ZIP Code 73048 — Hydro, OK
73048 is a standard (street delivery) ZIP code serving Hydro, Oklahoma, in Caddo 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 73048 at a glance
| ZIP code | 73048 |
|---|---|
| Primary city | Hydro |
| State | Oklahoma (OK) |
| County | Caddo FIPS 40015 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 2,149 |
| Coordinates | 35.489290, -98.553780 |
How ZIP+4 works in 73048
The four digits after the hyphen encode a delivery segment inside 73048. 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 73048 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 73048.
| ZIP | City | Distance |
|---|---|---|
| 73096 | Weatherford, OK | 10 mi |
| 73053 | Lookeba, OK | 11.6 mi |
| 73021 | Colony, OK | 12.3 mi |
| 73033 | Eakly, OK | 12.6 mi |
| 73047 | Hinton, OK | 13.6 mi |
| 73040 | Geary, OK | 14.5 mi |
| 73024 | Corn, OK | 17 mi |
| 73009 | Binger, OK | 17.4 mi |
| 73043 | Greenfield, OK | 19.3 mi |
| 73001 | Albert, OK | 19.7 mi |
| 73669 | Thomas, OK | 20.9 mi |
| 73601 | Clinton, OK | 22.1 mi |
Questions about 73048
What is the ZIP+4 code for 73048?
73048 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 73048, you need to look up a specific street address to get them.
What city is 73048?
73048 is assigned to Hydro, Oklahoma, in Caddo 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.