Stephenson County
- Population
- 43,768
- Area
- 0.56 sq mi (1.46 km²), 0 sq mi water
- Median age
- 45.3
- Households
- 19,358
- Persons per household
- 2.2
- Median household income
- $64,043
- Median house value
- $134,900
Demographics: 2020–2024 ACS
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