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COUNTY

Johnson County

Illinois · 13,363 residents (2025 est.) · 343.736 sq mi
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The short version

Johnson County has lower-than-average household income, with a median household income of $62,528. Population has held roughly steady since 2000. 20% of adults hold a bachelor's degree or higher, below the national rate of 36%. Median home value has more than doubled since 2000, reaching $160,500. Households here earn about 25% less than the Illinois median.

At a glance
Lower income
below the US median
US median: $82,259
Older
median age 41.4
US median: 38.9
Less educated
20% hold a bachelor's degree
US average: 36%
Less affordable
home values up 39%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
13,376
+4%since 2000
from 12,878 in 2000
1990 – 2025
Population density
39 / sq mi
−2%since 2009
from 40 / sq mi in 2009
US average: 281
Median age
41.4
+13%since 2000
from 36.7 in 2000
US average: 38.9

PEP 2025 EST:13,363 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
11K12K13K13K14K1990201020202024Johnson County
202413K
1990201020202024
Age distribution, 2024
Under 54.2%(566)
US avg: 5.6%
5 to 94.5%(604)
US avg: 6%
10 to 146.7%(893)
US avg: 6.4%
15 to 195.5%(740)
US avg: 6.6%
20 to 248.1%(1,078)
US avg: 6.5%
25 to 3412.7%(1,694)
US avg: 13.7%
35 to 4413.4%(1,791)
US avg: 13.2%
45 to 5411.5%(1,532)
US avg: 12.2%
55 to 6413.8%(1,848)
US avg: 12.7%
65 to 7411.1%(1,479)
US avg: 10.2%
75 to 845.9%(789)
US avg: 5.1%
85 and over2.7%(362)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$62,528
+3%inflation adjusted, since 2000
from $33,326 in 2000
US average: $82,259
1990 – 2024
Per capita income
$27,765
+54%since 2000
from $17,990 in 2000
US average: $44,673
Households earning $100K+
41.4%
+20.2 ptssince 2009
from 21.2% in 2009
US average: 53.3%
Poverty rate
17.6%
+6.3 ptssince 2000
from 11.3% in 2000
US average: 12.5%
Income inequality (Gini)
0.436
+9%since 2010
from 0.398 in 2010
US average: 0.476
Workforce by industry, 2024
Information10.4%
US avg: 10.8%
Retail trade8.3%
US avg: 9.9%
Wholesale trade7%
US avg: 6.9%
Other services3.9%
US avg: 6.7%
Public administration3.4%
US avg: 4.8%
Agriculture, forestry, fishing3.2%
US avg: 1.6%
Transportation & warehousing3.1%
US avg: 2.2%
Finance & insurance2.8%
US avg: 5.9%
Construction2.6%
US avg: 1.2%
Professional, scientific, technical2.1%
US avg: 5.1%
Arts, entertainment, food1.2%
US avg: 1.9%
Education & health services0.8%
US avg: 0.9%
Manufacturing0.6%
US avg: 0.4%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$160,500
+39%inflation adjusted, since 2000
from $63,400 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$781
+22%inflation adjusted, since 2000
from $351 in 2000
US average: $1,442
Owner-occupied
82.0%
−2.7 ptssince 2000
from 84.7% in 2000
18.0% rent
Vacancy rate
26.0%
+7.5 ptssince 2009
from 18.5% in 2009
US average: 10.0%
Owner cost-burdened
16.6%
+0.1 ptssince 2009
from 16.5% in 2009
US average: 22.9%
Renter cost-burdened
34.6%
+6.3 ptssince 2009
from 28.3% in 2009
US average: 47.4%
Afford Score
2.6
+30%since 2009
from 2.0 in 2009
2009 – 2024
Our index: median home value divided by median household income. Lower is more affordable.
Gentrification Score
52
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
RELATED:See current rent listings in Johnson County on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic81.9%(10,553)
Black14.1%(1,821)
Hispanic / Latino2.9%(368)
Asian0.1%(17)
Other0%
2024
White, non-Hispanic80.1%(10,716)
Black7.8%(1,039)
Hispanic / Latino4.5%(597)
Asian0.2%(33)
Other7.4%(991)
Diversity Score
43
+24%since 2009
from 35 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Segregation Score
32
−61%since 2020
from 81 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
Mexican3.3%(443)
Puerto Rican0.3%(35)
Spaniard0.2%(30)
Colombian0.2%(26)
Bolivian0.2%(24)
Cuban0.1%(9)
Asian origin
Vietnamese0.2%(21)
Ancestry
German13.9%(1,856)
English11.2%(1,496)
Irish10.4%(1,396)
American6.4%(861)
Polish2.5%(337)
Scottish2.3%(305)
Scotch-Irish1.4%(181)
French1%(135)
Italian1%(135)
Swedish0.9%(122)
Dutch0.5%(67)
Welsh0.5%(67)
+ 19 more ancestry groups with data
Nigerian0.4%(56)
British0.4%(52)
Austrian0.3%(38)
Norwegian0.2%(33)
Brazilian0.2%(28)
Romanian0.2%(26)
Swiss0.2%(24)
Czech0.2%(21)
Greek0.1%(17)
Ukrainian0.1%(16)
Danish0.1%(14)
Arab0.1%(12)
Hungarian0.1%(9)
Russian0.1%(8)
Iraqi0%(6)
Belgian0%(4)
RANKED:Largest German population · Largest English population · Largest Irish population · Largest American population · Largest Mexican population
Section 05

Education

Bachelor's degree or higher
19.6%
+7.9 ptssince 2000
from 11.7% in 2000
US average: 35.6%
High school or higher
85.4%
+18.3 ptssince 2000
from 67.1% in 2000
US average: 89.6%
Graduate degree
7.6%
+3.2 ptssince 2000
from 4.4% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
28.4 min
+44%since 2000
from 19.7 min in 2000
US average: 26.5
Drive alone to work
84.8%
+1.1 ptssince 2009
from 83.7% in 2009
US average: 68.9%
Carpooled to work
8.1%
−0.3 ptssince 2009
from 8.5% in 2009
US average: 8.5%
Public transit
0.0%
−0.3 ptssince 2009
from 0.3% in 2009
US average: 3.2%
Worked from home
4.8%
+0.8 ptssince 2009
from 4.0% in 2009
US average: 15.0%
Walked to work
0.9%
−1.3 ptssince 2009
from 2.2% in 2009
US average: 2.4%
Biked to work
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 0.4%
No vehicle available
4.3%
+0.3 ptssince 2009
from 4.0% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
3.5%
−5.2 ptssince 2011
from 8.7% in 2011
US average: 5.2%
Labor force participation
42.0%
+2.5 ptssince 2011
from 39.5% in 2011
US average: 63.5%
Self-employed
17.5%
+1.6 ptssince 2009
from 15.9% in 2009
US average: 13.1%
Management & professional
32.5%
−21.7 ptssince 2009
from 54.2% in 2009
US average: 42.5%
Section 08

People & community

Male
57.3%
−3.3 ptssince 2009
from 60.6% in 2009
Female
42.7%
+3.3 ptssince 2009
from 39.4% in 2009
Foreign born
1.2%
−1.2 ptssince 2009
from 2.4% in 2009
US average: 14.1%
Veterans
8.1%
−54.3 ptssince 2009
from 62.4% in 2009
US average: 6.2%
With a disability
18.6%
−0.3 ptssince 2012
from 18.9% in 2012
US average: 13.3%
Uninsured
8.1%
−80.0 ptssince 2013
from 88.1% in 2013
US average: 8.4%
Broadband at home
80.1%
+19.4 ptssince 2017
from 60.7% in 2017
US average: 91.0%
English only at home
97.7%
+0.4 ptssince 2016
from 97.3% in 2016
US average: 77.7%
Spanish at home
1.1%
−0.8 ptssince 2016
from 1.9% in 2016
US average: 13.6%
Marital status
Men 15+
Never married47.1%(3,154)
Married35.9%(2,402)
Widowed2.5%(169)
Divorced14.5%(969)
Women 15+
Never married21.8%(1,008)
Married48.8%(2,256)
Widowed13.6%(627)
Divorced15.8%(728)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Drill deeper

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Head to head

Compare Johnson County to nearby counties

JOHNSON COUNTY VS
Williamson County
Income$65,604+5%
Home value$156,400−3%
Population67,225+403%
SEE FULL COMPARISON →
JOHNSON COUNTY VS
Pope County
Income$60,050−4%
Home value$143,800−10%
Population3,672−73%
SEE FULL COMPARISON →
JOHNSON COUNTY VS
Massac County
Income$65,116+4%
Home value$121,900−24%
Population13,502+1%
SEE FULL COMPARISON →
JOHNSON COUNTY VS
Union County
Income$55,728−11%
Home value$131,700−18%
Population16,656+25%
SEE FULL COMPARISON →
Frequently asked

How many people live in Johnson County, Illinois?

Johnson County, Illinois has about 13,376 residents according to the 2024 American Community Survey.

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

The typical household in Johnson County, Illinois earns about $62,528 a year. Half of households make more than that, and half make less.

Is Johnson County, Illinois expensive?

In Johnson County, Illinois, the median home is worth about $160,500, and the typical rent is about $781 a month.

How educated are people in Johnson County, Illinois?

About 19.6% of adults age 25 and over in Johnson County, Illinois hold a bachelor's degree or higher.

What is the poverty rate in Johnson County, Illinois?

About 17.6% of people in Johnson County, Illinois live below the federal poverty line.

Has Johnson County, Illinois grown since 1990?

Yes, Johnson County, Illinois has grown since 1990. The population has added about 2,029 residents, a change of about 18 percent over that period.

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Explore from here

4 census tracts
Census Tract 9776Census Tract 9778Census Tract 9777Census Tract 9800
7 ZIP codes
ZIP 62995ZIP 62939ZIP 62912ZIP 62972ZIP 62923ZIP 62943ZIP 62967
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →