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CITY · 2000 CENSUS

Mason

Illinois · 396 residents · 1.287 sq mi
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The short version

Mason has roughly average household income, with a median household income of $40,441. Population has held roughly steady since 1990. 4% of adults hold a bachelor's degree or higher, below the national rate of 24%. Median home value has risen by half since 1990, reaching $38,100. Poverty is rare here, at 6.1% of residents.

At a glance
Lower income
below the US median
US median: $42,589
Mid-age
median age 35.3
US median: 35.2
Less educated
4% hold a bachelor's degree
US average: 24%
Stable housing
home values roughly flat, inflation adjusted
US median home: $120,530
Section 01

Population & growth

396
+4%since 1990
from 380 in 1990
1990 – 2025
308 / sq mi
+4%since 1990
from 295 / sq mi in 1990
US average: 242
35.3
+14%since 1990
from 30.9 in 1990
US average: 35.2
Population, 19902024
2373003634254881990201020202024Mason
2024467
1990201020202024
Section 02

Income & economy

$40,441
+40%inflation adjusted, since 1990
from $21,875 in 1990
US average: $42,589
1990 – 2024
$13,392
+55%since 1990
from $8,615 in 1990
US average: $21,522
6.1%
−9.0 ptssince 1990
from 15.1% in 1990
US average: 12.4%
Section 03

Housing

$38,100
+15%inflation adjusted, since 1990
from $25,200 in 1990
US average: $120,530
1990 – 2024
$325
−22%inflation adjusted, since 1990
from $317 in 1990
US average: $602
88.4%
+4.4 ptssince 1990
from 84.1% in 1990
11.6% rent
0.9
−18%since 1990
from 1.2 in 1990
1990 – 2024
RELATED:See current rent listings in Mason on RentDataNow
Section 04

Race & ethnicity

1990
White, non-Hispanic100%(380)
Black0%(0)
Hispanic / Latino0.3%(1)
Asian0%(0)
Diversity Score0.7%(2)
2000
White, non-Hispanic97%(384)
Black0%(0)
Hispanic / Latino2.3%(9)
Asian0%(0)
Diversity Score5.6%(22)
6
+755%since 1990
from 1 in 1990
1990 – 2024
Section 05

Education

4.5%
+3.6 ptssince 1990
from 0.9% in 1990
US average: 24.4%
High school or higher
70.9%
+19.1 ptssince 1990
from 51.8% in 1990
US average: 80.3%
0.7%
+0.7 ptssince 1990
from 0.0% in 1990
US average: 8.8%
Section 06

Commute & transportation

13.0 min
−43%since 1990
from 22.6 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 Mason, Illinois?

Mason, Illinois has about 396 residents according to the 2000 Census.

What is the median household income in Mason, Illinois?

The typical household in Mason, Illinois earns about $40,441 a year. Half of households make more than that, and half make less.

Is Mason, Illinois expensive?

In Mason, Illinois, the median home is worth about $38,100, and the typical rent is about $325 a month.

How educated are people in Mason, Illinois?

About 4.5% of adults age 25 and over in Mason, Illinois hold a bachelor's degree or higher.

What is the poverty rate in Mason, Illinois?

About 6.1% of people in Mason, Illinois live below the federal poverty line.

Has Mason, Illinois grown since 1990?

Yes, Mason, Illinois has grown since 1990. The population has added about 16 residents, a change of about 4 percent over that period.

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

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