What city is ZIP code 94620?

94620 is a Piedmont, California ZIP code. Oakland is also accepted as the city name.

What county is 94620 in?

ZIP code 94620 is in Alameda County, California.

What time zone is ZIP code 94620 in?

94620 is in the Pacific Time zone (America/Los_Angeles).

What area code is 94620?

Phone numbers in ZIP code 94620 use area code 510.

Can I use 94620 for a street address?

No. 94620 is only for PO Boxes. Street addresses in Piedmont use another ZIP code.

What ZIP codes are near 94620?

The nearest ZIP codes to 94620 are 94610 (Oakland, 1.1 miles), 94618 (Oakland, 1.4 miles), 94611 (Oakland, 1.6 miles) and 94622 (Oakland, 1.8 miles).

ZIP code 94620

Where is ZIP code 94620?

Piedmont, California

Alameda County · PO Box only ZIP code

ZIP code 94620 belongs to Piedmont, California in Alameda County. 94620 is a PO Box only ZIP code: it is used for post office boxes at the Piedmont post office, not for street addresses. It is in the Pacific Time zone and uses area code 510. The closest ZIP codes are 94610 (Oakland, 1.1 mi southwest), 94618 (Oakland, 1.4 mi north) and 94611 (Oakland, 1.6 mi north).

ZIP code	94620
Type	PO Box only (no street delivery)
Status	Active
City	Piedmont
Also accepted	Oakland
State	California (CA)
County	Alameda County
Time zone	Pacific Time · now
Area code	510
Coordinates	37.8244, -122.2316 map
3-digit prefix	946

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 94620

ZIP code	City	Distance	Type
94610	Oakland, CA	1.1 mi SW	Standard
94618	Oakland, CA	1.4 mi N	Standard
94611	Oakland, CA	1.6 mi N	Standard
94622	Oakland, CA	1.8 mi S	Unique
94609	Oakland, CA	1.9 mi NW	Standard
94602	Oakland, CA	2 mi SE	Standard
94606	Oakland, CA	2.1 mi S	Standard
94612	Oakland, CA	2.2 mi SW	Standard
94617	Oakland, CA	2.5 mi SW	Standard
94705	Berkeley, CA	2.5 mi NW	Standard
94604	Oakland, CA	2.5 mi SW	PO Box only
94623	Oakland, CA	2.5 mi SW	PO Box only

Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 94620 or measure the distance to another ZIP code.

How to address mail to 94620

JANE SMITH
PO BOX 123
PIEDMONT CA 94620

Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts OAKLAND as the city name for 94620. Adding the 4-digit ZIP+4 code (94620-XXXX) helps mail sort faster but isn’t required.

Questions

What city is ZIP code 94620?: 94620 is a Piedmont, California ZIP code. Oakland is also accepted as the city name.
What county is 94620 in?: ZIP code 94620 is in Alameda County, California.
What time zone is ZIP code 94620 in?: 94620 is in the Pacific Time zone (America/Los_Angeles).
What area code is 94620?: Phone numbers in ZIP code 94620 use area code 510.
Can I use 94620 for a street address?: No. 94620 is only for PO Boxes. Street addresses in Piedmont use another ZIP code.
What ZIP codes are near 94620?: The nearest ZIP codes to 94620 are 94610 (Oakland, 1.1 miles), 94618 (Oakland, 1.4 miles), 94611 (Oakland, 1.6 miles) and 94622 (Oakland, 1.8 miles).