<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Because Zip Codes are based upon delivery routes for mail and not for studying a given area, the United States Postal Service does not generate a cartographic boundary file. The United States Census Bureau has generated a "Zip Code Tabulation Area" or "ZCTA" boundary file which generalizes a cartographic boundary based upon the zip code assigned to a majority of addresses in a census block. More information on this process can be found at: https://www.census.gov/programs-surveys/geography/guidance/geo-areas/zctas.html</SPAN></P><P><SPAN>Please note that all zip codes are NOT included within this boundary file. Some zip codes belong to an individual post office location which may have numerous P.O. Boxes or to a large volume customer (e.g., certain businesses, universities, etc.).</SPAN></P><P><SPAN>UDS Mapper (Uniform Data System Mapper), which is a project for users of public health information (PHI) datasets used in federally funded research, has generated a cross-walk table for all ZCTAs in the United States and Puerto Rico. In general, this allows ALL zip codes to be placed within a ZCTA even though they may not be visually represented. More about this process can be found at https://udsmapper.org/zip-code-to-zcta-crosswalk/</SPAN></P><P><SPAN>FOR SOLANO COUNTY (ONLY):</SPAN></P><P><SPAN>Based upon information from UDS Mapper and the United States Census Bureau, the following zip codes are NOT included in the ZCTA boundary file since they correspond to either a Post Office or a large volume postal customer: 95696</SPAN></P><P><SPAN>** If verifying information between UDS Cross-Walk 2021 File and 2022 ZCTA's: Zip Code 95625, which corresponds to Elmira, is now included as a ZCTA as of April 3, 2023 **</SPAN></P><P><SPAN>** Please note that zip code 99999 is NOT a valid zip code and is a placeholder for waterbodies and other areas without a valid zip code **</SPAN></P><P><SPAN>Fields Added by Solano County:</SPAN></P><P><SPAN>Primary_PO: Corresponds to the Post Office which services that zip code. These Post Offices are not necessarily located inside of Solano County (e.g., for ZCTAs 94503, 95618, 95612, 95694)</SPAN></P><P><SPAN /></P><P><SPAN>Date ZCTA Data Published: 05/04/2022</SPAN></P><P><SPAN>Date UPS Data Published: 10/05/2022</SPAN></P><P><SPAN>Date ZCTA Recieved by Solano County GIS: 04/03/2023</SPAN></P><P><SPAN>Date UPS Data Recieved by Solano County: 04/03/2023</SPAN></P><P><SPAN>Date Created by Solano County: 04/03/2023</SPAN></P><P><SPAN>Date File Last Updated: 04/18/2023</SPAN></P><P><SPAN>Date Metadata Created: 04/03/2023</SPAN></P><P><SPAN>Date Metadata Last Updated: 04/18/2023</SPAN></P><P><SPAN /></P><P><SPAN>Last Editor: RBerning</SPAN></P><P><SPAN>Uploaded 04/20/2023 BConrad, Department of Information Technology</SPAN></P></DIV></DIV></DIV>
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Because Zip Codes are based upon delivery routes for mail and not for studying a given area, the United States Postal Service does not generate a cartographic boundary file. The United States Census Bureau has generated a "Zip Code Tabulation Area" or "ZCTA" boundary file which generalizes a cartographic boundary based upon the zip code assigned to a majority of addresses in a census block. More information on this process can be found at: https://www.census.gov/programs-surveys/geography/guidance/geo-areas/zctas.html</SPAN></P><P><SPAN>Please note that all zip codes are NOT included within this boundary file. Some zip codes belong to an individual post office location which may have numerous P.O. Boxes or to a large volume customer (e.g., certain businesses, universities, etc.).</SPAN></P><P><SPAN>UDS Mapper (Uniform Data System Mapper), which is a project for users of public health information (PHI) datasets used in federally funded research, has generated a cross-walk table for all ZCTAs in the United States and Puerto Rico. In general, this allows ALL zip codes to be placed within a ZCTA even though they may not be visually represented. More about this process can be found at https://udsmapper.org/zip-code-to-zcta-crosswalk/</SPAN></P><P><SPAN>FOR SOLANO COUNTY (ONLY):</SPAN></P><P><SPAN>Based upon information from UDS Mapper and the United States Census Bureau, the following zip codes are NOT included in the ZCTA boundary file since they correspond to either a Post Office or a large volume postal customer: 95696</SPAN></P><P><SPAN>** If verifying information between UDS Cross-Walk 2021 File and 2022 ZCTA's: Zip Code 95625, which corresponds to Elmira, is now included as a ZCTA as of April 3, 2023 **</SPAN></P><P><SPAN>** Please note that zip code 99999 is NOT a valid zip code and is a placeholder for waterbodies and other areas without a valid zip code **</SPAN></P><P><SPAN>Fields Added by Solano County:</SPAN></P><P><SPAN>Primary_PO: Corresponds to the Post Office which services that zip code. These Post Offices are not necessarily located inside of Solano County (e.g., for ZCTAs 94503, 95618, 95612, 95694)</SPAN></P><P><SPAN /></P><P><SPAN>Date ZCTA Data Published: 05/04/2022</SPAN></P><P><SPAN>Date UPS Data Published: 10/05/2022</SPAN></P><P><SPAN>Date ZCTA Recieved by Solano County GIS: 04/03/2023</SPAN></P><P><SPAN>Date UPS Data Recieved by Solano County: 04/03/2023</SPAN></P><P><SPAN>Date Created by Solano County: 04/03/2023</SPAN></P><P><SPAN>Date File Last Updated: 04/18/2023</SPAN></P><P><SPAN>Date Metadata Created: 04/03/2023</SPAN></P><P><SPAN>Date Metadata Last Updated: 04/18/2023</SPAN></P><P><SPAN /></P><P><SPAN>Last Editor: RBerning</SPAN></P><P><SPAN>Uploaded 04/20/2023 BConrad, Department of Information Technology</SPAN></P></DIV></DIV></DIV>
[]
{'Title': 'E:\\GIS_Data_Review\\Zip_Codes\\Zip_Codes.aprx', 'Author': '', 'Comments': '', 'Subject': '', 'Category': '', 'AntialiasingMode': 'None', 'TextAntialiasingMode': 'Force', 'Version': '2.9.0', 'Keywords': 'polygon,areas,ZIP Codes,five-digit ZIP Codes,post offices,location,society,boundaries,California,Solano County'}
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