HEALTH INSURANCE BY EMPLOYMENT STATUS (B27011)

Table from the American Community Survey (ACS) B27011 health insurance coverage status and type by employment status. These are multiple, nonoverlapping vintages of the 5-year ACS estimates of population and housing attributes starting in 2015 shown by the corresponding census tract vintage. Also includes the most recent release annually. King County, Washington census tracts with nonoverlapping vintages of the 5-year American Community Survey (ACS) estimates starting in 2010. Vintage identified in the "ACS Vintage" field. The census tract boundaries match the vintage of the ACS data (currently 2010 and 2020) so please note the geographic changes between the decades. Tracts have been coded as being within the City of Seattle as well as assigned to neighborhood groups called "Community Reporting Areas". These areas were created after the 2000 census to provide geographically consistent neighborhoods through time for reporting U.S. Census Bureau data. This is not an attempt to identify neighborhood boundaries as defined by neighborhoods themselves. Vintages: 2015, 2020, 2021, 2022, 2023, 2024 ACS Table(s): B27011 Data downloaded from: Census Bureau's Explore Census Data The United States Census Bureau's American Community Survey (ACS): About the Survey Geography & ACS Technical Documentation News & Updates This ready-to-use layer can be used within ArcGIS Pro, ArcGIS Online, its configurable apps, dashboards, Story Maps, custom apps, and mobile apps. Data can also be exported for offline workflows. Please cite the Census and ACS when using this data. Data Note from the Census: Data are based on a sample and are subject to sampling variability. The degree of uncertainty for an estimate arising from sampling variability is represented through the use of a margin of error. The value shown here is the 90 percent margin of error. The margin of error can be interpreted as providing a 90 percent probability that the interval defined by the estimate minus the margin of error and the estimate plus the margin of error (the lower and upper confidence bounds) contains the true value. In addition to sampling variability, the ACS estimates are subject to nonsampling error (for a discussion of nonsampling variability, see Accuracy of the Data). The effect of nonsampling error is not represented in these tables. Data Processing Notes: Boundaries come from the US Census TIGER geodatabases, specifically, the National Sub-State Geography Database (named tlgdb_(year)_a_us_substategeo.gdb). Boundaries are updated at the same time as the data updates (annually), and the boundary vintage appropriately matches the data vintage as specified by the Census. These are Census boundaries with water and/or coastlines erased for cartographic and mapping purposes. For census tracts, the water cutouts are derived from a subset of the 2020 Areal Hydrography boundaries offered by TIGER. Water bodies and rivers which are 50 million square meters or larger (mid to large sized water bodies) are erased from the tract level boundaries, as well as additional important features. For state and county boundaries, the water and coastlines are derived from the coastlines of the 2020 500k TIGER Cartographic Boundary Shapefiles. These are erased to more accurately portray the coastlines and Great Lakes. The original AWATER and ALAND fields are still available as attributes within the data table (units are square meters). The States layer contains 52 records - all US states, Washington D.C., and Puerto Rico Census tracts with no population that occur in areas of water, such as oceans, are removed from this data service (Census Tracts beginning with 99). Percentages and derived counts, and associated margins of error, are calculated values (that can be identified by the "_calc_" stub in the field name), and abide by the specifications defined by the American Community Survey. Field alias names were created based on the Table Shells file available from the American Community Survey Summary File Documentation page. Negative values (e.g., -4444...) have been set to null, with the exception of -5555... which has been set to zero. These negative values exist in the raw API data to indicate the following situations: The margin of error column indicates that either no sample observations or too few sample observations were available to compute a standard error and thus the margin of error. A statistical test is not appropriate. Either no sample observations or too few sample observations were available to compute an estimate, or a ratio of medians cannot be calculated because one or both of the median estimates falls in the lowest interval or upper interval of an open-ended distribution. The median falls in the lowest interval of an open-ended distribution, or in the upper interval of an open-ended distribution. A statistical test is not appropriate. The estimate is controlled. A statistical test for sampling variability is not appropriate. The data for this geographic area cannot be displayed because the number of sample cases is too small.本数据集源自美国社区调查（American Community Survey, ACS）B27011表，该表按就业状况分类呈现健康保险覆盖状态与保险类型。数据集包含多套互不重叠的2015年起的5年期ACS人口与住房属性估算数据，按对应普查区（census tract）版本进行标注，同时涵盖最新年度发布的数据集。华盛顿州金县（King County）的普查区数据采用2010年起的5年期ACS估算非重叠版本，版本信息存储于「ACS版本」字段中。普查区边界与ACS数据版本一一对应（当前包含2010与2020两个版本），请注意十年间的地理边界变化。普查区已被标记为西雅图市范围内的区域，并被划分至名为「社区报告区域（Community Reporting Areas）」的邻里群组中。该区域于2000年人口普查后设立，旨在构建长期地理一致的邻里单元，用于发布美国人口普查局的数据，而非用于界定由社区自行定义的邻里边界。 数据版本：2015、2020、2021、2022、2023、2024；ACS表号：B27011 数据下载自美国人口普查局「探索普查数据」平台 美国人口普查局美国社区调查（ACS）相关资源：调查概况、地理信息与ACS技术文档、新闻与更新 该即用型图层可在ArcGIS Pro、ArcGIS Online及其可配置应用、仪表盘、Story Maps（故事地图）、自定义应用与移动应用中使用，数据亦可导出用于离线工作流程。使用本数据时，请注明引用美国人口普查局与ACS。 人口普查局数据说明：本数据基于抽样调查，存在抽样变异性。由抽样变异性导致的估算不确定性程度通过边际误差（margin of error）体现，此处展示的为90%置信边际误差。边际误差可理解为：估算值减去边际误差与估算值加上边际误差所构成的区间（即置信上下限）有90%的概率包含真实数值。除抽样变异性外，ACS估算数据还存在非抽样误差（关于非抽样变异性的讨论，请参见《数据准确性》文档），但本数据表未体现非抽样误差的影响。 数据处理说明：地理边界源自美国人口普查局TIGER地理数据库，具体为国家级次州地理数据库（文件命名格式为tlgdb_(year)_a_us_substategeo.gdb）。边界随数据每年同步更新，且边界版本与普查局指定的数据版本完全匹配。为制图与绘图需求，已从普查边界中移除水体与/或海岸线。针对普查区，水体裁剪范围源自TIGER提供的2020年面状水文边界子集。面积5000万平方米及以上的大中型水体与河流，以及其他重要地物，均已从普查区边界中移除。针对州与县级边界，水体与海岸线源自2020年500k分辨率TIGER制图边界形状文件的海岸线数据，移除这些要素可更精准地呈现海岸线与五大湖区域。原始的AWATER与ALAND字段仍作为属性保留在数据表中，单位为平方米。州级图层包含52条记录，涵盖美国所有州、华盛顿哥伦比亚特区与波多黎各。位于海洋等水域区域的无人口普查区（编号以99开头）已从本数据服务中移除。百分比、衍生计数及其关联的边际误差均为计算值（可通过字段名中的「_calc_」前缀识别），且符合ACS的相关规范要求。字段别名依据美国社区调查汇总文件文档页面提供的表框架文件生成。除-5555...类数值已设为0外，其余负值（如-4444...）均已被设为空值。原始API数据中的这些负值用于表示以下场景： 1. 边际误差列表明：无样本观测值或样本观测值过少，无法计算标准误，因此无法得出边际误差，此时不适合进行统计检验； 2. 无样本观测值或样本观测值过少，无法计算估算值；或因其中一个或两个中位数估算值落在开放式分布的最低区间或最高区间，无法计算中位数比率； 3. 中位数落在开放式分布的最低区间或最高区间； 4. 不适合进行统计检验； 5. 估算值已被控制，此时不适合进行抽样变异性统计检验； 6. 样本案例数量过少，无法展示该地理区域的数据。