How many people can be on the family membership? We have 6 in our family.

A membership card should generally work for a family of 6.

2 maximum

4 I believe

Two cards, holder plus one household card for a spouse or any one under 18.

Ask the service desk

You get 2 cards per membership. Those 2 can take anyone with them to shop. The person with their name on the card pays even if you use cash. You must be 18 or older. Get the executive membership and you get cash back each year. If you apply for the Citibank Visa through Costco (available at the store), you get cash back from Citibank each year. With 6 in your family it is a great investment. We budget money (cash) each month for our needs and when we charge something that amount is deducted from the total. That way we never charge too much and we pay off the card each month. Good luck.