ZIP Code 48003 — Almont, MI
48003 is a standard (street delivery) ZIP code serving Almont, Michigan, in Lapeer County. To mail something here you only need these five digits — but the four-digit extension narrows delivery to a single point, and it is what USPS bulk postage discounts are priced on.
ZIP code 48003 at a glance
| ZIP code | 48003 |
|---|---|
| Primary city | Almont |
| State | Michigan (MI) |
| County | Lapeer FIPS 26087 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Detroit |
| Population | 6,339 |
| Coordinates | 42.932280, -83.040880 |
How ZIP+4 works in 48003
The four digits after the hyphen encode a delivery segment inside 48003. In practice one segment usually means:
- One side of one block — odd numbers on a street between two cross streets
- A single large building, or one floor of it
- A group of PO boxes, sometimes a single box
- A single business that receives enough mail to warrant its own code
That is why 48003 has no single ZIP+4: two neighbors across the street from each other usually have different ones. Enter a street address above and we will return the exact nine-digit code along with the standardized USPS address format.
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 48003.
| ZIP | City | Distance |
|---|---|---|
| 48428 | Dryden, MI | 5.4 mi |
| 48002 | Allenton, MI | 5.8 mi |
| 48065 | Romeo, MI | 6 mi |
| 48367 | Leonard, MI | 8 mi |
| 48005 | Armada, MI | 8.2 mi |
| 48014 | Capac, MI | 8.4 mi |
| 48444 | Imlay City, MI | 9.2 mi |
| 48370 | Oxford, MI | 10.3 mi |
| 48095 | Washington, MI | 10.5 mi |
| 48412 | Attica, MI | 11.2 mi |
| 48041 | Memphis, MI | 12 mi |
| 48363 | Oakland, MI | 12.6 mi |
Questions about 48003
What is the ZIP+4 code for 48003?
48003 is the five-digit ZIP code. The ZIP+4 adds four more digits that identify a specific delivery point — usually one side of a city block, a single building, or a group of PO boxes. Because those four digits change from address to address within 48003, you need to look up a specific street address to get them.
What city is 48003?
48003 is assigned to Almont, Michigan, in Lapeer County.
Do I need to use the ZIP+4?
It is optional for ordinary mail, but it speeds up sorting and it is required for most USPS bulk-mail postage discounts. Many address-verification and e-commerce systems also use ZIP+4 to confirm a delivery point exists.
Need thousands of these?
Upload a CSV and get ZIP+4, county, carrier route, and delivery-point data appended to every row — or call the API directly.