ZIP Code 75645 — Gilmer, TX
75645 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 75645 at a glance
| ZIP code | 75645 |
|---|---|
| Primary city | Gilmer |
| State | Texas (TX) |
| County | Upshur FIPS 48459 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 10,400 |
| Coordinates | 32.683750, -94.873170 |
How ZIP+4 works in 75645
The four digits after the hyphen encode a delivery segment inside 75645. 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 75645 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 75645.
| ZIP | City | Distance |
|---|---|---|
| 75644 | Gilmer, TX | 10.3 mi |
| 75693 | White Oak, TX | 10.4 mi |
| 75640 | Diana, TX | 11.4 mi |
| 75605 | Longview, TX | 11.5 mi |
| 75604 | Longview, TX | 12 mi |
| 75683 | Ore City, TX | 12.3 mi |
| 75647 | Gladewater, TX | 12.7 mi |
| 75755 | Big Sandy, TX | 12.9 mi |
| 75601 | Longview, TX | 14.9 mi |
| 75668 | Lone Star, TX | 19 mi |
| 75651 | Harleton, TX | 19.9 mi |
| 75602 | Longview, TX | 20 mi |
Questions about 75645
What is the ZIP+4 code for 75645?
75645 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 75645, you need to look up a specific street address to get them.
What city is 75645?
75645 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.