The Sangamon Mass Transit District (SMTD) is a regional mass transit district that mostly serves Springfield, Illinois along with a few neighboring communities. It is governed by a seven-member board of trustees, who are all appointed by the Sangamon County Board of Supervisors. In 2021, the system had a ridership of 1,005,000, or about 4,000 per weekday as of the second quarter of 2022.