ZIP Code 91990 is located in the county of San Diego in the state of California. 91990 ZIP Code is spread between the coordinates of +32.6 Latitude and -116.61 Longitude. 91990 ZIP Code is part of the 619 area code. There are 0 postal offices in zip code 91990.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 91990. Always when you mail a package or a letter, be attentive to mention the preferred or acceptable cities. Using any city in the list of unacceptable cities may result in unforseen delays.