Country information - Switzerland

General information for Switzerland, including naming conventions used and specific dataset characteristics.

  • Sources: The Swiss dataset is compiled from official sources, cantonal address services, and federal statistical offices, ensuring highly reliable and up-to-date address and postal code data.
  • Update frequency: Monthly, made available as download 1st day of the month. API refreshed during the month, possibly earlier than the 1st.
  • Switzerland uses strictly numeric four-digit postal codes, with approximately ~4,000 in use. Each code generally corresponds to a specific municipality, district, or neighborhood. For example, 5600 is the postal code for Lenzburg.

Details on data

  • Swiss addresses follow strict formatting conventions and casing rules, including proper use of umlauts and regional diacritics (e.g., Zürich, Fribourg, Lugano).
  • Due to Switzerland’s geographic diversity, postal codes may map to compact urban neighborhoods or larger rural areas, depending on population density and postal routing.