Johnsonville is a city of 72 people in Illinois. Four-year degrees are less common here than nationally, at 2% of adults. 48.6% of people here live below the federal poverty line. The median age is 27.7, younger than the US median of 38.9. 84% of homes are owner-occupied. The foreign-born share is 0%.
At a glance
Lower income
median household income $55,313, below the US median
US median: $82,259
Younger
median age 27.7
US median: 38.9
Less educated
2% hold a bachelor's degree
US average: 36%
Owner-heavy
84% owner-occupied
US average: 65%
Unique to this place
What stands out about Johnsonville
What changed most since 1990
Poverty rate9.4% → 48.6%(+39.2 pts)US over the same years: −0.8 pts
Median age40.6 → 27.7(−12.9 years)US over the same years: +6.0 years
Adults with a bachelor's degree8.9% → 2.1%(−6.8 pts)US over the same years: +15.3 pts
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
Over time
Johnsonville, decade by decade
Johnsonville population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
64
$55,002
$35,999
8.9%
0.0
2000
69
$81,974
$40,987
12.0%
0.0
2010
77
$44,698
$64,736
11.8%
27.3
2020
72
$34,196
–
16.2%
3.2
2024
72
$55,313
–
2.1%
6.8
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
