How many people live in Saline County, IL?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 22,800 people living in Saline County, IL. That makes Saline County the 52nd-most populous county in Illinois. It is home to 0.18% of people living in the state.
22.8K
population of Saline County, IL (2024)
0.18%
County share of the Illinois population (2024)
About 22,800 people lived in Saline County, IL in 2024.
Population estimates, 2000–2024
What are Saline County, IL’s age demographics?
About 5,200 Saline County residents are aged 65 and older in 2024. That represents 22.7% of its population. For comparison, the age group represents 17.9% of Illinois' population and 18% in the US overall.
Another 4,700 Saline County residents, or 20.5% of the population, were children under 18. For comparison, the age group represents 21.2% of Illinois' population and 21.6% in the US overall.
A higher share of Saline County, IL's population is aged 65 or older than the US as a whole.
Population estimates by age group, (2024)
What are Saline County, IL’s racial and ethnic demographics?
Non-Hispanic white residents make up 91.3% of the Saline County, IL population, higher than the national share of 57.5%.
In contrast, Saline County’s Hispanic population accounts for 2.3%, below the 20% nationwide, and the non-Hispanic Black or African American population makes up 3.1% of the county, compared with 12.6% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
Saline County, IL has a higher share of a non-Hispanic white population than Illinois as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Saline County, IL is Harrisburg with about 7,900 residents in 2024.
Cities and towns in Saline County, IL ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Harrisburg | 7,937 |
| 2. | Eldorado | 3,583 |
| 3. | Carrier Mills | 1,600 |
| 4. | Independence | 1,133 |
| 5. | Brushy | 948 |
| 6. | Galatia | 787 |
| 7. | Mountain | 350 |
| 8. | Tate | 278 |
| 9. | Raleigh | 278 |
| 10. | Long Branch | 240 |
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
