ZIP Code 49229 — Britton, MI
49229 is a standard (street delivery) ZIP code serving Britton, Michigan, in Lenawee 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 49229 at a glance
| ZIP code | 49229 |
|---|---|
| Primary city | Britton |
| State | Michigan (MI) |
| County | Lenawee FIPS 26091 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Detroit |
| Population | 3,540 |
| Coordinates | 41.990050, -83.826550 |
How ZIP+4 works in 49229
The four digits after the hyphen encode a delivery segment inside 49229. 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 49229 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 49229.
| ZIP | City | Distance |
|---|---|---|
| 49286 | Tecumseh, MI | 5.8 mi |
| 49238 | Deerfield, MI | 6.1 mi |
| 48131 | Dundee, MI | 8.1 mi |
| 49236 | Clinton, MI | 8.8 mi |
| 49268 | Palmyra, MI | 9.6 mi |
| 48160 | Milan, MI | 9.9 mi |
| 48176 | Saline, MI | 11.1 mi |
| 49270 | Petersburg, MI | 11.2 mi |
| 49228 | Blissfield, MI | 13.2 mi |
| 49287 | Tipton, MI | 13.3 mi |
| 49276 | Riga, MI | 13.5 mi |
| 49221 | Adrian, MI | 13.6 mi |
Questions about 49229
What is the ZIP+4 code for 49229?
49229 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 49229, you need to look up a specific street address to get them.
What city is 49229?
49229 is assigned to Britton, Michigan, in Lenawee 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.