Lewis Clark Credit Union - Lewiston Share: Financial servicesBanking Lewis Clark Credit Union - Lewiston Visit Website 1626 17th Street Lewiston, ID 83501 (208) 746-7233 (208) 746-0426 (fax) Facebook Twitter YouTube Hours: Lobby:Monday - Thursday 9:00am to 5:30pmFriday 9:00am to 6:00pmDrive-thru:Monday - Thursday About About A not- for- profit financial co-operative offering a variety of progressive financial products and services to our members. Committed to our members since 1939. Our focus is your future.