1、Our 90-day active Starbucks Rewards member base, to whom we directly communicate and provide personalized offers, increased by 2.5 million members in Q1 to a record 21.8 million. Now, this result surpassed our pre-COVID member base, representing a 15% increase relative to the same quarter in prior year.
2、As the number of active Starbucks Rewards members grew during the quarter, so did their engagement. Rewards customers contributed 50% of U.S. company-operated sales in Q1, up from 43% last year before the onset of COVID-19, and up from 47% in the prior quarter, demonstrating our loyal customers' resilience and affinity for Starbucks.
3、We delivered an impressive positive 5% comparable store sales growth in Q1, but what is most remarkable about our recovery in China is the rapid reacceleration of new store development, which is our number one driver of growth in that market.
I'm pleased to share that in Q1; we opened almost 160 stores and crossed the 4,800 store milestone. That equates to 13% growth in net new stores over the last 12 months, which is particularly impressive considering that we suspended new store development activities for a couple of months at the onset of the pandemic in China.
4、We continue to dramatically expand digital customer relationships in China through the Starbucks Rewards program as evidenced by the number of 90-day active Rewards members growing to 15.4 million in Q1, a record increase of 51% versus the prior year and 14% over the previous quarter.
5、In fact, with Starbucks Now Mobile Order & Pay services available across 99% of our store base and with Starbucks Delivers in 85% of our store base in China, Mobile Order sales mix hit a record 30% of the company's China sales, up from 26% in the last quarter with 14% driven by Starbucks Delivers and 16% from Starbucks Now.
Rewards customer engagement continues to grow as mobile ordering has more than doubled in China over the past year. Starbucks remains Chinese consumers' first choice in the away-from-home coffee category and is the most talked about coffee brand on social media in China. The brand is stronger than ever in our fastest growing market.
这一季度，中国地区的移动订单占比30%，Starbucks Delivers占比14%，Starbucks Now占比16%。