CensusEasy
COUNTY · 2000 CENSUS

Warren County

Illinois · 18,735 residents · 542.384 sq mi
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The short version

Warren County has lower-than-average household income, with a median household income of $36,224. Population has held roughly steady since 1990. 16% 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 $60,000.

At a glance
Lower income
below the US median
US median: $42,589
Older
median age 37.8
US median: 35.2
Less educated
16% hold a bachelor's degree
US average: 24%
Less affordable
home values up 34%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

Total population
18,735
−2%since 1990
from 19,181 in 1990
1990 – 2025
Population density
35 / sq mi
−2%since 1990
from 35 / sq mi in 1990
US average: 242
Median age
37.8
+8%since 1990
from 35.2 in 1990
US average: 35.2
Population, 1990 – 2024
16K17K18K19K19K1990201020202024Warren County
202416K
1990201020202024
Section 02

Income & economy

Median household income
$36,224
+24%inflation adjusted, since 1990
from $22,259 in 1990
US average: $42,589
1990 – 2024
Per capita income
$16,946
+60%since 1990
from $10,591 in 1990
US average: $21,522
Poverty rate
9.2%
−5.1 ptssince 1990
from 14.2% in 1990
US average: 12.4%
Section 03

Housing

Median home value
$60,000
+34%inflation adjusted, since 1990
from $33,900 in 1990
US average: $120,530
1990 – 2024
Median gross rent
$376
−3%inflation adjusted, since 1990
from $295 in 1990
US average: $602
Owner-occupied
74.6%
+5.2 ptssince 1990
from 69.4% in 1990
25.4% rent
Afford Score
1.7
+9%since 1990
from 1.5 in 1990
1990 – 2024
RELATED:See current rent listings in Warren County on RentDataNow
Section 04

Race & ethnicity

1990
White, non-Hispanic97.1%(18,626)
Black1.9%(366)
Hispanic / Latino0.8%(144)
Asian0.3%(59)
Diversity Score8.8%(1,692)
2000
White, non-Hispanic94.3%(17,672)
Black1.6%(296)
Hispanic / Latino2.7%(507)
Asian0.3%(61)
Diversity Score11.3%(2,109)
Diversity Score
11
+28%since 1990
from 9 in 1990
1990 – 2024
Section 05

Education

Bachelor's degree or higher
15.8%
+1.3 ptssince 1990
from 14.5% in 1990
US average: 24.4%
High school or higher
82.3%
+5.9 ptssince 1990
from 76.3% in 1990
US average: 80.3%
Graduate degree
4.7%
+0.1 ptssince 1990
from 4.6% in 1990
US average: 8.8%
Section 06

Commute & transportation

Average commute
13.7 min
−28%since 1990
from 19.0 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 Warren County

Mariposa County
Pop 16,918
Hancock County
Pop 16,803
Bond County
Pop 16,959
Dade County
Pop 16,154
Places similar to Warren County
Head to head

Compare Warren County to nearby counties

WARREN COUNTY VS
Henderson County
Income$62,227+72%
Home value$104,400+74%
Population5,984−63%
SEE FULL COMPARISON →
WARREN COUNTY VS
Knox County
Income$57,030+57%
Home value$111,900+87%
Population47,767+194%
SEE FULL COMPARISON →
WARREN COUNTY VS
Mercer County
Income$74,182+105%
Home value$146,700+145%
Population15,229−6%
SEE FULL COMPARISON →
WARREN COUNTY VS
McDonough County
Income$52,795+46%
Home value$107,500+79%
Population25,916+60%
SEE FULL COMPARISON →
Frequently asked

How many people live in Warren County, Illinois?

Warren County, Illinois has about 18,735 residents according to the 2000 Census.

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

The typical household in Warren County, Illinois earns about $36,224 a year. Half of households make more than that, and half make less.

Is Warren County, Illinois expensive?

In Warren County, Illinois, the median home is worth about $60,000, and the typical rent is about $376 a month.

How educated are people in Warren County, Illinois?

About 15.8% of adults age 25 and over in Warren County, Illinois hold a bachelor's degree or higher.

What is the poverty rate in Warren County, Illinois?

About 9.2% of people in Warren County, Illinois live below the federal poverty line.

Has Warren County, Illinois grown since 1990?

Yes, Warren County, Illinois has shrunk since 1990. The population has lost about 446 residents, a change of about -2 percent over that period.

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Explore from here

5 census tracts
Census Tract 8705Census Tract 8704Census Tract 8703Census Tract 8701Census Tract 8702
8 ZIP codes
ZIP 61462ZIP 61473ZIP 61447ZIP 61453ZIP 61423ZIP 61478ZIP 61435ZIP 61417
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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