The service mailed questionnaires to almond nurseries in California, and responses were received from eight of 10 operations.
Those responded reported selling a total of at least 8.3 million almond trees since July 1, 2013.
That's a 25 percent increase from those sold a year earlier.
Of those sold during the past year, 72 percent went to new plantings, 24 percent to replanting existing orchards and 4 percent to resetting lost trees.
Based on an average planting of 125 trees per acre, based on information obtained from the service's almond acreage survey, the service calculated that almond 67,000 acres were planted since mid-2013.
Of that, 26,000 acres were planted to Nonpareils, the most widely planted variety.
The latest data brings the state's total almond acreage up to 860,000 bearing acres in 2014, according to the report.
Production for this season is estimated to be 2.1 billion pounds.