United States › Illinois › Clay County COUNTY · 2000 CENSUS
Clay County Illinois · 14,560 residents · 468 sq mi
Time machine
COMPARE TO 1990 Census 2009 ACS 2010 ACS 2011 ACS 2012 ACS 2013 ACS 2014 ACS 2015 ACS 2016 ACS 2017 ACS 2018 ACS 2019 ACS 2020 ACS 2021 ACS 2022 ACS 2023 ACS 2024 ACS
The short version
Clay County is home to 14,560 people in Illinois. 10% of adults hold a bachelor's degree, below the 24% national rate. Owners hold 80% of the housing stock. Home values have risen by half since 1990, reaching $50,200. That trails the Illinois median by roughly 34%. At a median age of 39.7, this is an older place than the country as a whole.
At a glance
Lower income
below the US median
US median: $42,589
Older
median age 39.7
US median: 35.2
Less educated
10% 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 from 36.8 in 1990
US average: 35.2
Population, 1990 – 2024
13K 13K 14K 14K 15K 1990 2000 2010 2020 2024 Clay County Age distribution, 2000
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $30,599
+16%inflation adjusted, since 1990
from $20,006 in 1990
US average: $42,589
from $9,590 in 1990
US average: $21,522
from 16.8% in 1990
US average: 12.4%
$50,200
+23%inflation adjusted, since 1990
from $30,900 in 1990
US average: $120,530
$348
+7%inflation adjusted, since 1990
from $246 in 1990
US average: $602
from 78.9% in 1990
20.1% rent
Section 04
Race & ethnicity 1990
White, non-Hispanic 99.5%(14,392)
Hispanic / Latino 0.4%(62)
2000
White, non-Hispanic 98.2%(14,297)
Hispanic / Latino 0.6%(88)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry Detailed origin tables are available for 2024; showing 2024 data.
Ancestry
+ 11 more ancestry groups with data from 7.6% in 1990
US average: 24.4%
High school or higher
from 65.6% in 1990
US average: 80.3%
from 2.8% in 1990
US average: 8.8%
Section 06
Commute & transportation from 21.6 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.
Marital status
Men 15+
Never married 22.2%(1,222)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Section 09
Health coverage Showing 2024 (the nearest year with coverage data).
from 10.9% in 2013
US average: 8.4%
from 49.9% in 2020
US average: 54.8%
Direct-purchase
from 18.8% in 2020
US average: 13.8%
from 23.6% in 2020
US average: 18.4%
from 26.6% in 2020
US average: 20.9%
VA health care
from 2.6% in 2020
US average: 2.2%
Any private
from 64.6% in 2020
US average: 67.1%
Any public
from 45.4% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2024
Gulf War (2001 or later) 16.9%(149)
Share of the 880 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Drill deeper
Places similar to Clay County Head to head
Compare Clay County to nearby counties CLAY COUNTY VS
Richland County
Income $62,455 +104%
Home value $112,000 +123%
Population 15,219 +19%
SEE FULL COMPARISON →
CLAY COUNTY VS
Effingham County
Income $80,404 +163%
Home value $189,500 +277%
Population 34,519 +170%
SEE FULL COMPARISON →
CLAY COUNTY VS
Wayne County
Income $55,521 +81%
Home value $110,700 +121%
Population 15,882 +24%
SEE FULL COMPARISON →
CLAY COUNTY VS
Marion County
Income $61,240 +100%
Home value $103,000 +105%
Population 36,382 +184%
SEE FULL COMPARISON →
Frequently asked
How many people live in Clay County, Illinois? Clay County, Illinois has about 14,560 residents according to the 2000 Census.
What is the median household income in Clay County, Illinois? The typical household in Clay County, Illinois earns about $30,599 a year. Half of households make more than that, and half make less.
Is Clay County, Illinois expensive? In Clay County, Illinois, the median home is worth about $50,200, and the typical rent is about $348 a month.
How educated are people in Clay County, Illinois? About 9.7% of adults age 25 and over in Clay County, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Clay County, Illinois? About 11.8% of people in Clay County, Illinois live below the federal poverty line.
Has Clay County, Illinois grown since 1990? Yes, Clay County, Illinois has grown since 1990. The population has added about 100 residents, a change of about 1 percent over that period.
Keep going
Explore from here 