San Francisco Population and Demographic Census Data

<strong>A. SUMMARY</strong>
This dataset contains population and demographic estimates and associated margins of error obtained and derived from the <a href="https://www.census.gov/">US Census</a>. The data is presented over multiple years and geographies. The data is sourced primarily from the <a href="https://www.census.gov/programs-surveys/acs">American Community Survey</a>.

<strong>B. HOW THE DATASET IS CREATED</strong>
The raw data is obtained from the <a href="https://www.census.gov/data/developers/data-sets.html">census API</a>. Some estimates as published as-is and some are derived.

<strong>C. UPDATE PROCESS</strong>
New estimates and years of data are appended to this dataset. To request additional census data for San Francisco, email [e-mail]

<strong>D. HOW TO USE THIS DATASET</strong>
The dataset is long and contains multiple estimates, years and geographies. To use this dataset, you can filter by the <a href="https://data.sfgov.org/d/dmx4-ig78">overall segment</a> which contains information about the source, years, geography, demographic category and reporting segment. For census data used in specific reports, you can filter to the <a href="https://data.sfgov.org/d/kctw-xj99">reporting segment</a>. To use a subset of the data, you can create a filtered view. More information of how to filter data and create a view can be found <a href="https://data.sfgov.org/videos#basic-filtering">here</a>

{'A. 摘要': '本数据集囊括了由美国人口普查局（US Census）收集及推导的人口统计数据及其误差范围。数据覆盖了多个年份和地理区域，其主要来源为美国社区调查（American Community Survey）。', 'B. 数据集创建方法': '原始数据通过美国人口普查局的API（census API）获取。部分估计数据直接发布，部分则经过推导。', 'C. 更新流程': '新的估计数据和年份数据将被添加至本数据集中。如需获取旧金山地区额外的普查数据，请发送电子邮件至[e-mail]。', 'D. 数据集使用方法': '本数据集内容庞杂，包含多个估计值、年份和地理区域。用户可通过包含关于数据来源、年份、地理、人口类别和报告段的信息的<a href="https://data.sfgov.org/d/dmx4-ig78">总体分段</a>进行筛选。对于特定报告中使用的普查数据，可筛选至<a href="https://data.sfgov.org/d/kctw-xj99">报告段</a>。若需使用数据子集，可创建筛选视图。关于如何筛选数据和创建视图的更多信息，请参阅<a href="https://data.sfgov.org/videos#basic-filtering">此处</a>。'}