ZIP Code 49266 — Osseo, MI
49266 is a standard (street delivery) ZIP code serving Osseo, Michigan, in Hillsdale 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 49266 at a glance
| ZIP code | 49266 |
|---|---|
| Primary city | Osseo |
| State | Michigan (MI) |
| County | Hillsdale FIPS 26059 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Detroit |
| Population | 2,982 |
| Coordinates | 41.842470, -84.546410 |
How ZIP+4 works in 49266
The four digits after the hyphen encode a delivery segment inside 49266. 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 49266 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 49266.
| ZIP | City | Distance |
|---|---|---|
| 49242 | Hillsdale, MI | 4.6 mi |
| 49271 | Pittsford, MI | 4.8 mi |
| 49262 | North Adams, MI | 9.2 mi |
| 49288 | Waldron, MI | 9.4 mi |
| 49232 | Camden, MI | 9.4 mi |
| 49247 | Hudson, MI | 10.5 mi |
| 49274 | Reading, MI | 11.2 mi |
| 43554 | Pioneer, OH | 12.6 mi |
| 43501 | Alvordton, OH | 12.7 mi |
| 49250 | Jonesville, MI | 12.8 mi |
| 49249 | Jerome, MI | 13.3 mi |
| 49227 | Allen, MI | 13.7 mi |
Questions about 49266
What is the ZIP+4 code for 49266?
49266 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 49266, you need to look up a specific street address to get them.
What city is 49266?
49266 is assigned to Osseo, Michigan, in Hillsdale 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.