{"id":769114,"date":"2025-10-28T19:49:04","date_gmt":"2025-10-29T02:49:04","guid":{"rendered":"https:\/\/www.esri.com\/about\/newsroom\/?post_type=arcnews&#038;p=769114"},"modified":"2025-10-28T19:49:04","modified_gmt":"2025-10-29T02:49:04","slug":"how-modern-gis-technology-delivers-key-global-demographic-data-fast","status":"publish","type":"arcnews","link":"https:\/\/www.esri.com\/about\/newsroom\/arcnews\/how-modern-gis-technology-delivers-key-global-demographic-data-fast","title":{"rendered":"How Modern GIS Technology Delivers Key Global Demographic Data Fast"},"author":5752,"featured_media":0,"menu_order":0,"template":"","format":"standard","meta":{"_acf_changed":false,"sync_status":"","episode_type":"","audio_file":"","podmotor_file_id":"","podmotor_episode_id":"","castos_file_data":"","cover_image":"","cover_image_id":"","duration":"","filesize":"","filesize_raw":"","date_recorded":"","explicit":"","block":"","itunes_episode_number":"","itunes_title":"","itunes_season_number":"","itunes_episode_type":"","_links_to":"","_links_to_target":""},"categories":[280592,472991,91],"tags":[320072,11272,277582,279282,341422],"arcnews_issues":[493219],"class_list":["post-769114","arcnews","type-arcnews","status-publish","format-standard","hentry","category-demography","category-gis","category-mapping","tag-census-data","tag-demographics","tag-population","tag-technology-2","tag-us-census","arcnews_issues-fall-2025","arcnews_sections-your-work"],"acf":{"short_description":"The US Census Bureau\u2019s International Database is a vital resource for global demographic trends\u2014and it employs the latest GIS technology.","pdf":{"host_remotely":false,"file":"","file_url":""},"flexible_content":[{"acf_fc_layout":"content","content":"The United States Census Bureau\u2019s International Database (IDB) is a vital resource for understanding global demographic trends. Built in 2009, this interactive demographic data visualization tool provides comprehensive population estimates and projections for 227 countries and nearly 17,000 subnational areas worldwide.\r\n\r\nMaking regular updates to the IDB is essential to ensure that users have access to the most current and accurate data on ever-changing global population characteristics. Early on, the tool pulled from various technologies, but in 2011, Esri partner The Coleman Group, Inc. was brought in to provide technical assistance and contribute to the IDB\u2019s evolution. Since then, the experienced federal government contractor has collaborated with the Census Bureau to integrate the latest developments in apps and Esri technology, creating robust analytical tools for the IDB\u2019s international audience."},{"acf_fc_layout":"image","image":769115,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"<h2>Understanding Global Demographic Data<\/h2>\r\nGlobal demographic data is essential for understanding the world. The data provides critical insight into population trends, age distributions, migration patterns, and more\u2014empowering policymakers, economists, and public health officials to make informed decisions."},{"acf_fc_layout":"sidebar","layout":"standard","image_reference":null,"image_reference_figure":"","spotlight_image":null,"section_title":"","spotlight_name":"","position":"Right","content":"Any views expressed in this article\u2014including those related to the applicability of the described methodology and the qualifications or characteristics of The Coleman Group and its contractors\u2014are solely those of the author and do not necessarily reflect the views of the US Census Bureau or the US government.","snippet":""},{"acf_fc_layout":"content","content":"Both the US Census Bureau and the United Nations estimate and project global population figures. Since the 1960s, the Census Bureau has provided data for more than 200 countries, and recently, it expanded its projections to include subnational areas equivalent to counties in the United States. Detailed population estimates and forecasts by age and sex for 2015\u20132030, along with national projections extending to 2100, can be accessed through the IDB on the Census Bureau\u2019s website.\r\n\r\nUsing such detailed and wide-ranging demographic data can be challenging, though. It requires reliable data sources and practical analytical tools. Moreover, to present audiences with engaging and valuable narratives based on the data, analysts need a suitable technical framework and appropriate, modern tools.\r\n\r\nThis is what the IDB ultimately provides. For the past 14 years, app developers and GIS professionals from The Coleman Group have collaborated closely with Census Bureau staff to develop and enhance the configurable platform, ensuring that it delivers useful data products to the public. ArcGIS Pro, ArcGIS Enterprise, ArcGIS Online, and other technologies are key to fulfilling this mission for the Census Bureau and achieving its data dissemination goals."},{"acf_fc_layout":"image","image":769116,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"<h2>Making Data Delivery Efficient<\/h2>\r\nTo meet rising demand for accurate and timely data delivery, the IDB needs continuous improvement. Over the years, The Coleman Group and the Census Bureau have used various technologies\u2014from standalone databases, ArcGIS Viewer for Flex, and Adobe Flash to ArcGIS Online, ArcGIS Enterprise, and ArcGIS Pro.\r\n\r\nA recent iteration of the configurable platform employed the Esri Leaflet plug-in to ingest and display maps from ArcGIS Server, the back-end server software component of ArcGIS Enterprise that makes the Census Bureau\u2019s geographic information available. Initially, the team created map services by merging demographic data with a world feature layer polygon and publishing a Web Map Service from the ArcGIS Pro environment. While this was effective, the process was time-consuming and complex, involving multiple data deliveries and joins with the polygon. A more efficient method was needed to create map services with each data delivery update.\r\n\r\nThe teams found a solution in implementing the Census Bureau\u2019s Census Data API, vector tile services, ArcGIS Maps SDK for JavaScript, and ArcGIS Arcade."},{"acf_fc_layout":"image","image":769117,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"<h2>Enhancing Map Service Performance<\/h2>\r\nTeam members from The Coleman Group identified the Census Data API as a viable solution for data delivery. Using the API as a single data source increased efficiency by reducing the number of required data deliveries and improving data integrity. They could use already published feature layers without data, programmatically join the API data, and style features on the client side.\r\n\r\nWhile using the Census Data API addressed several data delivery issues, it negatively impacted map service performance. This was due to the size and detail of the hierarchical geographic boundaries that define political or administrative regions across the globe.\r\n\r\nThese boundaries are typically organized into levels, each representing a different scale of administrative division. The detail in the countrywide boundaries\u2014administrative level 0\u2014hindered Web Map Service performance at various zoom levels. Additionally, the boundaries for subnational geographies such as states and counties\u2014administrative levels 1\u20134\u2014were created with similar precision and detail. This meant that boundary generalization wasn\u2019t an option because it would have caused the boundaries to become misaligned.\r\n\r\nTo remedy this, the team chose vector tile services for map service delivery. Vector tiles are small, performative, and fast to load, allowing users to smoothly zoom and scale boundary outlines without losing detail. The Coleman Group also selected JavaScript Maps SDK to build the app to enhance its performance and functionality."},{"acf_fc_layout":"image","image":769118,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"<h2>Implementing Multiscale Vector Tiles<\/h2>\r\nThe Census Bureau\u2019s International Population Division uses the Large Scale International Boundaries dataset from the US Department of State as the basis for its country layers, which incorporate subnational geography. The team from The Coleman Group prepared and improved map service performance by creating the world country layer as a custom vector basemap. This map service, which features US government-approved names included in JavaScript Object Notation (JSON) files, allows for dynamic styling and zooming into selected areas without redownloading the entire layer.\r\n\r\nThe vector tile service performed very well. However, as users zoomed in, the remaining Web Map Service\u2013based administrative levels rendered slowly. So the team decided to create multiscale vector tiles that dynamically adjust to all zoom levels.\r\n\r\nAt first, the server couldn\u2019t complete the map rendering process. Detailed administrative boundaries were the source of the issue. The overlapping country boundaries consumed excessive server resources, which slowed down the map service. Because generalizing the boundaries would\u2019ve caused misalignment among administrative levels, the team used the Remove Overlap tool in ArcGIS Pro to create a single shared boundary for the various administrative levels. The boundary was then published as a vector tile service."},{"acf_fc_layout":"gallery","gallery_images":[769119,769120]},{"acf_fc_layout":"content","content":"<h2>Rendering Subnational Data Smoothly<\/h2>\r\nData is not stored in the vector tiles. Instead, the team associated geometries with country identifiers by creating a unique style layer for each country and putting the country identifiers in the layer attributes. A transparent layer overlaid the vector tile layer, allowing the team to utilize pop-ups from JavaScript Maps SDK to show the country name and data value. Arcade expressions, Esri\u2019s lightweight scripting language, supplied the information.\r\n\r\nWhen a user selects a data measure for subnational areas\u2014such as population, youth or old-age dependency ratios, or the sex ratio of the population\u2014the map server loads four image layers corresponding to each administrative level. Since the API does not provide subnational data for every country, the app ingests the available information, and the map server renders it using the manual breaks provided.\r\n\r\nBy default, these layers are visible at progressively higher zoom levels. Once a layer is displayed, it remains visible even when overlapped by another layer while zooming. This functionality offers two advantages. First, at the highest zoom levels, users can view the most detailed subnational maps available for a country, which may correspond to administrative levels 2, 3, or 4, depending on the location. Second, when a pop-up appears, all layers are included, meaning that if a user is viewing administrative level 4, they will also see levels 3 and 2. Additionally, The Coleman Group provided tools to turn off this dynamic subnational layering, allowing users to constrain it to a specific level."},{"acf_fc_layout":"image","image":769121,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"<h2>Embracing Emerging Technologies<\/h2>\r\nWhile the IDB may not be the first app to use vector tile services, the team from The Coleman Group is confident that the processes it implemented with the US Census Bureau can be replicated for similar public and private projects.\r\n\r\nMany technologies go into building apps that can respond and adapt to technological advances, and it is imperative to evaluate new and upcoming technologies to create workflows that generate modern apps and keep them consistently updated. With the rise of AI, for example, The Coleman Group has initiated an in-house project to help team members enhance their knowledge and skills in this area. The company also recently partnered with several private firms to launch an AI initiative to transform how health-related data gets analyzed and can generate actionable insight. The next step for The Coleman Group is to integrate AI into its app development process alongside GIS technology to enhance data analytics and address its clients\u2019 various areas of interest."},{"acf_fc_layout":"sidebar","layout":"standard","image_reference":null,"image_reference_figure":"","spotlight_image":null,"section_title":"","spotlight_name":"","position":"Center","content":"A special thanks to Dr. Belinda Coleman, president and CEO of The Coleman Group, and the US Census Bureau\u2019s Dissemination and Internet Services Branch and International Population Division for their contributions to this article.","snippet":""}],"references":null},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.9 (Yoast SEO v25.9) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How Modern GIS Technology Delivers Key Global Demographic Data Fast | Fall 2025 | ArcNews<\/title>\n<meta name=\"description\" content=\"The US Census Bureau\u2019s International 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