Wine sales in the United States, including California vintages, reached a record high last year, jumping 2% compared with 2011.
Sales totaled 360.1 million cases with an estimated retail value of $34.6 billion, according to the Wine Institute, a San Francisco trade group.
Sales of California wines accounted for 58% of the U.S. business. The Golden State shipped 250.2 million 9-liter cases, worth $22 billion, to U.S. and foreign customers.
"The U.S. is the largest wine market in the world, with 19 consecutive years of volume growth," Wine Institute President Robert P. Koch said.