The employee-organized federal credit union was initially formed to serve the civilian employees of Naval Training Center San Diego.

As the credit union grew, the field of membership expanded internationally allowing for USA Fed's presence in the Pacific Rim.

From 2004 until 2007, the credit union marketed itself as USA Federal, unveiling a unified brand image across printed collateral materials and their online presence.

As of March 9, 2009, USA Fed has 20 branches and 23 ATMs, located both inside the United States (California and Nevada) and abroad (Japan and Korea).

[6] Since 2004, USA Fed has been a sponsor of Walk on the Wild Side,[7] an event benefiting the San Diego Zoo.