COUNTY · 2000 CENSUS

Monroe County

Illinois · 27,619 residents · 385.301 sq mi

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The short version

Monroe County is wealthier than most US places, with a median household income of $55,320. Population has grown 23% since 1990. Median home value has risen by half since 1990, reaching $125,900. Poverty is rare here, at 3.4% of residents.

At a glance

Wealthier

above the US median

US median: $42,589

Older

median age 37.5

US median: 35.2

Less educated

20% hold a bachelor's degree

US average: 24%

Less affordable

home values up 35%, inflation adjusted

US median home: $120,530

Section 01

Population & growth

Total population

27,619

+23%since 1990

from 22,422 in 1990

1990 – 2025

Population density

72 / sq mi

+23%since 1990

from 58 / sq mi in 1990

US average: 242

Median age

37.5

+10%since 1990

from 34.0 in 1990

US average: 35.2

Population, 1990 – 2024

202435K

Section 02

Income & economy

Median household income

$55,320

+20%inflation adjusted, since 1990

from $35,086 in 1990

US average: $42,589

1990 – 2024

Per capita income

$22,954

+65%since 1990

from $13,886 in 1990

US average: $21,522

Poverty rate

3.4%

−1.4 ptssince 1990

from 4.8% in 1990

US average: 12.4%

Section 03

Housing

Median home value

$125,900

+35%inflation adjusted, since 1990

from $70,700 in 1990

US average: $120,530

1990 – 2024

Median gross rent

$562

+13%inflation adjusted, since 1990

from $376 in 1990

US average: $602

Owner-occupied

80.2%

+1.6 ptssince 1990

from 78.6% in 1990

19.8% rent

Afford Score

2.3

+13%since 1990

from 2.0 in 1990

1990 – 2024

RELATED:See current rent listings in Monroe County on RentDataNow

Section 04

Race & ethnicity

1990

White, non-Hispanic99.2%(22,238)

Black0.2%(44)

Hispanic / Latino0.6%(143)

Asian0.2%(52)

Diversity Score3.6%(805)

2000

White, non-Hispanic98.3%(27,156)

Black0%(11)

Hispanic / Latino0.7%(203)

Asian0.3%(85)

Diversity Score2.7%(746)

Diversity Score

−25%since 1990

from 4 in 1990

1990 – 2024

Section 05

Education

Bachelor's degree or higher

20.4%

+6.6 ptssince 1990

from 13.7% in 1990

US average: 24.4%

High school or higher

87.2%

+11.4 ptssince 1990

from 75.9% in 1990

US average: 80.3%

Graduate degree

7.0%

+3.7 ptssince 1990

from 3.3% in 1990

US average: 8.8%

Section 06

Commute & transportation

Average commute

21.1 min

−30%since 1990

from 30.0 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 Monroe County

Head to head

Compare Monroe County to nearby counties

MONROE COUNTY VS

St. Clair County

Income$73,854+34%

Home value$180,300+43%

Population250,708+620%

SEE FULL COMPARISON →

MONROE COUNTY VS

Jefferson County

Income$82,851+50%

Home value$237,200+88%

Population233,132+569%

SEE FULL COMPARISON →

MONROE COUNTY VS

Randolph County

Income$68,131+23%

Home value$135,100+7%

Population29,921−14%

SEE FULL COMPARISON →

MONROE COUNTY VS

St. Louis

Income$56,160+2%

Home value$197,500+57%

Population278,144+698%

SEE FULL COMPARISON →

Frequently asked

How many people live in Monroe County, Illinois?

Monroe County, Illinois has about 27,619 residents according to the 2000 Census.

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

The typical household in Monroe County, Illinois earns about $55,320 a year. Half of households make more than that, and half make less.

Is Monroe County, Illinois expensive?

In Monroe County, Illinois, the median home is worth about $125,900, and the typical rent is about $562 a month.

How educated are people in Monroe County, Illinois?

About 20.4% of adults age 25 and over in Monroe County, Illinois hold a bachelor's degree or higher.

What is the poverty rate in Monroe County, Illinois?

About 3.4% of people in Monroe County, Illinois live below the federal poverty line.

Has Monroe County, Illinois grown since 1990?

Yes, Monroe County, Illinois has grown since 1990. The population has added about 5,197 residents, a change of about 23 percent over that period.

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Explore from here

7 census tracts

Census Tract 6004.01 Census Tract 6005.01 Census Tract 6001.04 Census Tract 6004.02 Census Tract 6001.02 Census Tract 6001.03 Census Tract 6005.02

8 ZIP codes

ZIP 62298 ZIP 62236 ZIP 62278 ZIP 62295 ZIP 62244 ZIP 62248 ZIP 62279 ZIP 62256

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

How we source and harmonize this data →