Locales 2023

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）教育人口与地理估算（Education Demographic and Geographic Estimates, EDGE）项目生成，提供一套地理区位分类框架，可将美国全境划分为12个类别，覆盖范围从大型城市直至偏远乡村区域。NCES依托该框架描述学校及学区所在的地理区域类型。 该分类体系的判定规则由NCES制定，其构建依托美国人口普查局开发并维护的标准地理区域。NCES区位边界基于美国人口普查局拓扑集成地理编码与参照线（Census TIGER/Line）所代表的地理区域进行划定。 如需了解更多NCES区位框架相关信息或下载该数据集，请访问：https://nces.ed.gov/programs/edge/Geographic/LocaleBoundaries。 该分类体系包含以下12类区域： 1. 大型城市（City – Large，代码11）：位于人口≥50000的都市区内，且处于人口≥250000的核心城市范围内的区域。 2. 中型城市（City – Midsize，代码12）：位于人口≥50000的都市区内，且处于人口介于100000（含）至250000之间的核心城市范围内的区域。 3. 小型城市（City – Small，代码13）：位于人口≥50000的都市区内，且处于人口<100000的核心城市范围内的区域。 4. 大型郊区（Suburban – Large，代码21）：处于核心城市范围之外，且位于人口≥250000的都市区内的区域。 5. 中型郊区（Suburban – Midsize，代码22）：处于核心城市范围之外，且位于人口介于100000（含）至250000之间的都市区内的区域。 6. 小型郊区（Suburban – Small，代码23）：处于核心城市范围之外，且位于人口介于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. 远郊城镇（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英里至35英里（含）之间的区域。 9. 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的都市区周边≤5英里的非都市区；二是位于人口<50000的都市区周边≤2.5英里的非都市区。 11. 远郊乡村（Rural – Distant，代码42）：包含两类区域：一是位于人口≥50000的都市区周边5英里至25英里（含）之间的非都市区；二是位于人口<50000的都市区周边2.5英里至10英里（含）之间的非都市区。 12. 偏远乡村（Rural – Remote，代码43）：同时满足以下两项条件的非都市区：与人口≥50000的都市区距离>25英里，且与人口<50000的都市区距离>10英里。 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，以充分了解该数据集的局限性与合理使用方式。