This Condition located on the Address category tab in Search Builder let’s you find people based on the zip code of their Primary/Preferred Address.
If you want to find everyone in a specific zip code, be sure to use the Comparison Starts With instead of Equal. If you use Equal, you will get only those without the +4 on their zip. Also, you can find those in a wider area by using only the first 2 or 3 digits of a zip code.
Use Case - Resident Codes
If you use the Resident Code feature in TouchPoint, you might want to see how many people actively attend your church but live in zip codes that are outside your city. You then might want to make those zip codes Marginal codes in your Zip Codes list. Then you can include Metro and Marginal when creating searches for your local congregation.