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- Wabash County, Indiana: Wabash is named for the Wabash River.
- Wabash County, Illinois: Wabash is named for the Wabash River.
- Wicomico County, Maryland: Wicomico is named for the Wicomico River. In Lenape, wicko mekee indicated a place where houses are built, possibly in reference to a settlement.
Read more about this topic: List Of U.S. Counties Named After Rivers