ZIP Code 76233 — Collinsville, TX
76233 is a standard (street delivery) ZIP code serving Collinsville, Texas, in Grayson 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 76233 at a glance
| ZIP code | 76233 |
|---|---|
| Primary city | Collinsville |
| State | Texas (TX) |
| County | Grayson FIPS 48181 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 3,711 |
| Coordinates | 33.540250, -96.896960 |
How ZIP+4 works in 76233
The four digits after the hyphen encode a delivery segment inside 76233. 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 76233 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 76233.
| ZIP | City | Distance |
|---|---|---|
| 76271 | Tioga, TX | 5 mi |
| 76268 | Southmayd, TX | 9.7 mi |
| 75058 | Gunter, TX | 11.3 mi |
| 76258 | Pilot Point, TX | 11.7 mi |
| 75459 | Howe, TX | 12.3 mi |
| 75092 | Sherman, TX | 13.6 mi |
| 76272 | Valley View, TX | 14.2 mi |
| 76264 | Sadler, TX | 14.3 mi |
| 76273 | Whitesboro, TX | 14.5 mi |
| 75009 | Celina, TX | 16.2 mi |
| 76241 | Gainesville, TX | 17.6 mi |
| 76240 | Gainesville, TX | 18 mi |
Questions about 76233
What is the ZIP+4 code for 76233?
76233 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 76233, you need to look up a specific street address to get them.
What city is 76233?
76233 is assigned to Collinsville, Texas, in Grayson 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.