Credit Union Routing Number
1st Northern California Credit Union Routing Number
The routing number for 1st Northern California Credit Union is 321173182. It is a credit union in Martinez, California, NCUA charter 68668.
Data as of · size and membership from the NCUA 5300 call report. How we update
About 1st Northern California Credit Union
1st Northern California Credit Union is based in Martinez, California, and has been chartered since 1949. It reported $829.0M in assets for Q2 2026, the 76th largest of 239 credit unions headquartered in California and 546th of 4,252 nationally. Assets were $788.7M a year earlier (Q2 2025), so the credit union is larger now. It counted 32,174 members on that report. The NCUA lists 6 branch locations for the credit union.
Record
- Routing number
- 321173182
- NCUA charter number
- 68668
- RSSD ID
- 11387
- Headquarters
- Martinez, California 94553
- Chartered
- 1949
- NCUA insured since
- January 4, 1971
- Total assets (Q2 2026)
- $829.0M
- Members (Q2 2026)
- 32,174
- Branch locations
- 6
- Routing record refreshed
- October 8, 2026
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Regulator records: NCUA credit union profile (charter 68668) · FFIEC NIC profile (RSSD 11387)