Households by Type 2020-2024 - COUNTIES

This layer shows Households by Type. This is shown by state and county boundaries. This service contains the 2020-2024 release of data from the American Community Survey (ACS) 5-year data, and contains estimates and margins of error. There are also additional calculated attributes related to this topic, which can be mapped or used within analysis. This layer is symbolized to show Average Household Size and the Total Households in a bi-variate map. To see the full list of attributes available in this service, go to the "Data" tab, and choose "Fields" at the top right. Current Vintage: 2020-2024 ACS Table(s): B11001, B25010, B25044, DP02, DP04 Data downloaded from: Census Bureau's API for American Community Survey Date of API call: March 3, 2026 National Figures: data.census.gov 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 Cartographic Boundaries via US Census TIGER geodatabases. Boundaries are updated at the same time as the data updates, and the boundary vintage appropriately matches the data vintage as specified by the Census. These are Census boundaries with water and/or coastlines clipped for cartographic purposes. For state and county boundaries, the water and coastlines are derived from the coastlines of the 500k TIGER Cartographic Boundary Shapefiles. 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. The Counties (and equivalent) layer contains 3221 records - all counties and equivalent, Washington D.C., and Puerto Rico municipios. See Areas Published. 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. Margin of error (MOE) values of -555555555 in the API (or "*****" (five asterisks) on data.census.gov) are displayed as 0 in this dataset. The estimates associated with these MOEs have been controlled to independent counts in the ACS weighting and have zero sampling error. So, the MOEs are effectively zeroes, and are treated as zeroes in MOE calculations. Other negative values on the API, such as -222222222, -666666666, -888888888, and -999999999, all represent estimates or MOEs that can't be calculated or can't be published, usually due to small sample sizes. All of these are rendered in this dataset as null (blank) values.本图层展示按类型划分的家庭（Households by Type），以州界与县界作为地理边界。本服务采用美国社区调查（American Community Survey, ACS）5年调查的2020-2024年发布数据，包含估算值与误差边际。此外还包含与该主题相关的额外计算属性，可用于制图与分析工作。本图层采用双变量制图符号化方式，以展示平均家庭规模与家庭总数量。如需查看本服务中可用的完整属性列表，请访问「数据」选项卡，并选择右上角的「字段」。当前数据版本：2020-2024年ACS，涉及的数据表包括：B11001、B25010、B25044、DP02、DP04。数据通过美国人口普查局（Census Bureau）的ACS API获取，API调用日期为2026年3月3日。全国统计数据源自data.census.gov。美国人口普查局美国社区调查（ACS）相关资源：关于本调查、地理信息与ACS技术文档、新闻与更新。本图层为即用型产品，可在ArcGIS Pro、ArcGIS Online及其配置型应用、仪表板、故事地图（Story Maps）、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。美国人口普查局的数据说明：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值不确定程度通过误差边际（Margin of Error, MOE）体现。此处显示的为90%置信水平的误差边际，即估算值加减误差边际所构成的区间有90%的概率包含真实值。除抽样变异性外，ACS估算值还存在非抽样误差（关于非抽样变异性的讨论，请参见《数据精度》一文），本表格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地理数据库的制图边界文件。边界随数据同步更新，其数据版本与人口普查局指定的数据版本完全匹配。本图层为制图目的裁剪了水体与海岸线的美国人口普查局边界。对于州界与县界，其水体与海岸线源自500k分辨率TIGER制图边界形状文件的海岸线数据。数据表格中仍保留原始的AWATER与ALAND字段，单位为平方米。州图层包含52条记录，涵盖全美所有州、华盛顿哥伦比亚特区与波多黎各。县（及等效区划）图层包含3221条记录，涵盖全美所有县及等效区划、华盛顿哥伦比亚特区与波多黎各的自治市。请参见《已发布区域》。百分比与衍生计数及其对应的误差边际均为计算值（可通过字段名中的「_calc_」前缀识别），符合美国社区调查的规范。字段别名基于数据表壳（Table Shells）创建。API中返回的误差边际（MOE）值-555555555（或data.census.gov上显示的「*****」五个星号）在本数据集中将显示为0。与这些误差边际对应的估算值已在ACS加权流程中被控制为独立计数，抽样误差为0，因此其误差边际实际为0，在误差边际计算中按0处理。API中的其他负值，如-222222222、-666666666、-888888888与-999999999，均代表因样本量过小等原因无法计算或发布的估算值或误差边际，本数据集将这些值统一渲染为空（空白）值。