Click the " Find by Address " button on the USPS tool and type the full street address with city and state at a minimum. You can also enter the company name and any suite or floor number. Click " Find " to see the USPS-formatted address with the five-digit ZIP Code and its extra four digits.How do you look up a ZIP code?
Find the ZIP code of an exact address by visiting USPS.com and clicking on the Look Up a ZIP Code button under the Quick Tools main menu option. On this page, enter in the street address and unit or apartment number along with the city and state in which the address exists.How do I Find my postal code?
Search street address, rural route, PO box or general delivery to get a postal code. Search by postal code to get a complete address. Start typing in the address box using either the house number and street name or the postal code. Suggested addresses will appear.