| City: | Sylmar, California |
| County: | Los Angeles County |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 9:36:46 AM |
| Population: | No Population Data |
| Area Codes: | 747 / 818 |
| Classification: | PO Box |
| Coordinates: | 34.3076, -118.4485 |
| Quick Link: |
ZIP code 91392 serves a branch post office in Sylmar, a neighborhood in Los Angeles's San Fernando Valley. This isn't a standalone community. It's a postal point within the larger 91342 ZIP that provides PO Box services to local residents and businesses.
The post office maintains 767 PO Boxes and serves 278 business delivery points. With 1,057 workers employed at just 12 establishments, this location anchors a small but active commercial district along Foothill Boulevard. All 179 street-type ZIP+4 records point to this single thoroughfare.
Sylmar sits at the northern edge of Los Angeles, bordered by the city of San Fernando and the neighborhoods of Pacoima and Mission Hills. Residents here have full street delivery through the parent ZIP code 91342, making PO Boxes a convenience rather than a necessity. Many businesses and residents choose PO Boxes for privacy, package security, or a consistent address.
The branch facility (indicated by its "B" facility code) operates as a neighborhood service point rather than a main post office. It handles local mail needs while the broader Sylmar community receives carrier delivery through standard routes.
All delivery points are on Foothill Boulevard, a major commercial artery through the San Fernando Valley.
ZIP Code 91392 supports both business and residential activity. According to the Business Census (2024), there are 13 business establishments, employing about 1,098 people with an annual payroll of $124,076,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 5,042Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 13Source: CBP |
| 1st Quarter Payroll: | $39,177,000Source: CBP |
| Annual Payroll: | $124,076,000Source: CBP |
| # of Employees: | 1,098Source: CBP |
ZIP Code 91392 is located in Los Angeles County, California, within the Los Angeles-Long Beach-Anaheim, CA Metropolitan Statistical Area (CBSA 31080) and California's 29th Congressional District. This Metro area has a population of 0 people, about 0.00% of whom live in ZIP Code 91392, and is subdivided into the Los Angeles-Long Beach-Glendale, CA division. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Los Angeles-Long Beach-Anaheim, CASource: Census |
| CBSA Number: | 31080Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | Los Angeles-Long Beach-Glendale, CA (CBSA Div 31084)Source: Census |
| CBSA Population: | 0Source: Census |
| MSA: | Los Angeles-Riverside-Orange County, CASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 29Source: USPS |
| Congressional Land Area: | 92.03 sq miSource: Census |
| PMSA: | Los Angeles-Long Beach, CA PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | --Source: Census |
| Place Name: | --Source: Census |
We could not locate which school district 91392 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.