Are you ready to become a member/owner of Capital Credit Union? Anyone living or working in Outagamie, Calumet, Winnebago or Brown Counties in Wisconsin are eligible to join the Credit Union. Immediate family members of current Capital Credit Union members are also eligible to join. Simply fill out a membership pre-application and make a small deposit in a savings (share) account ($5.00 minimum). That's all it takes to be eligible for all the financial services offered to members of Capital Credit Union!