| City: | Ann Arbor, Michigan |
| County: | Washtenaw County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 10:12:31 PM |
| Population: | No Population Data |
| Area Code: | 734 |
| Classification: | PO Box |
| Coordinates: | 42.2836, -83.7455 |
| Quick Link: |
ZIP code 48113 serves as a PO Box facility for Ann Arbor, Michigan, handling 214 boxes for residents and 244 business addresses in Washtenaw County. Unlike many PO Box ZIPs, this isn't an isolated community—it shares the Ann Arbor name and serves customers who have street delivery through neighboring ZIP 48105.
The single street route on Green Road demonstrates this ZIP's hybrid character. While classified as a PO Box ZIP, the facility maintains one city carrier route serving delivery points along that corridor. This arrangement is typical for suburban post offices that provide both box rentals and limited street delivery in their immediate vicinity.
With just Green Road in the street directory, this facility concentrates its carrier delivery on one corridor while serving hundreds of box customers from across the broader Ann Arbor area.
ZIP Code 48113 supports both business and residential activity. According to the Business Census (2024), there are 5 business establishments, employing about 40 people with an annual payroll of $1,104,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 461Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 5Source: CBP |
| 1st Quarter Payroll: | $241,000Source: CBP |
| Annual Payroll: | $1,104,000Source: CBP |
| # of Employees: | 40Source: CBP |
ZIP Code 48113 is located in Washtenaw County, Michigan, within the Ann Arbor, MI Metropolitan Statistical Area (CBSA 11460) and Michigan's 6th Congressional District. This Metro area has a population of 344,791 people, about 0.00% of whom live in ZIP Code 48113. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Ann Arbor, MISource: Census |
| CBSA Number: | 11460Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 344,791Source: Census |
| MSA: | Detroit-Ann Arbor-Flint, MI CMSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 06Source: USPS |
| Congressional Land Area: | 3546.74 sq miSource: Census |
| PMSA: | Ann Arbor, MI PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 2603000Source: Census |
| Place Name: | Ann Arbor city; MichiganSource: Census |
We could not locate which school district 48113 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.