NSWC Federal Credit Union caters mainly to the federal employees at Dahlgren. It has a few branches elsewhere, to accommodate the growing members who live substantial ways away from Dahlgren. As a credit union, it offers better rates than traditional banks may offer. In some ways, it really was better when it had fewer members and was more personalized in the services it offered. But like many credit unions, if you qualify for membership, it’s a good deal.