No, REAL ID members only Despite some membership cards displaying a star and digital options displaying a photo, that doesn't qualify the cards as a valid form of identification.

REAL ID A temporary driver’s license is not an acceptable form of identification. State-issued Enhanced Driver's License (EDL) or Enhanced ID (EID) U.S. passport U.S. passport card DHS trusted ...

Costco membership cards may help T.S.A. agents confirm your identity if you have no other form of identification but they are not a replacement for a government-issued form of identification.

Costco cards good for 'hot dogs & rotisserie chickens,' not airports, TSA says The deadline for travelers to obtain a Real ID for domestic flights and accessing federal facilities was May 7.