| City: | San Mateo, California |
| Names to Avoid: | Postal Data Center |
| County: | San Mateo County |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 10:58:54 PM |
| Population: | No Population Data |
| Area Code: | 650 |
| Classification: | Unique [Company/Government] |
| Coordinates: | 37.5633, -122.3246 |
| Quick Link: |
The United States Postal Service Postal Data Center (PDC) operates under dedicated ZIP code 94497 in San Mateo County, California. This facility serves as a critical hub for USPS information technology, accounting, and administrative operations supporting postal services across the Pacific region. The PDC handles computing operations, financial services, and investigative functions essential to USPS national operations.
Located in the Beresford Park neighborhood of South San Mateo, approximately 15 miles from San Francisco, this designation has served USPS since before 2004. Postal records identify 16 ZIP+4 codes serving 14 distinct departments including the Computer Operations Division, Accounting Service Center, Pacific Area Accounting Office, and the United States Postal Inspection Service. The Office of Inspector General and Integrated Business Solutions System also maintain addresses here. Census Business Patterns reports 6 establishments employing 47 workers, reflecting the administrative rather than mail-processing nature of this facility.
No residential population exists within this ZIP, consistent with its function as a federal administrative campus. San Mateo is the valid mailing city for this designation.
| Establishments: | 6 |
| Employment: | 47 |
| Residential: | 0 |
| Business: | 2 |
Buildings registered in the USPS ZIP+4 database with designated codes for direct mail delivery.
ZIP Code 94497 supports both business and residential activity. According to the Business Census (2024), there are 6 business establishments, employing about 48 people with an annual payroll of $3,698,000. USPS data shows 0 residential mailboxes and 2 business mailboxes, reflecting local delivery coverage.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 2Source: USPS |
| Total Delivery Receptacles: | 3,229Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 6Source: CBP |
| 1st Quarter Payroll: | $978,000Source: CBP |
| Annual Payroll: | $3,698,000Source: CBP |
| # of Employees: | 48Source: CBP |
ZIP Code 94497 is located in San Mateo County, California, within the San Francisco-Oakland-Fremont, CA Metropolitan Statistical Area (CBSA 41860) and California's 15th Congressional District. This Metro area has a population of 4,653,593 people, about 0.00% of whom live in ZIP Code 94497, and is subdivided into the San Francisco-San Mateo-Redwood City, 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: | San Francisco-San Mateo-Redwood City, CA (CBSA Div 41884)Source: Census |
| CBSA Population: | 4,653,593Source: Census |
| MSA: | San Francisco-Oakland-San Jose, CA CMSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 15Source: USPS |
| Congressional Land Area: | 599.45 sq miSource: Census |
| PMSA: | San Francisco, CA PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 0668252Source: Census |
| Place Name: | San Mateo city; CaliforniaSource: Census |
We could not locate which school district 94497 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 January 1, 2026.