List of U.S. Counties Named After Rivers - A

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• Alamance County, North Carolina: Alamance is named for the Alamance River.
• Allegany County, New York: Allegany is a variant spelling of the Allegheny River.
• Alleghany County, North Carolina: Alleghany is a corruption of the Native American Delaware tribe's word for the Allegheny River, which is said to have meant a fine stream.
• Allegheny County, Pennsylvania: Allegheny is a corruption of the Native American Delaware tribe's word for the Allegheny River, which is said to have meant a fine stream.
• Appomattox County, Virginia: Appomattox is named for the Appomattox River, which is in turn named for the Appamatucks Native American people.
• Ashtabula County, Ohio: Ashtabula was named for the Ashtabula River.
• Asotin County, Washington: Asotin is named for the Nez Percé name for Eel Creek.
• Auglaize County, Ohio: Auglaize is named for the Auglaize River.