School District Composites SY 2013-14 TL 14

The National Center for Education Statistics’ (NCES) Education Demographic and Geographic Estimate (EDGE) program develops annually updated school district boundary composite files that include public elementary, secondary, and unified school district boundaries clipped to the U.S. shoreline. School districts are single-purpose administrative units designed by state and local officials to organize and provide public education for local residents. District boundaries are collected for NCES by the U.S. Census Bureau to support educational research and program administration, and the boundaries are essential for constructing district-level estimates of the number of children in poverty. The Census Bureau’s School District Boundary Review program (SDRP) (https://www.census.gov/programs-surveys/sdrp.html) obtains the boundaries, names, and grade ranges from state officials, and integrates these updates into Census TIGER. Census TIGER boundaries include legal maritime buffers for coastal areas by default, but the NCES composite file removes these buffers to facilitate broader use and cleaner cartographic representation. The NCES EDGE program collaborates with the U.S. Census Bureau’s Education Demographic, Geographic, and Economic Statistics (EDGE) Branch to develop the composite school district files. The inputs for this data layer were developed from Census TIGER/Line 2014 and represent boundaries reported for the 2013-2014 school year. For more information about NCES school district boundary data, see https://nces.ed.gov/programs/edge/Geographic/DistrictBoundaries.美国国家教育统计中心（National Center for Education Statistics，NCES）的教育人口与地理估算（Education Demographic and Geographic Estimate，EDGE）项目每年编制更新学区边界综合文件，该文件包含经美国海岸线裁剪的公立小学、中学及联合学区边界。学区是由州与地方官员设立的单一职能行政单位，用于组织并为当地居民提供公共教育服务。NCES的学区边界数据由美国人口普查局采集，旨在支撑教育研究与项目管理工作，此类边界数据对于构建学区层面的贫困儿童数量估算至关重要。美国人口普查局学区边界审查项目（School District Boundary Review Program，SDRP，网址：https://www.census.gov/programs-surveys/sdrp.html）从各州官方获取学区边界、名称及学段范围，并将此类更新整合至人口普查TIGER（Census TIGER）地理数据库。人口普查TIGER边界默认包含沿海地区的法定海事缓冲区，但NCES综合文件移除了这些缓冲区，以提升文件的通用性并实现更简洁的制图表达效果。NCES的EDGE项目与美国人口普查局教育人口、地理与经济统计分支（Education Demographic, Geographic, and Economic Statistics，EDGE）合作开发综合学区边界文件。该数据层的输入数据源自2014年版人口普查TIGER/Line文件，对应2013-2014学年报告的学区边界信息。如需了解NCES学区边界数据的更多详情，请访问https://nces.ed.gov/programs/edge/Geographic/DistrictBoundaries。