Credit Union Routing Number
Nassau Financial Federal Credit Union Routing Number
The routing number for Nassau Financial Federal Credit Union is 221476688. It is a credit union in Westbury, New York, NCUA charter 1404.
Data as of · size and membership from the NCUA 5300 call report. How we update
About Nassau Financial Federal Credit Union
Nassau Financial Federal Credit Union is based in Westbury, New York, and has been chartered since 1936. It reported $334.4M in assets for Q2 2026, the 44th largest of 266 credit unions headquartered in New York and 980th of 4,252 nationally. Assets were $336.6M a year earlier (Q2 2025), so the credit union is smaller now. It counted 14,185 members on that report. The NCUA lists 6 branch locations for the credit union.
Record
- Routing number
- 221476688
- NCUA charter number
- 1404
- RSSD ID
- 500573
- Headquarters
- Westbury, New York 11590
- Chartered
- 1936
- NCUA insured since
- January 4, 1971
- Total assets (Q2 2026)
- $334.4M
- Members (Q2 2026)
- 14,185
- Branch locations
- 6
- Routing record refreshed
- October 10, 2026
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Regulator records: NCUA credit union profile (charter 1404) · FFIEC NIC profile (RSSD 500573)