ZIP Code 48430 — Fenton, MI
48430 is a standard (street delivery) ZIP code serving Fenton, Michigan, in Livingston 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 48430 at a glance
| ZIP code | 48430 |
|---|---|
| Primary city | Fenton |
| State | Michigan (MI) |
| County | Livingston FIPS 26093 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Detroit |
| Population | 39,309 |
| Coordinates | 42.757520, -83.742080 |
How ZIP+4 works in 48430
The four digits after the hyphen encode a delivery segment inside 48430. 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 48430 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 48430.
| ZIP | City | Distance |
|---|---|---|
| 48451 | Linden, MI | 4.9 mi |
| 48442 | Holly, MI | 7.5 mi |
| 48353 | Hartland, MI | 7.7 mi |
| 48357 | Highland, MI | 8.7 mi |
| 48855 | Howell, MI | 9.9 mi |
| 48436 | Gaines, MI | 10.4 mi |
| 48356 | Highland, MI | 10.5 mi |
| 48816 | Cohoctah, MI | 10.6 mi |
| 48350 | Davisburg, MI | 10.6 mi |
| 48418 | Byron, MI | 12 mi |
| 48439 | Grand Blanc, MI | 12.4 mi |
| 48383 | White Lake, MI | 12.6 mi |
Questions about 48430
What is the ZIP+4 code for 48430?
48430 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 48430, you need to look up a specific street address to get them.
What city is 48430?
48430 is assigned to Fenton, Michigan, in Livingston 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.