| City: | Flint, Michigan |
| Names to Avoid: | Gm Tech Center, Gm Vehicle Development Ctr |
| County: | Genesee County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 10:15:56 PM |
| Population: | No Population Data |
| Area Code: | 810 |
| Classification: | Unique [Company/Government] |
| Coordinates: | 43.0125, -83.6878 |
| Quick Link: |
GM Technology Center and Vehicle Development Center in Genesee County, Michigan, operate under dedicated ZIP code 48557. Located on Saginaw Street, these facilities serve GM's research, engineering, and vehicle testing operations in the Flint area. The ZIP+4 records identify both the GM Technical Center and GM Vehicle Development Center at this location.
This designation, added to postal records in October 2008, represents GM's engineering and development presence in the Flint region distinct from its manufacturing operations. While GM's primary technical center is located in Warren, Michigan, the Flint-area facilities provide specialized vehicle development and testing capabilities. The location reflects Flint's historical importance as GM's original hometown. Flint is the valid mailing city for this designation.
| Residential: | 0 |
| Business: | 1 |
Buildings registered in the USPS ZIP+4 database with designated codes for direct mail delivery.
ZIP Code 48557 is assigned to a single organization or institution. Detailed business demographics are not published for unique ZIP Codes. USPS data shows 0 residential mailboxes and 1 business mailboxes, reflecting local delivery coverage.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 1Source: USPS |
| Total Delivery Receptacles: | 1Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 0Source: CBP |
| 1st Quarter Payroll: | $0Source: CBP |
| Annual Payroll: | $0Source: CBP |
| # of Employees: | 0Source: CBP |
ZIP Code 48557 is located in Genesee County, Michigan, within the Flint, MI Metropolitan Statistical Area (CBSA 22420) and Michigan's 5th Congressional District. This Metro area has a population of 425,790 people, about 0.00% of whom live in ZIP Code 48557. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Flint, MISource: Census |
| CBSA Number: | 22420Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 425,790Source: Census |
| MSA: | Detroit-Ann Arbor-Flint, MI CMSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 05Source: USPS |
| Congressional Land Area: | 2348.7 sq miSource: Census |
| PMSA: | Flint, MI PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 2629000Source: Census |
| Place Name: | Flint city; MichiganSource: Census |
We could not locate which school district 48557 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.