USDC latest circulation: 79.63 billion. () Figure 1 shows the USDC circulation over the past week, increasing from 78.35 billion to 79.63 billion. Figure 2 shows the change in USDC circulation over the past 24 hours, rising from 79.3 billion to 79.63 billion. If this trend continues, it is very likely to surpass 80 billion this week.