Rastr is a German demographic data API that connects addresses and coordinates with demographic context. It combines German geocoding with optional Census enrichment for use in your own applications and analysis. Its focus is demographic data enrichment for location records in Germany.
Forward and reverse geocoding return location information from German addresses or coordinates. Optional Census enrichment adds population, age bands, marital status, and average household size to the same response, bringing location lookup and demographic fields into one documented API workflow.
The demographic values describe the geographic cell associated with a location, not an individual building or household. They provide residential context, not measurements of footfall, advertising audiences, or catchment areas.
Zensus 2022 is the official Census baseline. Modeled updates are estimates, not new official observations. Documentation explains dataset periods, estimate information, and methodology. Missing or suppressed values must not be interpreted as zero.
Use this context alongside other evidence in location-based research, property and retail analysis, planning, or marketing analysis. Users remain responsible for interpretation, quality checks, and final decisions. Rastr does not provide property valuations or individual profiles.
Developers can integrate the API into applications and data workflows. Analysts can evaluate the data through a manually prepared CSV pilot before integration. Explore the API documentation and data methodology at rastr.eu to assess whether the fields and geographic units fit your project.
