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Thank you for creating applications and mash-ups using King County Metro Transit data. We're working to expand our resources and make them easier to use.

General Transit Feed Specification (GTFS)

Our data is available in the General Transit Feed Specification (GTFS). This dataset includes all King County Metro bus, Seattle Streetcar and King County Water Taxi service as well as Sound Transit Link light rail service and some but not all Sound Transit Express Regional bus service. This data defines King County Metro Transit service and includes but is not limited to schedule and associated geographic data.

To access Metro's GTFS files, you must first read and agree to the King County Transit Data Terms of Use.

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Frequently asked questions

You will find our Transit data in the General Transit Feed Specification (GTFS). This dataset includes all King County Metro bus, Seattle Streetcar and King County Water Taxi service as well as Sound Transit Link light rail service and some but not all Sound Transit Regional Express bus service. This data defines King County Metro Transit service and includes but is not limited to schedule and associated geographic data.

King County Transit has three service periods per year that change in February, June and September. Within each of the three major service periods we may make minor alterations and fine-tune our service and data every other week. Minor alterations on that schedule usually happen throughout the first half of the major service period and then taper off and cease in the final half.

Typically the data for a future service period is ready for publication about four weeks ahead of the service change date. Because each major change in Transit service is different from the past, we occasionally need to adjust the timeline to account for these variations.

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To access Metro's feed, you must first read and agree to King County Transit Data Terms of Use.

The Transit data provided in this feed is provided for your use free of charge.

No.  You cannot sell this data. But you are free to use this data in applications you would like to sell and charge users for the application.

Please tell us about any inconsistencies or problems with our data by e-mailing us at PublicTransitData@kingcounty.gov.

Does it use our data?  Does it work?  If so, e-mail us at PublicTransitData@kingcounty.gov with a link and brief description.


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