About Postcode 48103
This postal code is assigned to Washtenaw Municipality County Washtenaw, Michigan, United States. This location-level postal code helps ensure accurate mail delivery and location identification.
Postal Code Format
United States uses numeric zip codes with 5 digits (example: 99553). In our directory, these codes are organized from states down to municipalities.
- 48 — State (Michigan)
- 10 — County (Washtenaw)
- 3 — Municipality (Washtenaw)
How to Use This Postcode 48103
When sending mail or packages to this area, use the postal code below to ensure accurate and timely delivery.
Address format example:
Recipient Name
House #, Street Name
Washtenaw
Washtenaw, Michigan
48103
United States
Domestic Mail
Include this postcode on all letters and packages sent within United States.
International Mail
For international deliveries, include "United States" on the last address line after the postcode.
Frequently Asked Questions
What area does this postcode cover?
This postcode covers Michigan → Washtenaw → Washtenaw in United States.
Is this a valid List Post Code?
Yes. 48103 is an active postcode for Michigan → Washtenaw → Washtenaw in United States. It follows the 5-character format used in this country.
How do I find the postal code for a specific address?
Search by state, county, and municipality to find the correct postcode in United States. Search Postcodes
Found incorrect info for 48103?
Useful Resources
Developer API
Get this data via API
Free JSON for postcode 48103.
https://api.listpostcode.com/v1/countries/US/postcodes/48103curl -H "x-api-key: YOUR_API_KEY" \
"https://api.listpostcode.com/v1/countries/US/postcodes/48103"Requests need a free API key.