South Jacksonville, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, South Jacksonville, Illinois had a total population of 3,239, the 416th largest village in Illinois, with a median household income of $49,587, which is 41% lower than the state average. The poverty rate is 9.0%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 41% below the state average, indicating significant economic challenges.
- Unemployment rate of 15.8% is notably above the national average.
South Jacksonville Quick Facts
How South Jacksonville 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 | 3,255 | 3,239 | -0.5% |
| Median household income | $53,438 | $49,587 | -7.2% |
| Median home value | $137,100 | $135,800 | -0.9% |
How South Jacksonville Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
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+)
South Jacksonville Rankings in Illinois
Explore Illinois Rankings
Other Cities in Morgan County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Jacksonville | 18,014 | $65,432 | 18.4% | $128,200 |
| Waverly | 1,375 | $55,671 | 7.9% | $98,400 |
| Meredosia | 871 | $54,485 | 18.0% | $65,300 |
| Chapin | 668 | $72,269 | 3.9% | $89,400 |
| Franklin | 650 | $75,714 | 6.2% | $116,400 |
| Murrayville | 617 | $46,528 | 23.2% | $106,800 |
| Woodson | 550 | $80,750 | 6.1% | $131,500 |
| Alexander | 239 | N/A | 0.0% | $118,200 |
| Concord | 162 | $55,893 | 6.8% | $109,200 |
| Lynnville | 85 | $59,375 | 14.1% | $62,500 |
Cities Similar to South Jacksonville
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Momence | 3,291 | $58,365 | $154,800 | 14.8% | 10.1% |
| Johnston City | 3,327 | $42,465 | $88,100 | 19.2% | 17.8% |
| Westville | 3,419 | $54,912 | $100,000 | 18.8% | 18.6% |
| Madison | 2,900 | $49,326 | $58,900 | 9.1% | 26.4% |
| Gibson City | 3,434 | $42,955 | $153,800 | 13.8% | 14.3% |
Population Overview
South Jacksonville is a small community located in Illinois, within Morgan County. The total population is 3,239. It ranks as the 416th most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in South Jacksonville is 48.7 years. This is 25% higher than the state median of 39.0 years. 16.5% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.
Economy, Income & Housing
The median household income in South Jacksonville is $49,587. This is 41% lower than the state median of $83,390. It is also 39% lower than the national median of $80,734. The poverty rate stands at 9.0%. This is 24% lower than the state poverty rate of 11.8%. The unemployment rate is 15.8%. This is 171% higher than the state rate of 5.8%. The median home value is $135,800. Housing costs are 48% lower than the state median of $263,300. With a home-value-to-income ratio of just 2.7x, South Jacksonville is one of the most affordable housing markets in the area. 68.7% of occupied housing units are owner-occupied. This homeownership rate is 2% higher than the state average of 67.1%.
Race & Ethnicity
South Jacksonville has a predominantly White (non-Hispanic) population, comprising 87.1% of all residents. Black or African American residents account for 5.1%. The White (non-Hispanic) population is significantly higher than the state average (87.1% vs 58.1%). The Black or African American population (5.1%) is well below the state average of 13.3%. The Hispanic or Latino population (3.5%) is well below the state average of 18.8%. The Asian population (1.1%) is well below the state average of 5.9%.
Education
24.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 36% 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 93.1%.
Data Sources & Methodology
All demographic data for South Jacksonville, Illinois is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Illinois state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,445 Census-designated places in Illinois. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of South Jacksonville, Illinois?
South Jacksonville, Illinois has a population of 3,239 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in South Jacksonville, IL?
The median household income in South Jacksonville is $49,587, which is 39% lower than the national median of $80,734.
What is the poverty rate in South Jacksonville, IL?
The poverty rate in South Jacksonville is 9.0%. This means approximately 291 residents live below the federal poverty line.
What is the racial makeup of South Jacksonville, Illinois?
South Jacksonville's population is 87.1% White, 5.1% Black, 3.5% Hispanic/Latino, and 1.1% Asian.
What is the median home value in South Jacksonville, IL?
The median home value in South Jacksonville is $135,800. The home-value-to-income ratio is 2.7x.
How educated is South Jacksonville, Illinois?
24.3% of adults (25+) in South Jacksonville hold a bachelor's degree or higher, and 8.9% hold a graduate or professional degree.