Datasets
The Helsinki districts dataset includes the boundary lines of the city districts, as well as the names and identifiers of the areas. The initial data for the maintenance of the city district dataset is the base map...
City of Helsinki's traffic routes (centreline data) contains digitised centrelines of pedestrian, cycling and vehicular traffic routes in Helsinki. They are classified according to the design guidelines for street and...
Helsinki Metropolitan Area (Helsinki, Espoo, Vantaa and Kauniainen) service register REST API. The interface offers possibilities to make queries and use the data in the Helsinki, Espoo, Vantaa and Kauniainen Service...
The regional address catalogue contains information about the addresses and place names of properties and plan units located in the area (so-called zero address). The information in the regional address catalogue is...
The locations of crossings with traffic lights in Helsinki, Espoo, Vantaa and Kauniainen. Data regarding Kauniainen is available as a file. Other cities' data is available through APIs: Data of Espoo:...
Interface (API) to the City of Helsinki feedback system. Feedback from all City departments is published through the API, and can be used for example by businesses and other actors. Currently (2025), only less than...
The database of addresses of Helsinki maintains information about the addresses and place names of properties and plan units located in the area of Helsinki. The street names and other names are in both Finnish and...
Note (10/2024): Due to updates, the API is currently not operational. In 2012, the City of Helsinki’s construction service Stara introduced an electronic production control system, which produces GPS location...
The numerot.hel.fi service provides an Internet interface for browsing and searching for telephone numbers of the City of Helsinki’s departments and municipal enterprises. The service is based on information extracted...
The Service Map developed by the City of Helsinki shows the locations and services offered by the cities of the Helsinki Metropolitan Area, as well as Vantaa and Kerava and Western Uusimaa Wellbeing areas. The map...
The Journey Planner) APIs offer data regarding routing, geocoding, map data and vehicle locations through several APIs. Routing API: Itinerary- and timetable-queries via either a GraphQL-API or a REST interface...
Data from the HelMet libraries’ catalogue in a machine-readable format. The data source contains the descriptions of approximately 680,000 books, records, sheet music publications and other materials found in the...