ZIP Code 94609 — Oakland, CA
94609 is a standard (street delivery) ZIP code serving Oakland, California, in Alameda County. To mail something here you only need these five digits — but the four-digit extension narrows delivery to a single point, and it is what USPS bulk postage discounts are priced on.
ZIP code 94609 at a glance
| ZIP code | 94609 |
|---|---|
| Primary city | Oakland |
| State | California (CA) |
| County | Alameda FIPS 06001 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 23,928 |
| Coordinates | 37.834760, -122.264200 |
How ZIP+4 works in 94609
The four digits after the hyphen encode a delivery segment inside 94609. In practice one segment usually means:
- One side of one block — odd numbers on a street between two cross streets
- A single large building, or one floor of it
- A group of PO boxes, sometimes a single box
- A single business that receives enough mail to warrant its own code
That is why 94609 has no single ZIP+4: two neighbors across the street from each other usually have different ones. Enter a street address above and we will return the exact nine-digit code along with the standardized USPS address format.
Other ZIP codes in Oakland
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 94609.
| ZIP | City | Distance |
|---|---|---|
| 94608 | Emeryville, CA | 1.2 mi |
| 94618 | Oakland, CA | 1.5 mi |
| 94612 | Oakland, CA | 1.9 mi |
| 94610 | Oakland, CA | 2 mi |
| 94703 | Berkeley, CA | 2.1 mi |
| 94704 | Berkeley, CA | 2.2 mi |
| 94705 | Berkeley, CA | 2.5 mi |
| 94702 | Berkeley, CA | 2.5 mi |
| 94611 | Oakland, CA | 2.6 mi |
| 94720 | Berkeley, CA | 2.6 mi |
| 94607 | Oakland, CA | 2.7 mi |
| 94709 | Berkeley, CA | 3 mi |
Questions about 94609
What is the ZIP+4 code for 94609?
94609 is the five-digit ZIP code. The ZIP+4 adds four more digits that identify a specific delivery point — usually one side of a city block, a single building, or a group of PO boxes. Because those four digits change from address to address within 94609, you need to look up a specific street address to get them.
What city is 94609?
94609 is assigned to Oakland, California, in Alameda County.
Do I need to use the ZIP+4?
It is optional for ordinary mail, but it speeds up sorting and it is required for most USPS bulk-mail postage discounts. Many address-verification and e-commerce systems also use ZIP+4 to confirm a delivery point exists.
Need thousands of these?
Upload a CSV and get ZIP+4, county, carrier route, and delivery-point data appended to every row — or call the API directly.