El Cajon, CA ZIP Codes & Directory
El Cajon is located in San Diego County in California. Browse all active 5-digit USPS ZIP codes serving El Cajon and surrounding San Diego County delivery districts.
All ZIP Codes in El Cajon, CA
3 CodesAbout El Cajon Mail Delivery & Postal Administration
ZIP codes in El Cajon are administered by the United States Postal Service. Delivery routes are coordinated through regional Sectional Center Facilities (SCFs) servicing San Diego County and surrounding California metropolitan districts.
Frequently Asked Questions About El Cajon, CA ZIP Codes
How many ZIP codes serve El Cajon, California? ▾
El Cajon, California is served by 3 active USPS postal delivery codes: 92019, 92020, 92021.
What county is El Cajon located in? ▾
El Cajon is an incorporated city located within San Diego County, California.
What is the population and demographic size of El Cajon? ▾
According to official U.S. Census Bureau data, El Cajon has an estimated population of 176,146 residents and is situated within the undefined.
How does mail sorting and delivery work in El Cajon? ▾
Mail delivery in El Cajon is operated by the United States Postal Service (USPS) through regional Sectional Center Facility (SCF) distribution plants servicing San Diego County and surrounding California counties.
How much does it cost to ship a package to El Cajon, CA? ▾
Shipping costs to El Cajon depend on the package weight, dimensions, shipping carrier (USPS, UPS, FedEx), and the distance from the origin ZIP code. To calculate exact postage rates, use our shipping cost estimator tool.
What is the standard delivery time for mail to El Cajon? ▾
Standard USPS Ground Advantage typically takes 2-5 business days to reach El Cajon, depending on the origin. Priority Mail generally arrives in 1-3 business days. Please check tracking for specific regional routing times.