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COUNTY · 2000 CENSUS

Mason County

Illinois · 16,038 residents · 539.352 sq mi
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The short version

Mason County has lower-than-average household income, with a median household income of $35,985. Population has held roughly steady since 1990. 11% 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 $59,600.

At a glance
Lower income
below the US median
US median: $42,589
Older
median age 39.5
US median: 35.2
Less educated
11% hold a bachelor's degree
US average: 24%
Less affordable
home values up 27%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

Total population
16,038
−1%since 1990
from 16,269 in 1990
1990 – 2025
Population density
30 / sq mi
−1%since 1990
from 30 / sq mi in 1990
US average: 242
Median age
39.5
+8%since 1990
from 36.5 in 1990
US average: 35.2
Population, 1990 – 2024
12K13K15K16K17K1990201020202024Mason County
202413K
1990201020202024
Section 02

Income & economy

Median household income
$35,985
+22%inflation adjusted, since 1990
from $22,434 in 1990
US average: $42,589
1990 – 2024
Per capita income
$17,357
+57%since 1990
from $11,036 in 1990
US average: $21,522
Poverty rate
9.7%
−5.8 ptssince 1990
from 15.5% in 1990
US average: 12.4%
Section 03

Housing

Median home value
$59,600
+27%inflation adjusted, since 1990
from $35,700 in 1990
US average: $120,530
1990 – 2024
Median gross rent
$390
−1%inflation adjusted, since 1990
from $298 in 1990
US average: $602
Owner-occupied
76.8%
+3.0 ptssince 1990
from 73.8% in 1990
23.2% rent
Afford Score
1.7
+4%since 1990
from 1.6 in 1990
1990 – 2024
RELATED:See current rent listings in Mason County on RentDataNow
Section 04

Race & ethnicity

1990
White, non-Hispanic99.4%(16,170)
Black0%(0)
Hispanic / Latino0.2%(26)
Asian0.4%(66)
Diversity Score1.9%(310)
2000
White, non-Hispanic98.5%(15,799)
Black0.1%(19)
Hispanic / Latino0.5%(80)
Asian0.2%(32)
Diversity Score2%(328)
Diversity Score
2
+7%since 1990
from 2 in 1990
1990 – 2024
Section 05

Education

Bachelor's degree or higher
11.2%
+2.4 ptssince 1990
from 8.8% in 1990
US average: 24.4%
High school or higher
79.9%
+7.3 ptssince 1990
from 72.6% in 1990
US average: 80.3%
Graduate degree
3.4%
+0.5 ptssince 1990
from 2.9% in 1990
US average: 8.8%
Section 06

Commute & transportation

Average commute
23.3 min
−20%since 1990
from 29.0 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.

Drill deeper

Places similar to Mason County

Bleckley County
Pop 12,866
Owyhee County
Pop 12,661
Ford County
Pop 13,216
Johnson County
Pop 13,363
Places similar to Mason County
Head to head

Compare Mason County to nearby counties

MASON COUNTY VS
Menard County
Income$82,176+128%
Home value$185,500+211%
Population11,863−4%
SEE FULL COMPARISON →
MASON COUNTY VS
Fulton County
Income$60,599+68%
Home value$107,200+80%
Population32,901+165%
SEE FULL COMPARISON →
MASON COUNTY VS
Cass County
Income$68,125+89%
Home value$97,100+63%
Population12,463same
SEE FULL COMPARISON →
MASON COUNTY VS
Tazewell County
Income$77,982+117%
Home value$167,500+181%
Population130,049+948%
SEE FULL COMPARISON →
Frequently asked

How many people live in Mason County, Illinois?

Mason County, Illinois has about 16,038 residents according to the 2000 Census.

What is the median household income in Mason County, Illinois?

The typical household in Mason County, Illinois earns about $35,985 a year. Half of households make more than that, and half make less.

Is Mason County, Illinois expensive?

In Mason County, Illinois, the median home is worth about $59,600, and the typical rent is about $390 a month.

How educated are people in Mason County, Illinois?

About 11.2% of adults age 25 and over in Mason County, Illinois hold a bachelor's degree or higher.

What is the poverty rate in Mason County, Illinois?

About 9.7% of people in Mason County, Illinois live below the federal poverty line.

Has Mason County, Illinois grown since 1990?

Yes, Mason County, Illinois has shrunk since 1990. The population has lost about 231 residents, a change of about -1 percent over that period.

Keep going

Explore from here

6 census tracts
Census Tract 9565Census Tract 9563Census Tract 9568Census Tract 9567Census Tract 9564Census Tract 9566
8 ZIP codes
ZIP 62644ZIP 62664ZIP 62682ZIP 62633ZIP 62655ZIP 62617ZIP 61567ZIP 61532
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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