|— Unincorporated community —|
|Time zone||Pacific (PST) (UTC-8)|
|• Summer (DST)||PDT (UTC-7)|
|Area code(s)||503 and 971|
|GNIS feature ID|
Knappa is an unincorporated community located on the south bank of the Columbia River in Clatsop County, Oregon. According to Oregon Geographic Names, it is named after Aaron Knapp, Jr., an early settler. There was a post office in Knappa from 1872 to 1943.
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