ZIP Code 77575 — Liberty, TX
77575 is a standard (street delivery) ZIP code serving Liberty, Texas, in Liberty 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 77575 at a glance
| ZIP code | 77575 |
|---|---|
| Primary city | Liberty |
| State | Texas (TX) |
| County | Liberty FIPS 48291 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 16,613 |
| Coordinates | 30.077380, -94.736660 |
How ZIP+4 works in 77575
The four digits after the hyphen encode a delivery segment inside 77575. 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 77575 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 77575.
| ZIP | City | Distance |
|---|---|---|
| 77561 | Hardin, TX | 3.9 mi |
| 77582 | Raywood, TX | 6.6 mi |
| 77533 | Daisetta, TX | 8.5 mi |
| 77564 | Hull, TX | 10.7 mi |
| 77535 | Dayton, TX | 10.8 mi |
| 77519 | Batson, TX | 12.9 mi |
| 77538 | Devers, TX | 13.1 mi |
| 77560 | Hankamer, TX | 16.9 mi |
| 77597 | Wallisville, TX | 17.4 mi |
| 77580 | Mont Belvieu, TX | 17.5 mi |
| 77659 | Sour Lake, TX | 19 mi |
| 77585 | Saratoga, TX | 19.7 mi |
Questions about 77575
What is the ZIP+4 code for 77575?
77575 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 77575, you need to look up a specific street address to get them.
What city is 77575?
77575 is assigned to Liberty, Texas, in Liberty 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.