{"id":1544562,"date":"2022-04-07T16:22:04","date_gmt":"2022-04-07T23:22:04","guid":{"rendered":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&p=1544562"},"modified":"2022-04-07T16:22:04","modified_gmt":"2022-04-07T23:22:04","slug":"define-enumeration-areas-for-a-census-count","status":"publish","type":"blog","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/survey123\/field-mobility\/define-enumeration-areas-for-a-census-count","title":{"rendered":"Define enumeration areas for a census count"},"author":5651,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_searchwp_excluded":""},"categories":[23261,22851],"tags":[31361,764652,764642],"industry":[],"product":[36691],"class_list":["post-1544562","blog","type-blog","status-publish","format-standard","hentry","category-field-mobility","category-national-government","tag-census","tag-eas","tag-enumeration-areas","product-survey123"],"acf":{"short_description":"Create a pre-enumeration cartographic survey for defining or adjusting enumeration area boundaries.","flexible_content":[{"acf_fc_layout":"content","content":"

The pre-enumeration phase of a national census is a time of extensive planning and preparation. A key activity is to divide the work up into small areas of land, known as Enumeration Areas (EAs), sometime also known as Enumeration Districts (EDs), and to produce accurate maps of these EAs for use in the census enumeration process.<\/p>\n

EAs are the smallest statistical sample unit in a national census and are usually defined according to the number of households they contain. This number usually aligns with the number of households that a single staff member (enumerator) can visit and interview during the census enumeration period. Therefore, urban EAs usually have more households than rural EAs, as it\u2019s quicker to move between dwellings when they are closer together. The boundaries of an EA typically follow physical features (such as roads, rivers and fence lines), so that staff in the field can easily identify the limits of their area of interest.<\/p>\n

The UN recommends<\/a> each nation carries out a national census at least once every ten years. Most countries already have some form of digital EA map showing their boundaries and identification numbers. However, as people move and landscapes change over the years, the total number of households in each EA needs to be recounted and the boundaries checked ahead of each national census.<\/p>\n

To achieve this, a pre-enumeration cartographic survey can take place 1-2 years ahead of a national census with the following goals:<\/p>\n