Average weekday transit ridership by year in San Diego County. Averages cover Winter/Spring service for Metropolitan Transit System (MTS) and Spring/Summer service for North County Transit District (NCTD).

Average daily (weekday) ridership by year. Average calculated over January service period for Metropolitan Transit System (MTS) routes and April service period for North County Transit District (NCTD) routes. Data collected through Automated Passenger Counters (APC's).

Average Weekday Boardings on the regions rail and light rail transit services going back annually from 2014 to 2023.