| City: | Auburn Hills, Michigan |
| County: | Oakland County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 10:14:20 PM |
| Population: | No Population Data |
| Area Codes: | 248 / 586 / 810 / 947 |
| Classification: | PO Box |
| Coordinates: | 42.6398, -83.2944 |
| Quick Link: |
The ZIP operates alongside standard carrier delivery routes in the Auburn Hills area. Baldwin Road and Auburn Road represent the primary delivery corridors, with 101 street delivery records distributed between these two routes. The postal facility sits within the larger Pontiac metro area, serving customers who prefer PO Box service for business operations or personal convenience. The area's urban character means most residents have access to multiple mail delivery options.
The two streets reflect major roadways in the Auburn Hills area. Both roads have unit designations, indicating multi-tenant or business addresses along these corridors.
ZIP Code 48321 supports both business and residential activity. According to the Business Census (2024), there are 9 business establishments, employing about 236 people with an annual payroll of $9,708,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 744Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 9Source: CBP |
| 1st Quarter Payroll: | $2,474,000Source: CBP |
| Annual Payroll: | $9,708,000Source: CBP |
| # of Employees: | 236Source: CBP |
ZIP Code 48321 is located in Oakland County, Michigan, within the Detroit-Warren-Dearborn, MI Metropolitan Statistical Area (CBSA 19820) and Michigan's 11st Congressional District. This Metro area has a population of 4,296,250 people, about 0.00% of whom live in ZIP Code 48321, and is subdivided into the Warren-Troy-Farmington Hills, MI division. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Detroit-Warren-Dearborn, MISource: Census |
| CBSA Number: | 19820Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | Warren-Troy-Farmington Hills, MI (CBSA Div 47664)Source: Census |
| CBSA Population: | 4,296,250Source: Census |
| MSA: | Detroit-Ann Arbor-Flint, MI CMSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 11Source: USPS |
| Congressional Land Area: | 419.26 sq miSource: Census |
| PMSA: | Detroit, MI PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 2604105Source: Census |
| Place Name: | Auburn Hills city; MichiganSource: Census |
We could not locate which school district 48321 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.