ZIP Code 44555 — Youngstown, OH
44555 is a standard (street delivery) ZIP code serving Youngstown, Ohio, in Mahoning 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 44555 at a glance
| ZIP code | 44555 |
|---|---|
| Primary city | Youngstown |
| State | Ohio (OH) |
| County | Mahoning FIPS 39099 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 169 |
| Coordinates | 41.107260, -80.648750 |
How ZIP+4 works in 44555
The four digits after the hyphen encode a delivery segment inside 44555. 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 44555 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.
Other ZIP codes in Youngstown
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 44555.
| ZIP | City | Distance |
|---|---|---|
| 44503 | Youngstown, OH | 0.6 mi |
| 44504 | Youngstown, OH | 1.1 mi |
| 44506 | Youngstown, OH | 1.5 mi |
| 44510 | Youngstown, OH | 1.7 mi |
| 44502 | Youngstown, OH | 1.7 mi |
| 44505 | Youngstown, OH | 2.2 mi |
| 44507 | Youngstown, OH | 2.3 mi |
| 44509 | Youngstown, OH | 2.5 mi |
| 44511 | Youngstown, OH | 3.6 mi |
| 44405 | Campbell, OH | 3.6 mi |
| 44420 | Girard, OH | 4.8 mi |
| 44471 | Struthers, OH | 5.1 mi |
Questions about 44555
What is the ZIP+4 code for 44555?
44555 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 44555, you need to look up a specific street address to get them.
What city is 44555?
44555 is assigned to Youngstown, Ohio, in Mahoning 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.