King County Metro ridership growth second highest among nation’s largest transit agencies

Crossposted from Metro Matters

Marking ongoing positive ridership growth, King County Metro posted a silver medal win among the 10 largest transit agencies nationwide.

Metro had an estimated 63 million boardings this year through Aug. 31, which is increase and 4.5 million higher than the same time last year. Comparing Aug. 2024 and 2025, we’re seeing about 5,000 more morning boardings, 6,600 more midday boardings and 9,500 more afternoon boardings on an average weekday.

A regional rising star is the RapidRide G Line. Although the new line only just celebrated its one-year anniversary, the G Line is already Metro’s 11th most frequently ridden route. Average weekday G Line boardings rose 86%, climbing from 3,600 in Sept. 2024 to 6,700 in Sept. 2025. Read more.