

St. Marys, Kansas has about 2,788 residents according to the 2024 American Community Survey.

What is the median household income in St. Marys, Kansas?

The typical household in St. Marys, Kansas earns about $76,771 a year. Half of households make more than that, and half make less.

Is St. Marys, Kansas expensive?

In St. Marys, Kansas, the median home is worth about $206,900, and the typical rent is about $892 a month.

How educated are people in St. Marys, Kansas?

About 24.7% of adults age 25 and over in St. Marys, Kansas hold a bachelor's degree or higher.

What is the poverty rate in St. Marys, Kansas?

About 8.6% of people in St. Marys, Kansas live below the federal poverty line.

Has St. Marys, Kansas grown since 1990?

Yes, St. Marys, Kansas has grown since 1990. The population has added about 1,022 residents, a change of about 58 percent over that period.

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

How we source and harmonize this data →

St. Marys, Kansas: demographics, income & housing data · CensusEasy