Credit Union Routing Number
Sound Federal Credit Union Routing Number
The routing number for Sound Federal Credit Union is 221174391. It is a credit union in Stamford, Connecticut, NCUA charter 24705.
Data as of · size and membership from the NCUA 5300 call report. How we update
About Sound Federal Credit Union
Sound Federal Credit Union is based in Stamford, Connecticut, and has been chartered since 1953. It reported $115.5M in assets for Q2 2026, the 19th largest of 63 credit unions headquartered in Connecticut and 1699th of 4,252 nationally. Assets were $126.3M a year earlier (Q2 2025), so the credit union is smaller now. It counted 8,354 members on that report. The NCUA lists 3 branch locations for the credit union.
Record
- Routing number
- 221174391
- NCUA charter number
- 24705
- RSSD ID
- 680091
- Headquarters
- Stamford, Connecticut 06901
- Chartered
- 1953
- NCUA insured since
- July 1, 1982
- Total assets (Q2 2026)
- $115.5M
- Members (Q2 2026)
- 8,354
- Branch locations
- 3
- Routing record refreshed
- October 10, 2026
Routing numbers in Stamford, CT
- Bank
- First County Bank: 221172212
- Bank
- Patriot Bank, N.A.: 021112935
- Credit union
- Pitney Bowes Employees Federal Credit Union: 221174375
- Credit union
- Members Credit Union: 221174074
- Credit union
- Stamford Healthcare Credit Union, Inc.: 221183308
View Sound Federal Credit Union's full profile →
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Regulator records: NCUA credit union profile (charter 24705) · FFIEC NIC profile (RSSD 680091)