Palo Alto, California ZIP Code - United States

The location Palo Alto, CA has 7 differents ZIP Codes. Check the map below to check your ZIP Code.

	City Name	ZIP Code	ZIP Type	Estimated Population
Palo Alto, CA	PRIMARY	94301	STANDARD	14.401
Palo Alto, CA	PRIMARY	94302	PO BOX	645
Palo Alto, CA	PRIMARY	94303	STANDARD	34.099
Palo Alto, CA	PRIMARY	94304	STANDARD	2.781
Palo Alto, CA	ACCEPTABLE	94305	STANDARD	5.084
Palo Alto, CA	PRIMARY	94306	STANDARD	22.810
Palo Alto, CA	PRIMARY	94309	PO BOX	946

Postal Zone of Palo Alto, CA - USA

Palo Alto, CA belongs to Santa Clara county. Check the list of Santa Clara county ZIP Code.

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PRIMARY: means an the primary city name. Official city name, although the city name might also have another acceptable name.
ACCEPTABLE: means an adequate city name. City names that are abbreviated will frequently be listed as unacceptable because abbreviations are not an acceptable city name format.
IMPROPER/NOT ACCEPTABLE: Means an inadequate city name has been entered or received based on information entered.
UNIQUE: Assigned to a company, government agency, or entity with sufficient mail volume, based on average daily volume of letter size mail received, availability of ZIP Code numbers in the postal area, and the US mail service cost-benefit analysis.