ZIP Code 79043 — Hart, TX
79043 is a standard (street delivery) ZIP code serving Hart, Texas, in Castro 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 79043 at a glance
| ZIP code | 79043 |
|---|---|
| Primary city | Hart |
| State | Texas (TX) |
| County | Castro FIPS 48069 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,462 |
| Coordinates | 34.367610, -102.137400 |
How ZIP+4 works in 79043
The four digits after the hyphen encode a delivery segment inside 79043. 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 79043 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 79043.
| ZIP | City | Distance |
|---|---|---|
| 79063 | Nazareth, TX | 10 mi |
| 79064 | Olton, TX | 13.1 mi |
| 79082 | Springlake, TX | 13.3 mi |
| 79027 | Dimmitt, TX | 14.3 mi |
| 79032 | Edmonson, TX | 14.9 mi |
| 79326 | Fieldton, TX | 19 mi |
| 79031 | Earth, TX | 19.8 mi |
| 79052 | Kress, TX | 21.3 mi |
| 79312 | Amherst, TX | 24.8 mi |
| 79041 | Hale Center, TX | 25.5 mi |
| 79053 | Lazbuddie, TX | 26 mi |
| 79072 | Plainview, TX | 26.1 mi |
Questions about 79043
What is the ZIP+4 code for 79043?
79043 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 79043, you need to look up a specific street address to get them.
What city is 79043?
79043 is assigned to Hart, Texas, in Castro 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.