ZIP Code 77879 — Somerville, TX
77879 is a standard (street delivery) ZIP code serving Somerville, Texas, in Burleson 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 77879 at a glance
| ZIP code | 77879 |
|---|---|
| Primary city | Somerville |
| State | Texas (TX) |
| County | Burleson FIPS 48051 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 4,611 |
| Coordinates | 30.400780, -96.493780 |
How ZIP+4 works in 77879
The four digits after the hyphen encode a delivery segment inside 77879. 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 77879 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 77879.
| ZIP | City | Distance |
|---|---|---|
| 77863 | Lyons, TX | 3.9 mi |
| 77878 | Snook, TX | 5.6 mi |
| 77833 | Brenham, TX | 14.2 mi |
| 77836 | Caldwell, TX | 14.5 mi |
| 77835 | Burton, TX | 15.4 mi |
| 77852 | Deanville, TX | 15.8 mi |
| 77845 | College Station, TX | 17.1 mi |
| 77843 | College Station, TX | 17.4 mi |
| 77840 | College Station, TX | 17.7 mi |
| 77866 | Millican, TX | 18 mi |
| 77801 | Bryan, TX | 18.2 mi |
| 77807 | Bryan, TX | 19.2 mi |
Questions about 77879
What is the ZIP+4 code for 77879?
77879 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 77879, you need to look up a specific street address to get them.
What city is 77879?
77879 is assigned to Somerville, Texas, in Burleson 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.