Greene County, Illinois Demographics 2026

Name: Greene County, Illinois Demographics
Creator: U.S. Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Greene County, Illinois has a population of 11,683, the 84th most populous county in Illinois. The median household income is $62,192 and the median home value is $95,200. The poverty rate is 14.3%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

Greene County Quick Facts

Population 11,683

Median Household Income $62,192

Median Home Value $95,200

Poverty Rate 14.3%

Unemployment Rate 4.9%

Median Age 43.4 years

Homeownership Rate 78.2%

Affordability Ratio 1.5x

Bachelor's Degree+ 19.0%

High School Graduation 91.2%

Cities/Places 9

Population 11,683 84th of 102

Median Income $62,192 25% lower than state

Poverty Rate 14.3%

Unemployment 4.9%

How Greene County Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric	2019–2023	2020–2024	Change
Population	11,837	11,683	-1.3%
Median household income	$60,976	$62,192	+2.0%
Median home value	$94,400	$95,200	+0.8%

Median Household Income

Greene

$62,192

$83,390

National

$80,734

Median Home Value

Greene

$95,200

$263,300

National

$332,700

Economy & Housing

Household Income Distribution

Under $25K 17.4%

$25K-$50K 21.3%

$50K-$100K 31.4%

$100K+ 29.8%

Detailed income brackets

Under $10K

6.5%

$10K-$15K

3.1%

$15K-$20K

3.9%

$20K-$25K

4.0%

$25K-$30K

6.5%

$30K-$35K

4.0%

$35K-$40K

2.8%

$40K-$45K

4.0%

$45K-$50K

4.1%

$50K-$60K

8.2%

$60K-$75K

11.1%

$75K-$100K

12.1%

$100K-$125K

8.4%

$125K-$150K

6.2%

$150K-$200K

9.2%

$200K+

5.9%

Employment

4.9% Unemployment Rate State: 5.8%|National: 5.2%

58.0% Labor Force Participation

Housing Overview

Owner 78.2%

Renter 21.8%

Affordability Index Very Affordable

1.5x home value to income ratio

Median gross rent $754/mo 14.5% of median household income annually

People & Demographics

Age Distribution

Under 18

22.0%

18-34

18.1%

35-54

23.7%

55-74

27.6%

75+

8.6%

Race & Ethnicity

Diversity Index

Very Low Diversity

A less diverse community where one racial or ethnic group represents a large majority.

State average: 61 | National average: 61

Education

Educational Attainment (Adults 25+)

Cities & Places in Greene County

City	Population	Median Income	Poverty	Home Value
Carrollton	2,479	$60,455	11.8%	$114,000
White Hall	2,257	$55,054	17.3%	$63,800
Roodhouse	1,544	$52,604	25.6%	$68,600
Greenfield	1,105	$71,250	11.7%	$103,900
Kane	201	$54,375	14.6%	$80,600
Eldred	172	$80,417	14.0%	$80,000
Rockbridge	146	$98,125	6.9%	$77,500
Hillview	99	$59,375	16.2%	$62,500
Wilmington	92	$74,167	31.5%	$34,500

Explore Illinois Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Population Overview

Greene County is located in Illinois with a total population of 11,683. It is the 84th most populous county out of 102 in Illinois. The county encompasses 9 Census-designated places.

Age Demographics

The median age in Greene County is 43.4 years. This is 11% higher than the state median of 39.0 years.

Economy, Income & Housing

The median household income in Greene County is $62,192. This is 25% lower than the state median of $83,390. It is also 23% lower than the national median of $80,734. The poverty rate stands at 14.3%. This is 21% higher than the state poverty rate of 11.8%. The unemployment rate is 4.9%. This is 17% lower than the state rate of 5.8%. The median home value is $95,200. Housing costs are 64% lower than the state median of $263,300. With a home-value-to-income ratio of just 1.5x, Greene County is one of the most affordable housing markets in the area. 78.2% of occupied housing units are owner-occupied. This homeownership rate is 17% higher than the state average of 67.1%.

Race & Ethnicity

Greene County has a predominantly White (non-Hispanic) population, comprising 95.8% of all residents. Hispanic or Latino residents account for 1.1%. The White (non-Hispanic) population is significantly higher than the state average (95.8% vs 58.1%). The Black or African American population (0.8%) is well below the state average of 13.3%. The Hispanic or Latino population (1.1%) is well below the state average of 18.8%. The Asian population (0.5%) is well below the state average of 5.9%.

Education

19.0% of residents aged 25 and older hold a bachelor's degree or higher. This is 50% lower than the state rate of 37.9%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 91.2%.

Data Sources & Methodology

All figures for Greene County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Illinois and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.

Frequently Asked Questions

What is the population of Greene County, Illinois?

Greene County has a population of 11,683, making it the 84th most populous county in Illinois.

What is the median income in Greene County?

The median household income in Greene County is $62,192 with a poverty rate of 14.3%.

How many cities are in Greene County, Illinois?

Greene County contains 9 Census-designated places.