Green Lake County
- Population
- 19,263
- Area
- 349.54 sq mi (905.31 km²), 30.58 sq mi water
- Median age
- 45.6
- Households
- 8,285
- Persons per household
- 2.3
- Median household income
- $68,196
- Median house value
- $215,400
Demographics: 2020–2024 ACS
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