Demo City · Open Data
See your city clearly.
Explore the data that shapes where you live — transit, environment, budget, and city services.
Transit demand over time
bus and rail boardings · up 55.2% over the period; peak 1185.4k on 9 Oct
Jun 10, 2020 – Nov 30, 2025 · 61 daily records
Featured datasets
311 service requests
Resident service requests — potholes, graffiti, noise complaints, and more — with location, type, and resolution status.
City budget & expenditure
Budget ordinance appropriations by department, fund, and account for the 2023 fiscal year.
Air quality monitoring
Daily PM2.5, NO2, and other air quality readings from monitoring stations across the city.
Public transit ridership
Daily boardings across the city transit network, covering bus and rail since 2018.
Civic context
Featured stories
What 311 requests say about everyday city needs
Using resident service requests to understand recurring civic demand
Where the city budget puts its weight
A quick look at the departments carrying the largest appropriations
What air sensors reveal about daily conditions
Reading PM2.5 patterns across Demo City monitoring stations
Tools
More ways to use the portal
Request new civic datasets or connect directly through the API to build dashboards, services, and local analysis workflows.
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Send a request and let the data team know what information would be most useful to publish next.
Request dataBuild with the portal API
Use the API documentation to connect apps, civic dashboards, and repeatable workflows directly to portal data.
Open API docs