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|Elevation||227 m (745 ft)|
|GNIS feature ID||0415140|
It was founded in 1850 by Johannes and Carl Johan Samuelson, who named it "Opphem", after their family farm in Sweden.
A post office was established in 1871.
Ophiem is located atat an elevation of 745 feet.
- Callary, Edward (2009). "Place Names of Illinois". University of Illinois.
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