Data enrichment creates polygon features with demographic, business, economic, or landscape attributes that describe the people living in the area each polygon represents. ArcGIS uses a granular point dataset as the basis for enriching these polygons with a variety of available variables. These points represent the locations where people live.
Where people live is the best basis to allocate demographic and economic variables because people spend their money from their homes usually for the benefit of those living there. Esri makes data from many providers available through data enrichment in 137 countries.
The illustration below shows the results when a polygon representing a 1-kilometer ring around a store's location is enriched and variables are used to describe the people living in that ring. The points representing where people live within the ring are selected, as are detailed polygons representing census or postal code geographies. The selected polygons have attributes for all variables available. From these selected features, the proper proportions of each variable selected are apportioned to the ring.
Learn how the ArcGIS data apportionment works to create this data.
While enrichment is available in many countries, the data sources for the points and enrichment variables vary by country. Some countries, such as the United States, Japan, Australia, the Netherlands, and Canada, include variables that describe, in detail, demographic characteristics and economic behaviors of their citizens. Other countries have fewer variables based on coarser census or postal code geographies. Consequently, the reliability of results varies by country and sometimes by location within countries. In the results of each enrichment operation, the metadata includes reliability statistics for each country, with ratings from 1.0 to 5.0, where 1.0 is the best.
Learn about apportionment reliability.
Enrichment is available through the ArcGIS GeoEnrichment Service, which is used by the Enrich Layer tools in ArcGIS Online, ArcGIS Pro, ArcGIS Insights, ArcGIS Business Analyst, and other ArcGIS applications. The GeoEnrichment Service is also available in ArcGIS REST API, allowing application programmers to embed enrichment in their applications.