ZCTAs for Iowa and Surrounding Areas

This dataset contains ZIP Code Tabulation Areas (ZCTAs) for Iowa and surrounding areas. ZCTAs are generalized representations of United States Postal Service (USPS)...本数据集包含艾奥瓦州及周边区域的邮政编码制表区域（ZIP Code Tabulation Areas，ZCTAs）。邮政编码制表区域是美国邮政署（United States Postal Service，USPS）的广义化表征……