Oct 05 2020 06:58 PM - edited Oct 05 2020 06:59 PM
Oct 06 2020 05:42 AM
Hello @SMcPherson,
I would first suggest finding a database full of U.S. counties paired with their respective ZIP code. You can place this table in a worksheet of your excel workbook. Then, you can use INDEX() + MATCH() to find the ZIP code for county X or the county for ZIP code Y.