Join Keystone FCU

How do I join?

The easiest way to join is to visit one of our convenient branches. You will need to bring two forms of identification (one must be a photo ID) and a $5.00 deposit to open an account.

Who can join?

Keystone FCU began serving the employees of the public school districts of Chester County in 1939. Today, Keystone FCU has a multi-common bond charter that gives us the ability to welcome businesses from around the area as Select Employee Groups, or SEGs. This means that members must be employed by, retired from, or a volunteer of, a company from our field of membership; members of their immediate families or households; or be an employee of Keystone FCU. Please click here for a complete list of Keystone FCU SEGs.

Family Membership

Once you become a credit union member, you can invite your immediate family members and household members to join. These guidelines will help you determine their eligibility.

Immediate Family:

Anyone in the immediate family of an eligible member may join our credit union even if the eligible member does not join. Immediate family members include spouses, parents, children, siblings, grandparents, and grandchildren. Adoptive and step-relationships are also included in the definition. Example: The grandchild of an eligible member may join, even if the eligible member does not hold credit union membership. A nephew is not eligible to join under the immediate family definition unless his parent actually joins the credit union, creating a new immediate family unit that makes him eligible for membership.


People living in the same residence or maintaining a single economic unit with an eligible member may join only if the eligible member actually belongs to the credit union. Household members include domestic partners, roommates, family members, and legal guardian relationships. The definition excludes temporary residents and residents of boarding houses, fraternity or sorority houses, and condo complexes. Example: The roommate of an eligible member may join only if the eligible member currently belongs to the credit union. Once a person joins a credit union, regardless of what category made them eligible for membership, their immediate families and their households also become eligible to join.