Respondents / eCensus

The structural survey questionnaire is targeted at randomly selected persons. It can be completed online or on paper.

Completing questionnaire online

You can fill out the online questionnaire on the smartphone, desktop/laptop or tablet devices. You can find your password and user name (=login) on your letter or, if you have received a paper questionnaire, on the form labelled personal questionnaire.

You can suspend the questionnaire at any time by clicking on 'Logout' and rejoin the questionnaire again later. The answers you have already given will be saved.

Before you start to complete the questionnaire, you are advised to have the following documents ready:

  • rental details - you will find the necessary information in your rental agreement
  • AHV insurance number (also for the other persons in your household) (AHV: Swiss old age and survivors' insurance) - you will find the AHV number on the health insurance card, on the AHV card or on a wage certificate.

Documentation on survey


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Infobanner COVID-19

Pandemic and statistical data collection

The current pandemic is affecting the entire country. In this difficult context and in order to measure the consequences, the FSO must continue to produce reliable statistical information for both the authorities and the public. We thank you in advance for your assistance should we contact you.


Our English pages offer only a limited range of information on our statistical production. For our full range please consult our pages in French and German (top right hand screen).