As required by law, membership in the La Crosse Area Postal Credit Union is open to individuals who are included in the field of membership as defined by the Credit Union bylaws.

Membership in the La Crosse Are Postal Credit Union is open to individuals who are postal and/or federal employees, active or retired, who live or work within a 50 mile radius of La Crosse or the 546 zip code area. A person who works in the La Crosse Post Office building. A person who is an immediate family member of any of the above who is a member. Immediate family includes but is not limited to brothers, sisters, brothers–in-law, sisters-in-law, spouses, children, grandchildren and grandparents.