Which data is included

The proposed derived data has been obtained through a spatial disaggregation of statistics of the 2011 Census, collected from National Statistical Institutes. The results of the spatial processing of the original data is a uniform grid showing the concentration of migrants in cells of 100 by 100 m in all cities of eight EU MS (Spain, Germany, Italy, France, Netherlands, Portugal, UK, Ireland). The migrants are grouped at three different levels of aggregation: by specific country, continent, and EU versus third country origin. A detailed description of the data is provided in this technical report.

The data sets are organized in separate files for each country and aggregation level by origins. These files include the number of persons by origin in each grid cell.  Additional supporting files provide the necessary relational tables to relate grid cells to administrative units (local administrative units, functional urban area, NUTS 1, 2 and 3) and calculate aggregates or filter the data. A sample of such files can be downloaded here.

Already merged data for specific cities and NUTS3 areas will be available for download from a dedicated data visualization platform. The platform can be accessed in only visualization mode from here (see here instructions for the use of the platform).


Terms and Conditions for the use of data

The original data underlying the dataset provided by the European Commission in the context of the D4I challenge (hereinafter the 'Challenge'), is sourced from National Statistical Institutes and is therefore subject to any distribution policy and/or terms of use established thereto by the concerned National Statistical Institutes.

Under the scope of the Challenge, participants are granted the right to use only the derived data to calculate statistical indicators. The right to access the derived data is limited to the scope and duration of the Challenge. No right granted herein shall be construed as to allow participants to extract, redistribute, sell, sublicense, transfer or otherwise convey the original data sourced from the National Statistical Institutes to third-parties.

Participants retain full ownership and right in any intellectual property generated within their output including the faculty to publish their output works as they deem fit. Participants grant to the European Commission the explicit and unambiguous license to reproduce, copy, print and publish on both printed and electronic media their preliminary output work submitted in response to the Challenge, including but not limited to the aggregation and publication of said output in a book of proceedings.



The derived data provided does not include confidential figures. In addition to the thresholds applied by the National Statistical Institutes in their ad hoc extractions, all original data points presenting less than 5 persons for a given census tract and origin were filtered out.

The resulting grid level derived data presents estimated figures after spatial processing of the original Census statistics which do not correspond exactly the number of persons living in one specific place. For this same reason the cells often present number of persons below one and with decimals.

The statistical definition of migrants (by country of birth or nationality), the level of aggregation of the original census statistics and the confidentiality threshold applied by the National Statistical Institutes change from country to country therefore we invite the participants to read carefully the codebook before performing cross country comparisons.  

The derived data is provided "as is" without warranty of any kind, either express or implied, including, but not limited to, any implied warranty against infringement of third parties' property rights, of merchantability, integration, satisfactory quality and fitness for a particular purpose. The entire risk as to the quality and use of the derived data is with the participants. The European Commission will not be liable for any incidental, consequential, direct or indirect damages including but not limited to the loss of data, lost profits, or any other financial loss arising from the use of, or inability to use the maps outside of the scope of the Challenge, even if the European Commission has been notified of the possibility of such loss, damages, claims or costs or for any claim by any third party.