Westamerica Bancorporation revenue for the last year amounted to 325.19 M USD, the most of which — 323.64 M USD — came from its highest performing source at the moment, Banking and Related Activities, the year earlier bringing 264.95 M USD. The greatest contribution to the revenue figure was made by United States — last year it brought Westamerica Bancorporation 323.64 M USD, and the year before that — 264.95 M USD.