Greene County, IL demographics:
population, income, and more
Greene County population
How many people live in Greene County
Greene County is home to 11,683 residents, according to the most recent Census data. Gender-wise, 50.5% of Greene County locals are male, and 49.5% are female.
Age demographics
The median age in Greene County is 43, with the population distributed as follows: about 17.6% are children under 15, then 11.5% are in the 15 to 24 age group. Adults between 25 and 44 make up 22.3% of the population, while another 27.7% fall into the 45 to 64 bracket. Finally, around 20.8% are 65 or older.
Racial makeup
In Greene County, 99.5% of the population are US-born citizens, while 0.4% have gained naturalized citizenship. As for race, 95.8% of locals are Caucasian, 0.8% are African American and 0.5% have Asian roots. There’s also a share of 2.5% that includes residents with two or more races.
Households in Greene County
A peek inside Greene County households
Greene County has 4,452 households, with an average of 3 members in each. Of these, 65% are families, while the remaining 35% are made up of individuals living alone or with non-relatives, such as roommates.
Households stats
Housing in Greene County
The housing landscape of Greene County
Greene County's housing consists of 5,785 units, with 82.8% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 0.3% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 10.3% of the housing landscape.
The age of buildings in Greene County
In Greene County, the median construction year is 1957. About 36% of homes were built before the 1940s, with another 7.4% going up by 1949. Most development happened in the second half of the 20th century. Then, 3.4% of homes were added from 2000 to 2009, 4% between 2010 and 2019, and 0.7% are part of the newest wave of development.
Greene County occupancy rates
Out of the 4,452 occupied housing units in Greene County, 78.2% are owner-occupied, while 21.8% are lived in by tenants. Meanwhile, 23% of all homes on the local market sit vacant.
Greene County housing costs
Housing costs in Greene County come to a median of $725 per month, while tenants specifically pay a median gross rent of $754.
Education in Greene County
Greene County education at a glance
About 52% of the population in Greene County went to high school, while 17.8% pursued college studies. Another 10.8% earned an associate degree and 12.2% hold a bachelor’s. Meanwhile, 5.5% went even further, earning a master’s or doctorate.
Income in Greene County
How much people earn in Greene County
The average annual household income in Greene County was $84,051 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +2.9% change from the previous year. At the same time, the median income stood at $62,192, reflecting a +2% shift over the same period.
Greene County income by age
In Greene County, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $69,792. Those with someone between 45 and 64 in charge, often well established professionally, earn $73,661 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $47,321, while those led by someone over 65, many of whom may be retired, have about $47,359 in earnings. Overall, 85.8% of the locals in this community live above the poverty line.
Employment in Greene County
Workforce and job types in Greene County
The job market in Greene County is powered by 5,184 working residents, spread across a range of industries and roles. 68.9% of the working population are employed in professional or administrative positions, while 31.1% are in hands-on or service-based jobs. Also, 11% run their own businesses, 63.4% are employed by private companies, and 15.6% work in the public sector.
Workforce demographics
Available workforce
The unemployment rate in Greene County stands at 4.9%, representing the share of the workforce currently without a job and actively looking for one.
Transportation in Greene County
How people get around in Greene County
Commuting methods vary: 88% of residents travel by personal vehicle and 0.8% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.
What is the median and average household income in Greene County by zipcode?
| Zipcode | Population | Number of households | Median income | Average income |
|---|---|---|---|---|
| 62078 | 73 | 27 | $0 | $65,793 |
| 62081 | 329 | 81 | $91,875 | $88,465 |
| 62082 | 2,265 | 925 | $62,875 | $82,974 |
| 62092 | 2,431 | 888 | $56,607 | $76,318 |
| 62098 | 104 | 22 | $0 | $102,245 |
| 62016 | 3,882 | 1,588 | $61,949 | $86,347 |
| 62027 | 516 | 208 | $64,375 | $77,266 |
| 62044 | 1,852 | 629 | $71,146 | $94,116 |
| 62050 | 268 | 103 | $84,432 | $103,857 |
| 62054 | 315 | 141 | $61,417 | $73,204 |
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FAQs about Greene County demographics
What is the total population of Greene County?
What is the gender ratio in Greene County?
- 50.5% males (5,904 residents)
- 49.5% females (5,779 residents)
What is the median age in Greene County?
What is the age distribution of the population in Greene County?
- Under 15: 17.6% (2,059 residents)
- Ages 15-24: 11.5% (1,348 residents)
- Ages 25-44: 22.3% (2,601 residents)
- Ages 45-64: 27.7% (3,241 residents)
- Over 65: 20.8% (2,434 residents)
What is the racial and ethnic makeup of Greene County?
- White: 95.8% (11,198 residents)
- Black or African American: 0.8% (88 residents)
- American Indian and Alaska Native: 0.1% (16 residents)
- Asian: 0.5% (61 residents)
- Native Hawaiian and Other Pacific Islander: 0% (0 residents)
- Two or More Races: 2.5% (291 residents)
- Other: 0.2% (29 residents)
What percentage of the population in Greene County are U.S.-born citizens?
How many housing units are there in Greene County?
How many households are in Greene County and what is the average household size?
What is the median household income in Greene County?
What is the employment rate and job market overview for Greene County?
Job types:
- White-collar workers: 68.9% (3,574 residents)
- Blue-collar workers: 31.1% (1,610 residents)
Places of employment:
- Self-employed: 11% (571 residents)
- Private companies: 63.4% (3,284 residents)
- Governmental workers: 15.6% (807 residents)
- Not-for-profit companies: 10.1% (522 residents)
Data source & methodology
The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.
The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.
No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.