Stephenson County, IL
Demographics & Statistics
Updated: 2025-10-25
Updated: 2025-10-25
Life in Stephenson County research summary. HomeSnacks has been researching the quality of life in Stephenson County over the past eight years using Census data, FBI crime data, cost of living data, and other primary sources. Based on the most recently available data, we found the following about life in Stephenson County:
The population in Stephenson County is 44,042.
The median home value in Stephenson County is $154,115.
The median income in Stephenson County is $61,943.
The median rent in Stephenson County is $764.
The unemployment rate in Stephenson County is 4.7%.
The poverty rate in Stephenson County is 13.1%.
The average high in Stephenson County is 66.5° and there are 84.3 inches of rainfall annually.
The average high in Stephenson County is 66.5°.
There are 73.69 nice days each year.
Expect an average of 84.3 inches of rain each year with 11.4 inches of snow.
There is an average of 4:40 hours of sun each day in Stephenson County.
| Stat | Stephenson County |
|---|---|
| Mean High | 66.5 |
| Nice Days | 73.69 |
| Rainfall | 84.3 |
| Snowfall | 11.4 |
| Sunny Hours | 4:40 |
The current population in Stephenson County is 44,042. The population has decreased -0.6% from 2019.
| Year | Population | % Change |
|---|---|---|
| 2023 | 44,817 | 0.3% |
| 2022 | 44,683 | -0.9% |
| 2021 | 45,093 | - |
Stephenson County is 51.2% female with 22,540 female residents.
Stephenson County is 48.8% male with 21,502 male residents.
| Gender | Stephenson County | IL | USA |
|---|---|---|---|
| Female | 51.2% | 50.6% | 50.5% |
| Male | 48.8% | 49.4% | 49.5% |
Stephenson County is:
80.0% White with 35,218 White residents.
8.4% African American with 3,714 African American residents.
0.0% American Indian with 20 American Indian residents.
0.8% Asian with 355 Asian residents.
0.0% Hawaiian with 0 Hawaiian residents.
0.1% Other with 55 Other residents.
5.3% Two Or More with 2,345 Two Or More residents.
5.3% Hispanic with 2,335 Hispanic residents.
| Race | Stephenson County | IL | USA |
|---|---|---|---|
| White | 80.0% | 58.7% | 58.2% |
| African American | 8.4% | 13.6% | 12.0% |
| American Indian | 0.0% | 0.1% | 0.5% |
| Asian | 0.8% | 5.8% | 5.7% |
| Hawaiian | 0.0% | 0.0% | 0.2% |
| Other | 0.1% | 0.3% | 0.5% |
| Two Or More | 5.3% | 3.0% | 3.9% |
| Hispanic | 5.3% | 18.5% | 19.0% |
5.5% of households in Stephenson County earn Less than $10,000.
3.8% of households in Stephenson County earn $10,000 to $14,999.
9.9% of households in Stephenson County earn $15,000 to $24,999.
9.2% of households in Stephenson County earn $25,000 to $34,999.
12.5% of households in Stephenson County earn $35,000 to $49,999.
18.5% of households in Stephenson County earn $50,000 to $74,999.
13.1% of households in Stephenson County earn $75,000 to $99,999.
16.7% of households in Stephenson County earn $100,000 to $149,999.
5.8% of households in Stephenson County earn $150,000 to $199,999.
4.8% of households in Stephenson County earn $200,000 or more.
| Income | Stephenson County | IL | USA |
|---|---|---|---|
| Less than $10,000 | 5.5% | 5.2% | 4.9% |
| $10,000 to $14,999 | 3.8% | 3.4% | 3.6% |
| $15,000 to $24,999 | 9.9% | 6.2% | 6.6% |
| $25,000 to $34,999 | 9.2% | 6.5% | 6.8% |
| $35,000 to $49,999 | 12.5% | 9.9% | 10.4% |
| $50,000 to $74,999 | 18.5% | 15.1% | 15.7% |
| $75,000 to $99,999 | 13.1% | 12.7% | 12.7% |
| $100,000 to $149,999 | 16.7% | 17.9% | 17.4% |
| $150,000 to $199,999 | 5.8% | 9.9% | 9.3% |
| $200,000 or more | 4.8% | 13.1% | 12.6% |
2.0% of adults in Stephenson County completed < 9th grade.
6.0% of adults in Stephenson County completed 9-12th grade.
32.0% of adults in Stephenson County completed high school / ged.
26.0% of adults in Stephenson County completed some college.
12.0% of adults in Stephenson County completed associate's degree.
14.0% of adults in Stephenson County completed bachelor's degree.
6.0% of adults in Stephenson County completed master's degree.
1.0% of adults in Stephenson County completed professional degree.
1.0% of adults in Stephenson County completed doctorate degree.
| Education | Stephenson County | IL | USA |
|---|---|---|---|
| < 9th Grade | 2% | 5% | 5% |
| 9-12th Grade | 6% | 5% | 6% |
| High School / GED | 32% | 25% | 26% |
| Some College | 26% | 20% | 19% |
| Associate's Degree | 12% | 8% | 9% |
| Bachelor's Degree | 14% | 22% | 21% |
| Master's Degree | 6% | 11% | 10% |
| Professional Degree | 1% | 2% | 2% |
| Doctorate Degree | 1% | 2% | 2% |
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