ZIP Code 48370 — Oxford, MI
48370 is a standard (street delivery) ZIP code serving Oxford, Michigan, in Oakland 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 48370 at a glance
| ZIP code | 48370 |
|---|---|
| Primary city | Oxford |
| State | Michigan (MI) |
| County | Oakland FIPS 26125 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Detroit |
| Population | 1,777 |
| Coordinates | 42.837970, -83.199810 |
How ZIP+4 works in 48370
The four digits after the hyphen encode a delivery segment inside 48370. 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 48370 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.
Other ZIP codes in Oxford
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 48370.
| ZIP | City | Distance |
|---|---|---|
| 48367 | Leonard, MI | 3 mi |
| 48371 | Oxford, MI | 4.5 mi |
| 48363 | Oakland, MI | 4.9 mi |
| 48362 | Lake Orion, MI | 5.2 mi |
| 48360 | Lake Orion, MI | 7 mi |
| 48428 | Dryden, MI | 7.4 mi |
| 48065 | Romeo, MI | 8.1 mi |
| 48306 | Rochester, MI | 8.4 mi |
| 48455 | Metamora, MI | 8.4 mi |
| 48359 | Lake Orion, MI | 8.9 mi |
| 48095 | Washington, MI | 9.1 mi |
| 48003 | Almont, MI | 10.3 mi |
Questions about 48370
What is the ZIP+4 code for 48370?
48370 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 48370, you need to look up a specific street address to get them.
What city is 48370?
48370 is assigned to Oxford, Michigan, in Oakland 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.