The postal facility assigns one street route to South Central Avenue with 175 delivery records marked as city carrier units. This creates an unusual situation where the ZIP code has both PO Box infrastructure and a single street designation, yet operates primarily as a business mail hub. The 2,860 ZIP+4 records show that 94% are PO Box addresses, with only 6% designated as street delivery points. That ratio suggests this ZIP serves as a mailing address for entities that prefer or require PO Box services rather than a residential community with typical household delivery patterns.
With only one street designation, this ZIP code functions more as a postal facility identifier than a geographic delivery zone. South Central Avenue's 175 records represent business addresses or units using this location as a mailing point.
ZIP Code 90051 supports both business and residential activity. According to the Business Census (2024), there are 4 business establishments, employing about 65 people with an annual payroll of $1,532,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 649Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 4Source: CBP |
| 1st Quarter Payroll: | $377,000Source: CBP |
| Annual Payroll: | $1,532,000Source: CBP |
| # of Employees: | 65Source: CBP |
ZIP Code 90051 is located in Los Angeles County, California, within the Los Angeles-Long Beach-Anaheim, CA Metropolitan Statistical Area (CBSA 31080) and California's 34th and 37th Congressional Districts. This Metro area has a population of 0 people, about 0.00% of whom live in ZIP Code 90051, 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: | 34,37Source: USPS |
| Congressional Land Area: | 47.66, 55.26 sq miSource: Census |
| PMSA: | Los Angeles-Long Beach, CA PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 0644000Source: Census |
| Place Name: | Los Angeles city; CaliforniaSource: Census |
We could not locate which school district 90051 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 March 1, 2026.