ZIP Code 74840 — Earlsboro, OK
74840 is a standard (street delivery) ZIP code serving Earlsboro, Oklahoma, in Seminole 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 74840 at a glance
| ZIP code | 74840 |
|---|---|
| Primary city | Earlsboro |
| State | Oklahoma (OK) |
| County | Seminole FIPS 40133 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,827 |
| Coordinates | 35.304880, -96.766500 |
How ZIP+4 works in 74840
The four digits after the hyphen encode a delivery segment inside 74840. 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 74840 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 74840.
| ZIP | City | Distance |
|---|---|---|
| 74868 | Seminole, OK | 7.5 mi |
| 74804 | Shawnee, OK | 10.8 mi |
| 74801 | Shawnee, OK | 11.4 mi |
| 74830 | Bowlegs, OK | 12.5 mi |
| 74854 | Maud, OK | 13.1 mi |
| 74873 | Tecumseh, OK | 13.2 mi |
| 74864 | Prague, OK | 13.4 mi |
| 74884 | Wewoka, OK | 16.2 mi |
| 74855 | Meeker, OK | 16.7 mi |
| 74866 | Saint Louis, OK | 17.1 mi |
| 74837 | Cromwell, OK | 17.7 mi |
| 74852 | Macomb, OK | 18.5 mi |
Questions about 74840
What is the ZIP+4 code for 74840?
74840 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 74840, you need to look up a specific street address to get them.
What city is 74840?
74840 is assigned to Earlsboro, Oklahoma, in Seminole 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.