On average, the cost of a membership will depend on the membership you choose and oftentimes, the memberâs rank if they are in the military. For instance, the social membership, which allows members to enjoy everything but tennis and golf can cost $5,000 to join and $300 per month. Again, depending on the rank, the initiation fees can range anywhere from $1,000 to more than $35,000 and most monthly dues average out to $300 to $500 per month.