What Is My ZIP Code? Find Your ZIP by Location, Map, or Address

Find your ZIP code in seconds

We’ve all been there: you’re filling out a form, checking out online, or sending a package, and suddenly you can’t remember the ZIP code for where you are. Maybe you just moved, you’re traveling, or you’re helping someone in another state. This free tool answers the question “what’s my ZIP code?” for anywhere in the United States, in a few seconds.

You can use it three ways, depending on what’s easiest:

• Use my location: the quickest option on a phone. Tap the button, allow location access, and the tool shows the ZIP code for exactly where you’re standing, with the ZIP area outlined on the map.
• Pick on the map: great on a computer. Zoom in and click any spot in the U.S. to see its ZIP code.
• Enter an address: type a street address, city, and state, and the tool finds its ZIP code using official U.S. Census Bureau address data.

It works in all 50 states and Washington, D.C., and covers more than 33,000 ZIP code areas, from big cities like New York and Los Angeles to small towns in Alaska and rural Texas.

Your location stays private

Sharing your location with a website can feel uneasy, so here’s exactly what happens. When you tap “Use my location,” your browser asks for permission first, and nothing is shared unless you say yes. Your location is then compared with ZIP code boundary data right inside your browser. It isn’t sent to our servers, it isn’t saved, and it isn’t shared with anyone.

If you’d rather not share your location at all, the map and address options work just as well.

How U.S. ZIP codes work

ZIP codes were introduced by the U.S. Postal Service in 1963 to speed up mail delivery. “ZIP” stands for Zone Improvement Plan, and today there are more than 41,000 of them across the country.

Each of the five digits means something:

• The first digit is a broad region of the country, running from 0 in the Northeast to 9 on the West Coast, Alaska, and Hawaii.
• The next two digits point to a central mail-processing facility in that region.
• The last two digits narrow it down to a specific post office or delivery area.

You may also see a ZIP+4 code, like 77055-1234. Those four extra digits identify a specific block, building, or group of mailboxes. You don’t usually need them, but they help with business mail and large mailings.

Why your ZIP code might look slightly different

Here’s something most people don’t know: ZIP codes aren’t really map areas. The Postal Service designs them around mail routes, which can change over time, and some ZIP codes cover only PO Boxes or a single large organization.

To draw ZIP codes on a map, this tool uses the U.S. Census Bureau’s ZIP Code Tabulation Areas, which closely match postal ZIP codes for the vast majority of addresses. Near the edge of a ZIP area, though, a building can sometimes use a neighboring ZIP code. That’s why the tool lets you know when you’re close to a border. For important mail, it’s always worth confirming the address with the official USPS ZIP Code Lookup.

Tips for the most accurate result

• On a phone, go outside or near a window if your location seems off. GPS works best with a clear view of the sky.
• On a laptop or desktop, location is usually estimated from your Wi-Fi or internet connection and can be off by a mile or more. Picking your spot on the map gives a much more exact answer.
• For addresses, include the house number, street, city, and state, for example: 1234 Main St, Houston, TX.

Frequently asked questions

What is my ZIP code right now?
Tap “Use my location” at the top of this page and allow location access. The tool shows the ZIP code for your current location and outlines the ZIP area on the map.

How do I find the ZIP code for an address?
Choose “Enter an address,” type the full street address with the city and state, and press Find ZIP. The tool matches it using U.S. Census Bureau address data.

Is it safe to use my location on this site?
Yes. Your location is only used inside your browser to find your ZIP code. It’s never sent to our servers, stored, or shared.

Why does my computer show the wrong location?
Most computers don’t have GPS, so they estimate your position from your internet connection. Use “Pick on the map” or enter your address for an exact result.

How many ZIP codes are there in the United States?
There are more than 41,000 U.S. ZIP codes. This tool maps over 33,000 ZIP code areas, which cover the places where people live and work. The rest are mostly PO Box and single-organization ZIP codes that don’t have a map area.

Does this tool work outside the U.S.?
No. It covers U.S. ZIP codes only, in all 50 states and Washington, D.C.