ZIP Code 48723 — Caro, MI
48723 is a standard (street delivery) ZIP code serving Caro, Michigan, in Tuscola 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 48723 at a glance
| ZIP code | 48723 |
|---|---|
| Primary city | Caro |
| State | Michigan (MI) |
| County | Tuscola FIPS 26157 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Detroit |
| Population | 11,678 |
| Coordinates | 43.486100, -83.384990 |
How ZIP+4 works in 48723
The four digits after the hyphen encode a delivery segment inside 48723. 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 48723 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 48723.
| ZIP | City | Distance |
|---|---|---|
| 48744 | Mayville, MI | 9.6 mi |
| 48729 | Deford, MI | 10.4 mi |
| 48701 | Akron, MI | 10.7 mi |
| 48733 | Fairgrove, MI | 10.8 mi |
| 48767 | Unionville, MI | 11.3 mi |
| 48741 | Kingston, MI | 11.6 mi |
| 48768 | Vassar, MI | 12.5 mi |
| 48760 | Silverwood, MI | 13.1 mi |
| 48726 | Cass City, MI | 13.7 mi |
| 48735 | Gagetown, MI | 13.8 mi |
| 48757 | Reese, MI | 14.8 mi |
| 48727 | Clifford, MI | 16.1 mi |
Questions about 48723
What is the ZIP+4 code for 48723?
48723 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 48723, you need to look up a specific street address to get them.
What city is 48723?
48723 is assigned to Caro, Michigan, in Tuscola 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.