Contact

Questions about the data, a suspected error, a press inquiry, or general feedback — use the form below. Messages are delivered to the project maintainer directly. Expect a reply within a few days, or none if the message is a marketing pitch.

0 / 5,000 characters

Before writing

  • If you’re reporting a suspect number, please include the city, the metric, and the page URL so the issue can be reproduced.
  • For questions about how the data is sourced or computed, the methodology page covers most common ones.
  • Category-mapping questions usually have an answer on the service category mapping page.