ZIP code 94309
Where is ZIP code 94309?
Palo Alto, California
Santa Clara County · PO Box only ZIP code
ZIP code 94309 belongs to Palo Alto, California in Santa Clara County. 94309 is a PO Box only ZIP code: it is used for post office boxes at the Palo Alto post office, not for street addresses. It is in the Pacific Time zone and uses area code 650. The closest ZIP codes are 94302 (Palo Alto, 0 mi north), 94301 (Palo Alto, 0.4 mi northwest) and 94305 (Stanford, 1.6 mi southwest).
| ZIP code | 94309 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Palo Alto |
| Also accepted | Stanford |
| State | California (CA) |
| County | Santa Clara County |
| Time zone | Pacific Time · now |
| Area code | 650 |
| Coordinates | 37.4419, -122.143 map |
| 3-digit prefix | 943 |
The Census Bureau doesn’t publish population figures for po box only ZIP codes because nobody lives at a PO Box or a single organization’s address. For figures about the area, see the nearby standard ZIP codes below.
ZIP codes near 94309
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 94302 | Palo Alto, CA | 0 mi N | PO Box only |
| 94301 | Palo Alto, CA | 0.4 mi NW | Standard |
| 94305 | Stanford, CA | 1.6 mi SW | Standard |
| 94303 | Palo Alto, CA | 1.8 mi N | Standard |
| 94306 | Palo Alto, CA | 1.9 mi SE | Standard |
| 94304 | Palo Alto, CA | 2.3 mi W | Standard |
| 94025 | Menlo Park, CA | 2.4 mi W | Standard |
| 94027 | Atherton, CA | 3.3 mi W | Standard |
| 94023 | Los Altos, CA | 4.2 mi S | PO Box only |
| 94022 | Los Altos, CA | 4.3 mi S | Standard |
| 94043 | Mountain View, CA | 4.4 mi SE | Standard |
| 94063 | Redwood City, CA | 4.5 mi NW | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 94309 or measure the distance to another ZIP code.
How to address mail to 94309
PO BOX 123
PALO ALTO CA 94309
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts STANFORD as the city name for 94309. Adding the 4-digit ZIP+4 code (94309-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Palo Alto, CA
All Palo Alto ZIP codes with population and income →
Questions
- What city is ZIP code 94309?
- 94309 is a Palo Alto, California ZIP code. Stanford is also accepted as the city name.
- What county is 94309 in?
- ZIP code 94309 is in Santa Clara County, California.
- What time zone is ZIP code 94309 in?
- 94309 is in the Pacific Time zone (America/Los_Angeles).
- What area code is 94309?
- Phone numbers in ZIP code 94309 use area code 650.
- Can I use 94309 for a street address?
- No. 94309 is only for PO Boxes. Street addresses in Palo Alto use 94301, 94303, 94304.
- What ZIP codes are near 94309?
- The nearest ZIP codes to 94309 are 94302 (Palo Alto, 0 miles), 94301 (Palo Alto, 0.4 miles), 94305 (Stanford, 1.6 miles) and 94303 (Palo Alto, 1.8 miles).