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CITY

St. Marys

Ohio · 8,398 residents (2025 est.) · 4.668 sq mi
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Part of the Wapakoneta micropolitan area
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The short version

St. Marys has roughly average household income, with a median household income of $79,516. Population has held roughly steady since 2000. 18% of adults hold a bachelor's degree or higher, below the national rate of 36%. Median home value has more than doubled since 2000, reaching $148,500.

At a glance
Average income
near the US median
US median: $82,259
Younger
median age 36.6
US median: 38.9
Less educated
18% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
8,301
Unchangedsince 2000
from 8,342 in 2000
1990 – 2025
Population density
1,778 / sq mi
Unchangedsince 2000
from 1,787 / sq mi in 2000
US average: 281
Median age
36.6
+5%since 2000
from 34.9 in 2000
US average: 38.9

PEP 2025 EST:8,398 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
8K8K8K8K8K1990201020202024St. Marys
20248K
1990201020202024
Section 02

Income & economy

Median household income
$79,516
+13%inflation adjusted, since 2000
from $38,673 in 2000
US average: $82,259
1990 – 2024
Per capita income
$35,322
+100%since 2000
from $17,682 in 2000
US average: $44,673
Households earning $100K+
51.8%
+32.3 ptssince 2009
from 19.4% in 2009
US average: 53.3%
Poverty rate
6.6%
−0.7 ptssince 2000
from 7.3% in 2000
US average: 12.5%
Income inequality (Gini)
0.358
−2%since 2010
from 0.364 in 2010
US average: 0.476
Workforce by industry, 2024
Retail trade49.9%
US avg: 9.9%
Information5.8%
US avg: 10.8%
Finance & insurance1.5%
US avg: 5.9%
Professional, scientific, technical1.5%
US avg: 5.1%
Transportation & warehousing1.2%
US avg: 2.2%
Agriculture, forestry, fishing1.1%
US avg: 1.6%
Construction1.1%
US avg: 1.2%
Wholesale trade1.1%
US avg: 6.9%
Other services0.7%
US avg: 6.7%
Public administration0.7%
US avg: 4.8%
Arts, entertainment, food0.2%
US avg: 1.9%
Manufacturing0%
US avg: 0.4%
Education & health services0%
US avg: 0.9%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$148,500
+5%inflation adjusted, since 2000
from $77,900 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$848
−3%inflation adjusted, since 2000
from $479 in 2000
US average: $1,442
Owner-occupied
79.0%
+8.4 ptssince 2000
from 70.6% in 2000
21.0% rent
Vacancy rate
8.2%
+3.0 ptssince 2009
from 5.3% in 2009
US average: 10.0%
Owner cost-burdened
11.2%
−13.2 ptssince 2009
from 24.4% in 2009
US average: 22.9%
Renter cost-burdened
25.0%
−10.1 ptssince 2009
from 35.1% in 2009
US average: 47.4%
Afford Score
1.9
−7%since 2000
from 2.0 in 2000
1990 – 2024
Gentrification Score
53
RELATED:See current rent listings in St. Marys on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic97.2%(8,106)
Black0.3%(28)
Hispanic / Latino0.5%(38)
Asian1%(82)
Other0%
Diversity Score4.4%(369)
2024
White, non-Hispanic90.9%(7,542)
Black1.7%(142)
Hispanic / Latino5.9%(490)
Asian0.1%(11)
Other1.4%(116)
Diversity Score21.3%(1,770)
Diversity Score
21
+382%since 2000
from 4 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
17.5%
+5.7 ptssince 2000
from 11.8% in 2000
US average: 35.6%
High school or higher
96.1%
+14.0 ptssince 2000
from 82.1% in 2000
US average: 89.6%
Graduate degree
4.9%
+0.8 ptssince 2000
from 4.1% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
15.7 min
+26%since 2000
from 12.4 min in 2000
US average: 26.5
Drive alone to work
83.4%
−6.4 ptssince 2009
from 89.8% in 2009
US average: 68.9%
Carpooled to work
9.8%
+5.9 ptssince 2009
from 3.9% in 2009
US average: 8.5%
Public transit
0.0%
−0.2 ptssince 2009
from 0.2% in 2009
US average: 3.2%
Worked from home
2.1%
+0.3 ptssince 2009
from 1.8% in 2009
US average: 15.0%
Walked to work
1.1%
−1.7 ptssince 2009
from 2.8% in 2009
US average: 2.4%
Biked to work
0.1%
−0.1 ptssince 2009
from 0.2% in 2009
US average: 0.4%
No vehicle available
3.8%
+1.5 ptssince 2009
from 2.4% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
1.8%
−7.9 ptssince 2011
from 9.7% in 2011
US average: 5.2%
Labor force participation
70.1%
+1.3 ptssince 2011
from 68.8% in 2011
US average: 63.5%
Self-employed
8.9%
+2.2 ptssince 2009
from 6.8% in 2009
US average: 13.1%
Management & professional
29.2%
−28.4 ptssince 2009
from 57.6% in 2009
US average: 42.5%
Section 08

People & community

Male
50.1%
−0.1 ptssince 2009
from 50.2% in 2009
Female
49.9%
+0.1 ptssince 2009
from 49.8% in 2009
Foreign born
0.1%
−1.6 ptssince 2009
from 1.7% in 2009
US average: 14.1%
Veterans
8.9%
−39.0 ptssince 2009
from 47.9% in 2009
US average: 6.2%
With a disability
12.4%
+1.5 ptssince 2012
from 10.9% in 2012
US average: 13.3%
Uninsured
5.0%
−86.2 ptssince 2013
from 91.2% in 2013
US average: 8.4%
Broadband at home
91.2%
+17.2 ptssince 2017
from 74.0% in 2017
US average: 91.0%
English only at home
99.7%
+1.9 ptssince 2016
from 97.8% in 2016
US average: 77.7%
Spanish at home
0.2%
Unchangedsince 2016
from 0.2% in 2016
US average: 13.6%
Drill deeper

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Head to head

Compare St. Marys to nearby cities

ST. MARYS VS
Celina
Income$62,849−21%
Home value$164,100+11%
Population10,936+30%
SEE FULL COMPARISON →
ST. MARYS VS
Wapakoneta
Income$65,570−18%
Home value$158,400+7%
Population9,711+16%
SEE FULL COMPARISON →
ST. MARYS VS
Lima
Income$46,240−42%
Home value$107,200−28%
Population34,695+313%
SEE FULL COMPARISON →
ST. MARYS VS
Sidney
Income$60,668−24%
Home value$169,900+14%
Population20,124+140%
SEE FULL COMPARISON →
Frequently asked

How many people live in St. Marys, Ohio?

St. Marys, Ohio has about 8,301 residents according to the 2024 American Community Survey.

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

The typical household in St. Marys, Ohio earns about $79,516 a year. Half of households make more than that, and half make less.

Is St. Marys, Ohio expensive?

In St. Marys, Ohio, the median home is worth about $148,500, and the typical rent is about $848 a month.

How educated are people in St. Marys, Ohio?

About 17.5% of adults age 25 and over in St. Marys, Ohio hold a bachelor's degree or higher.

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

About 6.6% of people in St. Marys, Ohio live below the federal poverty line.

Has St. Marys, Ohio grown since 1990?

Yes, St. Marys, Ohio has shrunk since 1990. The population has lost about 140 residents, a change of about -2 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 →