Locales 2024

This data layer produced by the National Center for Education Statistics’ (NCES) Education Demographic and Geographic Estimates (EDGE) program provides a geographic locale framework that classifies all U.S. territory into twelve categories ranging from Large Cities to Remote Rural areas. NCES uses this framework to describe the type of geographic area where schools and school districts are located. The criteria for these classifications are defined by NCES, and rely on standard geographic areas developed and maintained by the U.S. Census Bureau. The NCES Locale boundaries are based on geographic areas represented in Census TIGER/Line. For more information about the NCES locale framework, and to download the data, see: https://nces.ed.gov/programs/edge/Geographic/LocaleBoundaries. The classifications include: City – Large (11): Territory inside an urban area with population of 50,000 or more and inside a principal city with population of 250,000 or more. City – Midsize (12): Territory inside an urban area with population of 50,000 or more and inside a principal city with population less than 250,000 and greater than or equal to 100,000. City – Small (13): Territory inside an urban area with population of 50,000 or more and inside a principal city with population less than 100,000. Suburban – Large (21): Territory outside a principal city and inside an urban area with population of 250,000 or more. Suburban – Midsize (22): Territory outside a principal city and inside an urban area with population less than 250,000 and greater than or equal to 100,000. Suburban – Small (23): Territory outside a principal city and inside an urban area with population less than 100,000 and greater than or equal to 50,000. Town – Fringe (31): Territory inside an urban area with population less than 50,000 that is less than or equal to 10 miles from an urban area with population of 50,000 or more. Town – Distant (32): Territory inside an urban area with population less than 50,000 that is more than 10 miles and less than or equal to 35 miles from an urban area with population of 50,000 or more. Town – Remote (33): Territory inside an urban area with population less than 50,000 that is more than 35 miles from an urban area with population of 50,000 or more. Rural – Fringe (41): Territory outside an urban area that is less than or equal to 5 miles from an urban area with population of 50,000 or more, as well as territory outside an urban area that is less than or equal to 2.5 miles from an urban area with population less than 50,000. Rural – Distant (42): Territory outside an urban area that is more than 5 miles but less than or equal to 25 miles from an urban area with population of 50,000 or more, as well as territory outside an urban area that is more than 2.5 miles but less than or equal to 10 miles from an urban area with population less than 50,000. Rural – Remote (43): Territory outside an urban area that is more than 25 miles from an urban area with population of 50,000 or more and is also more than 10 miles from an urban area with population less than 50,000. All information contained in this file is in the public domain. Data users are advised to review NCES program documentation and feature class metadata to understand the limitations and appropriate use of these data.本数据集由美国国家教育统计中心（National Center for Education Statistics, NCES）教育人口与地理估计（Education Demographic and Geographic Estimates, EDGE）项目生成，提供一套地理区位分类框架，可将美国全部领土划分为12类地理区域，覆盖范畴从大型城市至偏远乡村地区。NCES依托该框架描述学校及学区所在的地理区域类型。 该分类规则由NCES制定，其划定依托美国人口普查局开发并维护的标准地理区域。NCES地理区位边界基于美国人口普查局TIGER/Line（Census TIGER/Line）地理区域生成。 如需了解更多NCES地理区位框架相关信息并下载本数据集，请访问：https://nces.ed.gov/programs/edge/Geographic/LocaleBoundaries。 该数据集包含的12类地理区域分类标准如下： 1. 大型城市（City – Large，代码11）：位于人口≥50000的都市区内，且属于人口≥250000的核心城市的区域。 2. 中型城市（City – Midsize，代码12）：位于人口≥50000的都市区内，且属于人口介于100000（含）至250000之间的核心城市的区域。 3. 小型城市（City – Small，代码13）：位于人口≥50000的都市区内，且属于人口＜100000的核心城市的区域。 4. 大型郊区（Suburban – Large，代码21）：位于核心城市之外，且属于人口≥250000的都市区内的区域。 5. 中型郊区（Suburban – Midsize，代码22）：位于核心城市之外，且属于人口介于100000（含）至250000之间的都市区内的区域。 6. 小型郊区（Suburban – Small，代码23）：位于核心城市之外，且属于人口介于50000（含）至100000之间的都市区内的区域。 7. 边缘城镇（Town – Fringe，代码31）：位于人口＜50000的都市区内，且与人口≥50000的都市区距离≤10英里的区域。 8. 偏远城镇（Town – Distant，代码32）：位于人口＜50000的都市区内，且与人口≥50000的都市区距离介于10英里（不含）至35英里（含）之间的区域。 9. 极偏远城镇（Town – Remote，代码33）：位于人口＜50000的都市区内，且与人口≥50000的都市区距离＞35英里的区域。 10. 边缘乡村（Rural – Fringe，代码41）：包含两类区域：一是位于人口≥50000的都市区之外且与该都市区距离≤5英里的区域；二是位于人口＜50000的都市区之外且与该都市区距离≤2.5英里的区域。 11. 偏远乡村（Rural – Distant，代码42）：包含两类区域：一是位于人口≥50000的都市区之外且与该都市区距离介于5英里（不含）至25英里（含）之间的区域；二是位于人口＜50000的都市区之外且与该都市区距离介于2.5英里（不含）至10英里（含）之间的区域。 12. 极偏远乡村（Rural – Remote，代码43）：位于人口≥50000的都市区之外且与该都市区距离＞25英里，同时位于人口＜50000的都市区之外且与该都市区距离＞10英里的区域。 本文件包含的所有信息均属于公共领域。建议数据使用者查阅NCES项目文档及要素类元数据，以了解该数据集的局限性及合理使用方式。