ZIP Code 78951 — Oakland, TX
78951 is a standard (street delivery) ZIP code serving Oakland, Texas, in Colorado 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 78951 at a glance
| ZIP code | 78951 |
|---|---|
| Primary city | Oakland |
| State | Texas (TX) |
| County | Colorado FIPS 48089 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Coordinates | 29.613610, -96.837460 |
How ZIP+4 works in 78951
The four digits after the hyphen encode a delivery segment inside 78951. 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 78951 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 78951.
| ZIP | City | Distance |
|---|---|---|
| 78962 | Weimar, TX | 7.1 mi |
| 78956 | Schulenburg, TX | 7.5 mi |
| 77986 | Sublime, TX | 9.8 mi |
| 77475 | Sheridan, TX | 13 mi |
| 77975 | Moulton, TX | 15.4 mi |
| 78943 | Glidden, TX | 15.6 mi |
| 77964 | Hallettsville, TX | 16.1 mi |
| 78938 | Ellinger, TX | 16.8 mi |
| 78934 | Columbus, TX | 17.3 mi |
| 77470 | Rock Island, TX | 18.1 mi |
| 78945 | La Grange, TX | 21.1 mi |
| 78941 | Flatonia, TX | 21.1 mi |
Questions about 78951
What is the ZIP+4 code for 78951?
78951 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 78951, you need to look up a specific street address to get them.
What city is 78951?
78951 is assigned to Oakland, Texas, in Colorado 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.