ZIP Code 45005 — Franklin, OH
45005 is a standard (street delivery) ZIP code serving Franklin, Ohio, in Warren 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 45005 at a glance
| ZIP code | 45005 |
|---|---|
| Primary city | Franklin |
| State | Ohio (OH) |
| County | Warren FIPS 39165 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 32,251 |
| Coordinates | 39.534780, -84.301800 |
How ZIP+4 works in 45005
The four digits after the hyphen encode a delivery segment inside 45005. 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 45005 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 45005.
| ZIP | City | Distance |
|---|---|---|
| 45066 | Springboro, OH | 4.3 mi |
| 45342 | Miamisburg, OH | 6.7 mi |
| 45050 | Monroe, OH | 7.1 mi |
| 45044 | Middletown, OH | 7.2 mi |
| 45042 | Middletown, OH | 7.3 mi |
| 45036 | Lebanon, OH | 7.6 mi |
| 45327 | Germantown, OH | 8.5 mi |
| 45458 | Dayton, OH | 8.9 mi |
| 45449 | Dayton, OH | 9.5 mi |
| 45067 | Trenton, OH | 9.9 mi |
| 45459 | Dayton, OH | 10.5 mi |
| 45439 | Dayton, OH | 11.9 mi |
Questions about 45005
What is the ZIP+4 code for 45005?
45005 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 45005, you need to look up a specific street address to get them.
What city is 45005?
45005 is assigned to Franklin, Ohio, in Warren 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.