Credit Union Routing Number
Mid-Atlantic Federal Credit Union Routing Number
The routing number for Mid-Atlantic Federal Credit Union is 255077477. It is a credit union in Germantown, Maryland, NCUA charter 18716.
Data as of · size and membership from the NCUA 5300 call report. How we update
About Mid-Atlantic Federal Credit Union
Mid-Atlantic Federal Credit Union is based in Germantown, Maryland, and has been chartered since 1968. It reported $443.4M in assets for Q2 2026, the 20th largest of 58 credit unions headquartered in Maryland and 812th of 4,252 nationally. Assets were $442.2M a year earlier (Q2 2025), so the credit union is larger now. It counted 17,595 members on that report. The NCUA lists 4 branch locations for the credit union.
Record
- Routing number
- 255077477
- NCUA charter number
- 18716
- RSSD ID
- 767787
- Headquarters
- Germantown, Maryland 20874
- Chartered
- 1968
- NCUA insured since
- January 3, 1972
- Total assets (Q2 2026)
- $443.4M
- Members (Q2 2026)
- 17,595
- Branch locations
- 4
- Routing record refreshed
- October 8, 2026
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View Mid-Atlantic Federal Credit Union's full profile →
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Regulator records: NCUA credit union profile (charter 18716) · FFIEC NIC profile (RSSD 767787)