ACH Transfer
ACH (Automatic Clearing House)
Takes 1–3 business days through a central network.
Generally low-cost or free.
Ideal for routine, non-urgent transactions
WESTAMERICA BANK Routing Number in CA is 121140218
| Routing Number | Bank | Address | City | State | Zip Code |
121140218 | WESTAMERICA BANK | PO BOX 1200 | SUISUN CITY | CA | 94585 |
| Routing Number | |
121140218 | |
| Bank | |
WESTAMERICA BANK | |
| Address | |
PO BOX 1200 | |
| City | |
SUISUN CITY | |
| State | Zip Code |
CA | 94585 |
ACH vs Wire Transfer
Transfer Support
ACH and wire transfers use different processing networks and may require different routing numbers.
Wire Transfer
Wire Transfers
Completed instantly or within a business day across banks.
Comes with fees ranging from $15 to $50.
Ideal for urgent or global transactions ACH can't handle.
Where to find your routing number
Check or statement
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Online banking
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On this website
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Fedwire
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FAQs
Interactive calculators to understand the numbers behind your startup.
No, securities-based portfolios do not have FDIC insurance.
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