| City: | Hayward, California |
| County: | Alameda County |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 9:52:31 AM |
| Population: | No Population Data |
| Area Codes: | 341 / 510 / 925 |
| Classification: | PO Box |
| Coordinates: | 37.6687, -122.0799 |
| Quick Link: |
The facility serves 229 businesses alongside individual box holders. Santa Clara Street receives carrier route delivery with 80 address records, primarily serving commercial units. Street delivery for the surrounding Hayward area operates through neighboring ZIP 94544, which handles residential addresses. This arrangement is typical in urban areas where the postal service separates PO Box operations from standard carrier routes.
Hayward's Santa Clara neighborhood sits in the central part of the city, close to Southgate and Burbank neighborhoods. The post office's location makes it accessible to residents from multiple nearby areas. Box holders appreciate the convenience of a central pickup point, especially for businesses that receive frequent deliveries or need a permanent mailing address separate from their physical location.
Only Santa Clara Street receives carrier service in this ZIP, with all 80 records designated for commercial units rather than residential addresses.
ZIP Code 94540 supports both business and residential activity. According to the Business Census (2024), there are 9 business establishments, employing about 90 people with an annual payroll of $7,147,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 4,058Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 9Source: CBP |
| 1st Quarter Payroll: | $1,989,000Source: CBP |
| Annual Payroll: | $7,147,000Source: CBP |
| # of Employees: | 90Source: CBP |
ZIP Code 94540 is located in Alameda County, California, within the San Francisco-Oakland-Fremont, CA Metropolitan Statistical Area (CBSA 41860) and California's 14th Congressional District. This Metro area has a population of 4,335,391 people, about 0.00% of whom live in ZIP Code 94540, and is subdivided into the Oakland-Fremont-Berkeley, CA division. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | San Francisco-Oakland-Fremont, CASource: Census |
| CBSA Number: | 41860Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | Oakland-Fremont-Berkeley, CA (CBSA Div 36084)Source: Census |
| CBSA Population: | 4,335,391Source: Census |
| MSA: | San Francisco-Oakland-San Jose, CA CMSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 14Source: USPS |
| Congressional Land Area: | 259.5 sq miSource: Census |
| PMSA: | Oakland, CA PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 0633000Source: Census |
| Place Name: | Hayward city; CaliforniaSource: Census |
ZIP Code 94540 is in the Hayward Unified School District, which serves grades Kindergarten thru 12th. There are 5 public school(s) in this ZIP Code, and we have located 3 private school(s). 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.