Skip nav to main content.


"Love Arsenal. I really don't know what took me so long to switch from my old bank!"

African American woman looking down to the side Tori T.
Open Your Account Today!

Who can join?

In order to do business with Arsenal, you need to meet one of the criteria below.
Qualifying for membership is easy!

You live or work in an area we serve

Missouri: Jefferson County  |  St. Louis County  |  St. Louis City
Illinois: St. Clair County  |  Madison County  |  Monroe County  |  Randolph County

In addition, we serve select ZIP codes in Franklin County (63039, 63055, 63068, 63069, 63077, 63084, 63089, 63090), Jasper County (64801), Miller County (65026), Camden County (65049, 65065) and Morgan County (65072) in Missouri.

You have a family member who is an Arsenal member

If you have a parent, grandparent, brother, sister, child, grandchild, spouse or legal guardian who is a member of Arsenal, you can join the credit union, too! This includes steps, in-laws and legally adoptive relationships.

You are employed by NGA or the local VA, or contractor companies of either

The National Geospatial-Intelligence Agency (NGA) is our original sponsor group. We were founded in 1948 to serve their employees and family members. We also serve those who work for the Department of Veterans Affairs (Veterans Administration).

Retired employees of the Department of Defense and the Department of Veterans Affairs residing in the St. Louis area are also eligible to join Arsenal.

If you do not qualify through any of the above, here are other ways you can join.