2020 Total Population by Census Tract

This layer shows total population count for each census tract in the United States, made available by Esri Demographics. The data is originally from from the U.S. Census Bureau 2020 Census Demographic and Housing Characteristics. Popups for each census tract were customized to provide additional detail about population count by different categories: Urban vs. rural Race/ethnicity Age groups From the U.S. Census Bureau: "Census Tracts are small, relatively permanent statistical subdivisions of a county or statistically equivalent entity that can be updated by local participants prior to each decennial census as part of the Census Bureau’s Participant Statistical Areas Program (PSAP). The Census Bureau delineates census tracts in situations where no local participant responded or where state, local, or tribal governments declined to participate. The primary purpose of census tracts is to provide a stable set of geographic units for the presentation of statistical data. Census tracts generally have a population size between 1,200 and 8,000 people, with an optimum size of 4,000 people."

本图层由Esri Demographics提供，展示了美国各人口普查区（census tract）的总人口数量。该数据原始来源为美国人口普查局（U.S. Census Bureau）发布的《2020年人口普查人口与住房特征报告》。各人口普查区的弹窗均经过自定义配置，可提供按不同维度划分的人口细分详情：城镇与乡村、种族/族裔、年龄组。

美国人口普查局对此说明如下："人口普查区是县或统计等效区域内规模较小、相对固定的统计分区，可由本地参与方在每十年一次的人口普查前，依据美国人口普查局的参与统计区域项目（Participant Statistical Areas Program, PSAP）进行更新。若没有本地参与方响应，或州、地方或部落政府拒绝参与，则由美国人口普查局自行划定人口普查区。人口普查区的核心用途是提供一套稳定的地理单元，用于统计数据的可视化展示。人口普查区的人口规模通常介于1200至8000人之间，最优规模为4000人。"