Clatsop County Oregon Court in Circuit Court Municipal Courts Circuit Courts in Clatsop County Clatsop County Circuit CourtClatsop County Courthouse749 Commercial Street, PO Box 835, Astoria, OR 97103Phone: 503-325-8555 Municipal Courts in Clatsop County Astoria Municipal Court1095 Duane Street, Astoria, OR 97103Phone: 503-325-3939Fax: 503-338-6630 Cannon Beach Municipal Court163 East Gower Street, PO Box 368, Cannon Beach, OR 97110Phone: 503-436-2046Fax: 800-516-7821 Gearhart Municipal Court698 Pacific Way, PO Box 2510, Gearhart, OR 97138Phone: 503-738-5501 Seaside Municipal Court989 Broadway, Seaside, OR 97138Phone: 503-738-5511Fax: 503-738-5514