GPO Federal Credit Union is proud to be one of the area’s largest credit unions, serving more than 30,000 members from Oneida ... , Herkimer, Madison Counties and beyond. As a credit union, we are a not-for-profit, member-owned financial cooperative. At GPO, our mission statement is simple, ‘Our Focus is You’. We aim to serve our members by providing lower loan rates, higher savings rates, fewer fees and great products and services. read more