ZIP Code 49304 — Baldwin, MI
49304 is a standard (street delivery) ZIP code serving Baldwin, Michigan, in Lake 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 49304 at a glance
| ZIP code | 49304 |
|---|---|
| Primary city | Baldwin |
| State | Michigan (MI) |
| County | Lake FIPS 26085 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Detroit |
| Population | 5,408 |
| Coordinates | 43.910270, -85.874170 |
How ZIP+4 works in 49304
The four digits after the hyphen encode a delivery segment inside 49304. 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 49304 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 49304.
| ZIP | City | Distance |
|---|---|---|
| 49642 | Idlewild, MI | 5.6 mi |
| 49402 | Branch, MI | 8.2 mi |
| 49623 | Chase, MI | 9.5 mi |
| 49309 | Bitely, MI | 10.4 mi |
| 49458 | Walhalla, MI | 12.3 mi |
| 49656 | Luther, MI | 13.2 mi |
| 49644 | Irons, MI | 13.8 mi |
| 49410 | Fountain, MI | 15.3 mi |
| 49312 | Brohman, MI | 15.6 mi |
| 49405 | Custer, MI | 15.7 mi |
| 49677 | Reed City, MI | 16.5 mi |
| 49459 | Walkerville, MI | 16.7 mi |
Questions about 49304
What is the ZIP+4 code for 49304?
49304 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 49304, you need to look up a specific street address to get them.
What city is 49304?
49304 is assigned to Baldwin, Michigan, in Lake 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.