ACS Housing Costs Variables - Centroids
收藏资源简介:
Retirement Notice: This item is in mature support as of February 2026 and will retire in December 2027. A new version of this item is available for your use. Esri recommends updating your maps and apps to use the new version. This layer shows housing costs as a percentage of household income. This is shown by tract, county, and state centroids. This service is updated annually to contain the most currently released 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. Income is based on earnings in past 12 months of survey. This layer is symbolized to show the count and percent of renter households that spend 30.0% or more of their household income on gross rent (contract rent plus tenant-paid utilities). To see the full list of attributes available in this service, go to the "Data" tab, and choose "Fields" at the top left. Vintage: 2019-2023 ACS Table(s): B25070, B25091 Data downloaded from: Census Bureau's API for American Community Survey Date of API call: December 12, 2024 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 and its configurable apps, dashboards, Story Maps, custom apps, and mobile apps. Data can also be exported for offline workflows. For more information about ACS layers, visit the FAQ. 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: This layer is updated automatically when the most current vintage of ACS data is released each year, usually in December. The layer always contains the latest available ACS 5-year estimates. It is updated annually within days of the Census Bureau's release schedule. Click here to learn more about ACS data releases. 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 2023 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.
退役通知:本产品自2026年2月起进入成熟支持阶段,并将于2027年12月正式退役。目前已有新版本可供使用,Esri建议您更新地图与应用以适配新版本。 本图层展示了住房成本占家庭收入的比例,以普查区(census tract)、县及州质心为单位呈现。本服务每年更新一次,纳入最新发布的美国社区调查(American Community Survey, ACS)5年周期数据,包含估算值与误差边际。此外还提供与该主题相关的额外计算属性,可用于制图或分析。收入统计基于受访者过去12个月的收入。 本图层通过符号化展示租房家庭中,将30.0%及以上家庭收入用于总租金(合同租金+租户承担的公用事业费用)的户数占比与户数。如需查看本服务中所有可用属性列表,请前往「数据」选项卡,并选择左上角的「字段」。 数据年份:2019-2023年ACS 表项:B25070、B25091 数据来源:美国人口普查局(U.S. Census Bureau)美国社区调查API API调用日期:2024年12月12日 全国数据来源:data.census.gov 关于美国社区调查(ACS):调查介绍、地理与ACS技术文档、新闻与更新 本现成可用的图层可在ArcGIS Pro、ArcGIS Online及其可配置应用、仪表盘、故事地图(Story Maps)、自定义应用及移动应用中使用。数据也可导出用于离线工作流。如需了解更多ACS图层相关信息,请访问常见问题解答(FAQ)。使用本数据时,请引用美国人口普查局与ACS。 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算不确定性通过误差边际体现。此处展示的为90%置信度的误差边际,其含义为:估算值加减误差边际所形成的区间(即置信上下限)有90%的概率包含真实值。除抽样变异性外,ACS估算值还受非抽样误差影响(非抽样变异性的相关讨论详见《数据的准确性》),本表格未体现非抽样误差的影响。 数据处理说明:本图层会在每年最新周期的ACS数据发布时自动更新,通常于12月进行。本图层始终包含最新可用的ACS 5年周期估算值,每年会在美国人口普查局发布数据后的数日内完成更新。点击此处可了解更多ACS数据发布相关信息。 边界数据源自美国人口普查局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)。边界数据与数据同步每年更新一次,边界年份与普查局指定的数据年份完全匹配。 为制图与地图制作目的,本图层已移除普查边界中的水体及海岸线: - 对于普查区,水体裁剪源自2020年面积水文(Areal Hydrography)边界的子集(由TIGER提供),面积≥5000万平方米的大中型水体及其他重要地物已从普查区边界中移除。 - 对于州和县边界,水体及海岸线源自2023年500k分辨率TIGER制图边界形状文件的海岸线,移除后可更准确地呈现海岸线与五大湖轮廓。 原始的AWATER与ALAND字段仍可作为数据表中的属性使用(单位为平方米)。 州图层包含52条记录:覆盖美国所有州、华盛顿哥伦比亚特区及波多黎各。 本数据服务已移除水域区域(如海洋)内无人口的普查区(普查区代码以99开头)。 百分比与衍生户数及相关误差边际为计算值(字段名带有「_calc_」前缀),符合美国社区调查的规范要求。字段别名基于美国社区调查摘要文件文档页面中的表壳(Table Shells)文件创建。 除-5555…已被设置为0外,其余负值(如-4444…)均已设置为空值。这些负值在原始API数据中用于标记以下情况: 1. 误差边际列:无可用抽样观测值或抽样观测值过少,无法计算标准误差及误差边际,不适合进行统计检验。 2. 无可用抽样观测值或抽样观测值过少,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分布的最低或最高区间内,无法计算中位数比值。 3. 中位数落在开放分布的最低或最高区间内,不适合进行统计检验。 4. 估算值已受控,不适合进行抽样变异性统计检验。 5. 因抽样案例数量过少,无法展示本地理区域的数据。



