ZIP Code 75240 — Dallas, TX
75240 is a standard (street delivery) ZIP code serving Dallas, Texas, in Dallas 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 75240 at a glance
| ZIP code | 75240 |
|---|---|
| Primary city | Dallas |
| State | Texas (TX) |
| County | Dallas FIPS 48113 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 25,290 |
| Coordinates | 32.931940, -96.789240 |
How ZIP+4 works in 75240
The four digits after the hyphen encode a delivery segment inside 75240. 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 75240 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 Dallas
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 75240.
| ZIP | City | Distance |
|---|---|---|
| 75254 | Dallas, TX | 1.2 mi |
| 75251 | Dallas, TX | 1.3 mi |
| 75230 | Dallas, TX | 2.1 mi |
| 75248 | Dallas, TX | 2.6 mi |
| 75244 | Dallas, TX | 2.8 mi |
| 75243 | Dallas, TX | 3.3 mi |
| 75001 | Addison, TX | 3.4 mi |
| 75080 | Richardson, TX | 4 mi |
| 75231 | Dallas, TX | 4.4 mi |
| 75252 | Dallas, TX | 4.5 mi |
| 75225 | Dallas, TX | 4.6 mi |
| 75081 | Richardson, TX | 4.8 mi |
Questions about 75240
What is the ZIP+4 code for 75240?
75240 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 75240, you need to look up a specific street address to get them.
What city is 75240?
75240 is assigned to Dallas, Texas, in Dallas 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.