Riparia is an extinct town in Whitman County, in the U.S. state of Washington.

[3] Riparia was a railway stop along the Snake River approximately 81 miles Northeast of Pasco, WA.

From April 6th, 1917 (coinciding with the declaration of war on the German Empire) till October 16th, 1917 a detachment of Company F 2nd Idaho Infantry garrisoned Riparia to guard railroad and waterway infrastructure from sabotage concerns.

[4] September 19th, 1917 the unit was redesignated Company F, 116th Engineer Regiment, 41st Division.

This Whitman County, Washington state location article is a stub.