County Zip Code

The County-ZIP Code Database provides a comprehensive list of ZIP Codes and their corresponding counties across the United States and its territories, as served by the USPS. Unlike other databases that link a single county to each ZIP Code, this unique database accounts for ZIP Codes that span multiple counties due to real-world boundary overlaps.

Using the County-ZIP Code Database, you can find every ZIP Code which lies partially or completely within a given county. Or you can find all counties which contain some portion of a particular ZIP Code. You also can find the preferred city name associated with any ZIP Code, and the county FIPS code associated with any county. Compiled by Melissa from diverse sources, including USPS, the database strives for accuracy across its approximately 55,000 records.

Look at documentation [here](https://docs.melissa.com/reference-data/county-zip-code/county-zip-code-data-layout.html)!

Tables included:
- County-ZIP Code Database (CZ)
- State FIPS Code Database (STFIPS)

Fields included:
- County
- ZIP Code
- ZIP Code Type
- FIPS
- City
- State
- Address Record Count
- Prevalent-County Flag
- Multiple-County Flag

搜集汇总

背景与挑战

背景概述

County Zip Code数据集提供了全美范围内邮政编码与所属县区的完整映射关系，包含约55,000条记录，支持跨县区邮政编码查询，并附带城市名称、FIPS代码等关键字段。数据来源于USPS等多方渠道，由Melissa公司整合维护。