The merger of Arlington Community Federal Credit Union and CommonWealth One Federal Credit Union goes into effect Wednesday (July 1), with members of both financial institutions set to see changes over the coming year.
Members of CommonWealth One recently approved the consolidation plan, allowing the two institutions to legally merge.
With the merger, “you will begin to notice updates to our signage, branding and logo as we begin to adopt and transition to the CommonWealth One name,” Arlington Community Federal Credit Union said in an update to its members.
The goal is to be “fully integrated” by the third quarter of 2027, the Arlington credit union said, adding:
“Once integration is complete, all branches will operate as one organization, and members will have expanded access to all 10 CommonWealth One branch locations — while continuing to receive the same personalized service, local care and trusted relationships you know today.”
Plans for a merger were announced last fall. Currently, Arlington Community Federal Credit Union has about 25,000 members in Northern Virginia, while Alexandria-based CommonWealth One has about 38,000 members across the metro area.
“Both credit unions have been deeply committed to improving the financial lives of our members, to supporting local businesses and nonprofits, and helping the communities we serve thrive,” Arlington Community Federal Credit Union CEO Karen Rosales said in a video presentation posted online after the merger plan was announced.
CommonWealth One Federal Credit Union CEO Frank Wasson called it “a merger of peers in their respective communities.”
The merger plan announced in late 2025 called for Rosales to lead the combined credit union, with Wasson to continue in a consulting role before retiring later in the year.
CommonWealth One was founded in 1944 as Army Air Force Annex #1 Federal Credit Union. Arlington Community Federal Credit Union was founded in 1951.
The combined credit union will operate a dozen branches and have more than $1 billion in assets. In addition to Northern Virginia and the District of Columbia, it also will serve the Harrisburg, Pa., area.
Consolidation is a relatively routine occurrence in the industry, with about 3% of credit unions merging each year, according to CU Collaborate, a data and analytics firm tracking the industry.
The number of federally chartered credit unions has fallen from about 20,000 in the mid 20th century to about 4,600 by the end of 2025 owing to successive waves of consolidation, according to CU Collaborate.
