Code for merging National Neighborhood Data Archive ZCTA level datasets with the UDS Mapper ZIP code to ZCTA crosswalk

The sample SAS and Stata code provided here is intended for use with certain datasets in the National Neighborhood Data Archive (NaNDA). NaNDA (https://www.openicpsr.org/openicpsr/nanda) contains some datasets that measure neighborhood context at the ZIP Code Tabulation Area (ZCTA) level. They are intended for use with survey or other individual-level data containing ZIP codes. Because ZIP codes do not exactly match ZIP code tabulation areas, a crosswalk is required to use ZIP-code-level geocoded datasets with ZCTA-level datasets from NaNDA. A ZIP-code-to-ZCTA crosswalk was previously available on the UDS Mapper website, which is no longer active. An archived copy of the ZIP-code-to-ZCTA crosswalk file has been included here. Sample SAS and Stata code are provided for merging the UDS mapper crosswalk with NaNDA datasets.

本处提供的示例 SAS 和 Stata 编码旨在配合国家社区数据档案（NaNDA）中的特定数据集使用。NaNDA（https://www.openicpsr.org/openicpsr/nanda）包含部分数据集，用于衡量 ZIP 代码编制区域（ZCTA）层面的社区背景。这些数据集旨在与包含 ZIP 代码的调查或其他个体层面的数据结合使用。由于 ZIP 代码与 ZIP 代码编制区域不完全对应，因此在使用 NaNDA 的 ZCTA 层面数据集与基于 ZIP 代码层面的地理编码数据集时，需要建立交叉映射。此前，ZIP 代码至 ZCTA 的交叉映射已在 UDS Mapper 网站上提供，但现已停止服务。本处已包括 ZIP 代码至 ZCTA 交叉映射文件的存档副本。同时，提供示例 SAS 和 Stata 编码，用于将 UDS Mapper 交叉映射与 NaNDA 数据集进行合并。