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CITY · 2000 CENSUS

St. Marys

Iowa · 134 residents · 0.141 sq mi
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The short version

St. Marys has roughly average household income, with a median household income of $38,750. Population has grown 34% since 1990. Median home value has more than doubled since 1990, reaching $86,300. Poverty is rare here, at 0.0% of residents.

At a glance
Lower income
below the US median
US median: $42,589
Mid-age
median age 36.0
US median: 35.2
Less educated
17% hold a bachelor's degree
US average: 24%
Less affordable
home values up 46%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

134
+34%since 1990
from 100 in 1990
1990 – 2025
950 / sq mi
+34%since 1990
from 709 / sq mi in 1990
US average: 242
36.0
+37%since 1990
from 26.3 in 1990
US average: 35.2
Population, 19902024
821241672102521990201020202024St. Marys
202496
1990201020202024
Section 02

Income & economy

$38,750
+22%inflation adjusted, since 1990
from $24,063 in 1990
US average: $42,589
1990 – 2024
$16,747
+66%since 1990
from $10,085 in 1990
US average: $21,522
0.0%
−2.0 ptssince 1990
from 2.0% in 1990
US average: 12.4%
Section 03

Housing

$86,300
+46%inflation adjusted, since 1990
from $45,000 in 1990
US average: $120,530
1990 – 2024
$675
+37%inflation adjusted, since 1990
from $375 in 1990
US average: $602
85.7%
−2.1 ptssince 1990
from 87.8% in 1990
14.3% rent
2.2
+19%since 1990
from 1.9 in 1990
1990 – 2024
RELATED:See current rent listings in St. Marys on RentDataNow
Section 04

Race & ethnicity

1990
White, non-Hispanic100%(100)
Black0%(0)
Hispanic / Latino0%(0)
Asian0%(0)
Diversity Score0%(0)
2000
White, non-Hispanic98.5%(132)
Black0%(0)
Hispanic / Latino1.5%(2)
Asian0%(0)
Diversity Score3.7%(5)
4
from 0 in 1990
1990 – 2024
Section 05

Education

17.3%
+9.9 ptssince 1990
from 7.4% in 1990
US average: 24.4%
High school or higher
100.0%
+7.4 ptssince 1990
from 92.6% in 1990
US average: 80.3%
4.0%
+0.3 ptssince 1990
from 3.7% in 1990
US average: 8.8%
Section 06

Commute & transportation

22.2 min
−33%since 1990
from 33.4 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

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Frequently asked

How many people live in St. Marys, Iowa?

St. Marys, Iowa has about 134 residents according to the 2000 Census.

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

The typical household in St. Marys, Iowa earns about $38,750 a year. Half of households make more than that, and half make less.

Is St. Marys, Iowa expensive?

In St. Marys, Iowa, the median home is worth about $86,300, and the typical rent is about $675 a month.

How educated are people in St. Marys, Iowa?

About 17.3% of adults age 25 and over in St. Marys, Iowa hold a bachelor's degree or higher.

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

About 0.0% of people in St. Marys, Iowa live below the federal poverty line.

Has St. Marys, Iowa grown since 1990?

Yes, St. Marys, Iowa has grown since 1990. The population has added about 34 residents, a change of about 34 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 →