ZIP Code 77864 — Madisonville, TX
77864 is a standard (street delivery) ZIP code serving Madisonville, Texas, in Madison 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 77864 at a glance
| ZIP code | 77864 |
|---|---|
| Primary city | Madisonville |
| State | Texas (TX) |
| County | Madison FIPS 48313 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 7,640 |
| Coordinates | 30.960870, -95.892970 |
How ZIP+4 works in 77864
The four digits after the hyphen encode a delivery segment inside 77864. 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 77864 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 77864.
| ZIP | City | Distance |
|---|---|---|
| 75852 | Midway, TX | 10.4 mi |
| 75850 | Leona, TX | 11.9 mi |
| 77872 | North Zulch, TX | 13.2 mi |
| 77871 | Normangee, TX | 14.2 mi |
| 77831 | Bedias, TX | 15.9 mi |
| 77855 | Flynn, TX | 18.3 mi |
| 77861 | Iola, TX | 20.3 mi |
| 75833 | Centerville, TX | 21.1 mi |
| 77320 | Huntsville, TX | 22.6 mi |
| 77876 | Shiro, TX | 24.7 mi |
| 77342 | Huntsville, TX | 25 mi |
| 75851 | Lovelady, TX | 25.3 mi |
Questions about 77864
What is the ZIP+4 code for 77864?
77864 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 77864, you need to look up a specific street address to get them.
What city is 77864?
77864 is assigned to Madisonville, Texas, in Madison 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.