ZIP Code 74837 — Cromwell, OK
74837 is a standard (street delivery) ZIP code serving Cromwell, 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 74837 at a glance
| ZIP code | 74837 |
|---|---|
| Primary city | Cromwell |
| State | Oklahoma (OK) |
| County | Seminole FIPS 40133 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 153 |
| Coordinates | 35.343210, -96.456100 |
How ZIP+4 works in 74837
The four digits after the hyphen encode a delivery segment inside 74837. 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 74837 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 74837.
| ZIP | City | Distance |
|---|---|---|
| 74859 | Okemah, OK | 11.3 mi |
| 74884 | Wewoka, OK | 11.4 mi |
| 74868 | Seminole, OK | 11.7 mi |
| 74829 | Boley, OK | 11.8 mi |
| 74860 | Paden, OK | 14.2 mi |
| 74883 | Wetumka, OK | 14.4 mi |
| 74833 | Castle, OK | 16.7 mi |
| 74864 | Prague, OK | 17.3 mi |
| 74840 | Earlsboro, OK | 17.7 mi |
| 74830 | Bowlegs, OK | 18 mi |
| 74880 | Weleetka, OK | 19 mi |
| 74848 | Holdenville, OK | 19 mi |
Questions about 74837
What is the ZIP+4 code for 74837?
74837 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 74837, you need to look up a specific street address to get them.
What city is 74837?
74837 is assigned to Cromwell, 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.