Household Types and Populations - Seattle Neighborhoods

Table from the American Community Survey (ACS) 5-year series on household types and population related topics for City of Seattle Council Districts, Comprehensive Plan Growth Areas and Community Reporting Areas. Table includes B11003 Family Type by Presence and Age of Own Children under 18 Years, B11005 Households by Presence of People Under 18 Years by Household Type, B11007 Households by Presence of People 65 Years and Over by Household Type, B11001 Household Type (Including Living Alone), B11002 Household Type by Relatives and Nonrelatives for Population in Households, B25003 Tenure, B25008 Total Population in Occupied Housing Units by Tenure, B09019 Household Type (Including Living Alone) by Relationship. Data is pulled from block group tables for the most recent ACS vintage and summarized to the neighborhoods based on block group assignment. Vintages: 2024 ACS Table(s): B11003, B11005, B11007, B11001, B11002, B25003, B25008, B09019 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.本数据集取自美国社区调查（American Community Survey, ACS）5年系列数据，涵盖西雅图市议会选区、综合规划增长区及社区报告区域的家庭类型与人口相关主题统计表格。本数据集涵盖以下统计表格：B11003《18岁以下自有子女的存在情况与年龄划分的家庭类型》、B11005《按家庭类型划分的、包含18岁以下人口的家庭》、B11007《按家庭类型划分的、包含65岁及以上人口的家庭》、B11001《家庭类型（含独居情况）》、B11002《按家庭户内人口的亲属与非亲属关系划分的家庭类型》、B25003《住房权属（Tenure）》、B25008《按住房权属划分的已入住住房单元总人口》、B09019《按亲属关系划分的家庭类型（含独居情况）》。 数据源自街区组原始表格，采用2024年最新版ACS统计年份，并根据街区组归属关系汇总至各社区。本次涉及的ACS表格为：B11003、B11005、B11007、B11001、B11002、B25003、B25008、B09019。数据下载自美国人口普查局的Explore Census Data平台。 美国人口普查局美国社区调查（ACS）的相关资源包括：调查概况、地理与ACS技术文档、新闻与更新。 本即用型图层可在ArcGIS Pro、ArcGIS Online及其可配置应用、仪表板、Story Maps（故事地图）、自定义应用及移动应用中使用。数据亦可导出用于离线工作流程。使用本数据时请务必引用美国人口普查局及ACS。 美国人口普查局数据说明：本数据基于抽样调查，受抽样变异性影响。抽样变异性带来的估计值不确定性以误差范围（margin of error）体现，此处展示的为90%置信水平的误差范围，其含义为：估计值减去误差范围与估计值加上误差范围所构成的区间（即置信上下限）有90%的概率包含真实值。除抽样变异性外，ACS估计值还受非抽样误差影响（关于非抽样变异性的详细讨论可参见《数据准确性》一文），本统计表格未体现非抽样误差的影响。 数据处理说明：边界数据源自美国人口普查局拓扑集成地理编码与参照（Topologically Integrated Geographic Encoding and Referencing, TIGER）地理数据库，具体为国家次州地理数据库（命名格式为tlgdb_(年份)_a_us_substategeo.gdb）。边界与数据同步更新（每年一次），边界统计年份与人口普查局指定的数据统计年份保持一致。为满足制图与绘图需求，本数据已移除普查边界中的水体及海岸线要素。对于普查街区组，水体裁剪源自TIGER提供的2020年面积水文边界子集：面积≥5000万平方米的大中型水体及其他重要要素已从街区组边界中移除。对于州与县级边界，水体及海岸线源自2020年500k TIGER制图边界形状文件的海岸线，移除后可更精准地展现海岸线及五大湖区域。数据表格中仍保留原始的AWATER与ALAND字段（单位：平方米）。本州图层包含52条记录，涵盖美国所有州、哥伦比亚特区及波多黎各。本数据服务已移除位于海洋等水域区域的无人口普查街区组（即以99开头的普查街区组）。 字段与负值处理规则：百分比、派生计数及相关误差范围为计算所得值（字段名称中带有_calc_前缀），并严格遵循美国社区调查的规范要求。字段别名基于美国社区调查汇总文件文档页面提供的表格外壳文件生成。部分负值（如-4444……）已被设置为空值，仅-5555……除外，此类负值已被统一设置为0。原始API数据中的此类负值用于标识以下情形： 1. 误差范围列表明无可用样本观测值或样本观测值过少，无法计算标准误差及误差范围，此时不适合进行统计检验； 2. 无可用样本观测值或样本观测值过少，无法计算估计值，或因其中一个或两个中位数估计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. 估计值已受控制，不适合进行抽样变异性统计检验； 6. 本地理区域的样本量过小，无法展示数据。