ZIP Code 49406 — Douglas, MI
49406 is a standard (street delivery) ZIP code serving Douglas, Michigan, in Allegan 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 49406 at a glance
| ZIP code | 49406 |
|---|---|
| Primary city | Douglas |
| State | Michigan (MI) |
| County | Allegan FIPS 26005 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Detroit |
| Population | 1,085 |
| Coordinates | 42.642240, -86.209000 |
How ZIP+4 works in 49406
The four digits after the hyphen encode a delivery segment inside 49406. 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 49406 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 49406.
| ZIP | City | Distance |
|---|---|---|
| 49453 | Saugatuck, MI | 2.4 mi |
| 49408 | Fennville, MI | 6.9 mi |
| 49434 | Macatawa, MI | 8.8 mi |
| 49423 | Holland, MI | 9 mi |
| 49419 | Hamilton, MI | 12 mi |
| 49450 | Pullman, MI | 12.8 mi |
| 49424 | Holland, MI | 14.5 mi |
| 49090 | South Haven, MI | 16.1 mi |
| 49063 | Lacota, MI | 16.4 mi |
| 49464 | Zeeland, MI | 17.9 mi |
| 49056 | Grand Junction, MI | 18.4 mi |
| 49010 | Allegan, MI | 18.6 mi |
Questions about 49406
What is the ZIP+4 code for 49406?
49406 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 49406, you need to look up a specific street address to get them.
What city is 49406?
49406 is assigned to Douglas, Michigan, in Allegan 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.