ACS Educational Attainment by Race and Sex Centroids

Overview This feature service provides centroid-based geographic layers for American Community Survey educational attainment indicators for the population age 25 years and over. It combines statewide, countywide, and census tract representations to support mapping and analysis of educational attainment across race and sex categories. Feature Layers State: State-level centroid features summarizing educational attainment measures for the population age 25 years and over, including overall attainment and race-specific breakdowns such as Black or African American, American Indian and Alaska Native, Asian, Native Hawaiian and Other Pacific Islander, Some Other Race, Two or More Races, White alone not Hispanic or Latino, and Hispanic or Latino. County: County-level centroid features with the same educational attainment measures, supporting county comparisons and regional demographic analysis. Tract: Census tract centroid features with detailed educational attainment indicators, enabling localized spatial analysis of educational patterns within communities. Geographic Coverage The service covers geographies across the United States, including states, counties, and census tracts. It is suited for national and subnational demographic mapping and comparison. Use Cases Mapping educational attainment by race and sex Comparing bachelor’s degree attainment and less-than-high-school completion across geographies Supporting demographic equity, planning, and community analysis Building thematic maps and dashboards for ACS-based educational indicators The layers expose American Community Survey estimates and margins of error, making the service useful for statistical analysis and cartographic display in ArcGIS applications.概述 本要素服务面向25岁及以上人口的美国社区调查（American Community Survey, ACS）教育程度指标提供基于质心的地理图层。该服务整合了州级、县级以及普查区（census tract）的地理表现形式，用于支撑针对不同种族与性别分类下的教育程度制图与分析。 要素图层 州级图层：针对25岁及以上人口的教育程度指标进行汇总的州级质心要素，涵盖整体教育程度以及按种族细分的统计结果，包括黑人或非裔美国人、美洲印第安人及阿拉斯加原住民、亚裔、夏威夷原住民及其他太平洋岛民、其他单一种族、多种族、非西班牙裔/拉丁裔白人以及西班牙裔/拉丁裔群体。 县级图层：包含相同教育程度指标的县级质心要素，可用于县级对比与区域人口统计分析。 普查区图层：搭载详细教育程度指标的普查区质心要素，支持社区内部教育模式的本地化空间分析。 地理覆盖范围 本服务覆盖美国全境的地理单元，包括州、县以及普查区，适用于国家级及次国家级人口制图与对比分析。 应用场景 - 按种族与性别分类绘制教育程度分布地图 - 对比不同地理区域的学士学位获得率与高中未完成率 - 支撑人口公平、规划及社区分析工作 - 基于美国社区调查（American Community Survey, ACS）的教育程度指标构建专题地图与仪表盘 - 该图层提供美国社区调查的估算值与误差边际，可用于ArcGIS应用中的统计分析与制图展示。