ZIP Code 75644 — Gilmer, TX
75644 is a standard (street delivery) ZIP code serving Gilmer, Texas, in Upshur 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 75644 at a glance
| ZIP code | 75644 |
|---|---|
| Primary city | Gilmer |
| State | Texas (TX) |
| County | Upshur FIPS 48459 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 12,774 |
| Coordinates | 32.791710, -94.994980 |
How ZIP+4 works in 75644
The four digits after the hyphen encode a delivery segment inside 75644. 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 75644 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.
Other ZIP codes in Gilmer
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 75644.
| ZIP | City | Distance |
|---|---|---|
| 75645 | Gilmer, TX | 10.3 mi |
| 75755 | Big Sandy, TX | 12.2 mi |
| 75686 | Pittsburg, TX | 12.6 mi |
| 75451 | Leesburg, TX | 13.8 mi |
| 75683 | Ore City, TX | 14.9 mi |
| 75765 | Hawkins, TX | 17.4 mi |
| 75494 | Winnsboro, TX | 17.4 mi |
| 75640 | Diana, TX | 18.9 mi |
| 75647 | Gladewater, TX | 19.1 mi |
| 75693 | White Oak, TX | 19.4 mi |
| 75480 | Scroggins, TX | 19.5 mi |
| 75668 | Lone Star, TX | 19.7 mi |
Questions about 75644
What is the ZIP+4 code for 75644?
75644 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 75644, you need to look up a specific street address to get them.
What city is 75644?
75644 is assigned to Gilmer, Texas, in Upshur 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.