| City: | Petaluma, California |
| County: | Sonoma County |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 9:54:24 AM |
| Population: | No Population Data |
| Area Codes: | 369 / 707 |
| Classification: | PO Box |
| Coordinates: | 38.2346, -122.6364 |
| Quick Link: |
ZIP code 94975 is a PO Box-only designation within Petaluma, California. It doesn't cover a residential area. Instead, it serves as a dedicated mail facility contained entirely within the boundaries of ZIP 94954, the larger Petaluma ZIP.
The post office maintains 482 PO Boxes and serves 274 businesses. All 101 ZIP+4 street-type records point to a single address: N McDowell Boulevard. This pattern indicates a commercial facility where businesses rent PO Boxes or maintain mail receiving services rather than a traditional post office serving a neighborhood.
This isn't a PO Box Only Zone. Petaluma residents have standard street delivery available through the city's other ZIP codes (94952, 94954). The 94975 ZIP exists specifically for PO Box customers and businesses that want a dedicated Petaluma address separate from their street location.
Petaluma sits in Sonoma County, about 37 miles north of San Francisco. The city's main ZIP codes handle residential and commercial delivery, while 94975 provides an alternative for those who prefer or need PO Box service.
All records point to a single commercial address on N McDowell Boulevard, indicating a dedicated mail facility.
ZIP Code 94975 supports both business and residential activity. According to the Business Census (2024), there are 8 business establishments, employing about 49 people with an annual payroll of $4,159,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 741Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 8Source: CBP |
| 1st Quarter Payroll: | $899,000Source: CBP |
| Annual Payroll: | $4,159,000Source: CBP |
| # of Employees: | 49Source: CBP |
ZIP Code 94975 is located in Sonoma County, California, within the Santa Rosa-Petaluma, CA Metropolitan Statistical Area (CBSA 42220) and California's 2nd Congressional District. This Metro area has a population of 483,878 people, about 0.00% of whom live in ZIP Code 94975. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Santa Rosa-Petaluma, CASource: Census |
| CBSA Number: | 42220Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 483,878Source: Census |
| MSA: | San Francisco-Oakland-San Jose, CA CMSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 02Source: USPS |
| Congressional Land Area: | 12952.23 sq miSource: Census |
| PMSA: | Santa Rosa, CA PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 0656784Source: Census |
| Place Name: | Petaluma city; CaliforniaSource: Census |
We could not locate which school district 94975 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.