ZIP Code 48815 — Clarksville, MI
48815 is a standard (street delivery) ZIP code serving Clarksville, Michigan, in Ionia 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 48815 at a glance
| ZIP code | 48815 |
|---|---|
| Primary city | Clarksville |
| State | Michigan (MI) |
| County | Ionia FIPS 26067 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Detroit |
| Population | 2,364 |
| Coordinates | 42.841550, -85.253870 |
How ZIP+4 works in 48815
The four digits after the hyphen encode a delivery segment inside 48815. 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 48815 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 48815.
| ZIP | City | Distance |
|---|---|---|
| 49325 | Freeport, MI | 6 mi |
| 48849 | Lake Odessa, MI | 6.8 mi |
| 48881 | Saranac, MI | 6.9 mi |
| 49302 | Alto, MI | 7.4 mi |
| 49331 | Lowell, MI | 9.1 mi |
| 48897 | Woodland, MI | 11.3 mi |
| 48846 | Ionia, MI | 14.1 mi |
| 49058 | Hastings, MI | 14.5 mi |
| 49333 | Middleville, MI | 14.6 mi |
| 49301 | Ada, MI | 14.7 mi |
| 49512 | Grand Rapids, MI | 15.1 mi |
| 48890 | Sunfield, MI | 15.1 mi |
Questions about 48815
What is the ZIP+4 code for 48815?
48815 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 48815, you need to look up a specific street address to get them.
What city is 48815?
48815 is assigned to Clarksville, Michigan, in Ionia 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.