| Zip Code : | 60552 |
| City : | Lake Holiday, Sandwich city, Somonauk village |
| County : | DeKalb County, LaSalle County |
| State : | Illinois (IL) |
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| Land Area : | 27.13 sq mi |
| Water Area : | 0.29 sq mi |
| Latitude : | 41.6668884 |
| Longitude : | -88.7065072 |
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| Population (2010): | 4,448 |
| Population Estimate (2012) : | 4,013 |
| Population Density : | 163.93/sq mi |
| Housing Units (2012) : | 1,842 |
| Median Household Income (2012) : | $72,882 (Illinois : $56,853, USA : $53,046) |
| Median Family Income (2012) : | $79,762 (Illinois : $70,144, USA : $64,585) |
| Median House Price (2012) : | $191,600 (Illinois : $190,800, USA : $181,400) |